Relevant bibliographies by topics / Liquid fertilizers

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Academic literature on the topic 'Liquid fertilizers'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Liquid fertilizers"

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Eaton, Touria E., Douglas A. Cox, and Allen V. Barker. "Sustainable Production of Marigold and Calibrachoa with Organic Fertilizers." HortScience 48, no. 5 (May 2013): 637–44. http://dx.doi.org/10.21273/hortsci.48.5.637.

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Experiments were conducted to evaluate organic fertilizers in production of greenhouse-grown calibrachoa (Calibrachoa ×hybrida Llave & Lex) and marigold (Tagetes erecta L.) and nitrogen (N) leaching from containers during production. Calibrachoa was grown with five fertilizer treatments: one chemical, one organic-based, and three organic (liquid fish, oilseed extract, and a combination of oilseed extract and liquid fish). Marigold was grown with seven fertilizer treatments: one chemical and three organic (liquid fish, oilseed extract, and alfalfa pellets) used either alone or in combination. Chemical or organic-based fertilizers produced the best quality calibrachoa based on plant appearance and size. Liquid fish fertilizer produced healthy plants but smaller plants than those grown with chemical or organic-based fertilizers. Plants grown with oilseed extract were stunted and showed chlorosis. If oilseed extract was combined with liquid fish, the plants were similar to those grown with the chemical or organic-based fertilizers in size and quality. Chemical or liquid fish fertilizers produced the highest quality marigold based on plant appearance. Plants fertilized with alfalfa pellets were sparse and pale green. Oilseed extract produced the poorest growth and quality. If oilseed extract was combined with liquid fish or alfalfa, marigold plants were close in size and development to chemical-fertilized plants without nutrient deficiency and with some enhancement of nutrient levels in the leaves. The combination of alfalfa and liquid fish produced similar results. The highest N leaching resulted from plants fertilized by liquid fish, mostly in the form of ammonium nitrogen (NH4-N). Combining liquid fish with alfalfa or oilseed extract reduced the amount of N leached from the pots. The results suggest that organic fertilizers can be used successfully to grow commercial greenhouse crops but should be combined for good plant quality and environmental sustainability.
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Syukran, Syukran, Ismayani Ismayani, and Fajri Jakfar. "Analisi Produksi dan Pendapatan Petani Padi Sawah yang Menggunakan Pupuk Hayati Cair di Blang Cut Kecamatan Suka Makmur Kabupaten Aceh Besar." Jurnal Ilmiah Mahasiswa Pertanian 2, no. 4 (November 1, 2017): 271–77. http://dx.doi.org/10.17969/jimfp.v2i4.5553.

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Abstrak. Hasil produksi padi sawah yang rendah diakibatkan oleh kerusakan tanah, kerusakan tanah disebabkan oleh penggunaan pupuk kimia secara terus – menerus. Produksi tersebut mengakibatkan menurunnya pendapatan petani padi sawah. Terdapat inovasi terbaru mengenai cara pemupukan untuk membantu penyuburan tanah. Salah satu inovasi tersebut adalah pupuk hayati cair, penggunaan pupuk hayati cair dapat menurunkan penggunaan pupuk kimia sehingga dapat menurunkan biaya pemupukan kimia. Pengimplementasian pupuk ini dapat meningkatkan hasil produksi padi sawah. Oleh karena itu penelitian ini bertujuan untuk melihat berapa besar penurunan biaya pemupukan kimia saat menggunakan pupuk hayati cair serta untuk mengetahui peningkatan pendapatan petani padi sawah setelah menggunakan pupuk hayati cair. Hasil penelitian menunjukkan bahwa dengan menggunakan pupuk hayati cair dapat menekan biaya pemupukan kimia serta dapat meningkatkan hasil produksi padi dan pendapatan petani padi sawah.ANALYSIS OF PRODUCTION AND REVENUES OF PADDY FARMERS WHO USE LIQUIDE BIO - FERTILIZER IN VILLAGE BLANG CUT SUBDISTRICT SUKA MAKMUR DISTRICT ACEH BESARAbstract.Low production of paddy caused by defective soil. Devective soil caused by using chemical fertilizer continously. Low production of paddy caused decreasing income of paddy farmers. There was innovation about how to aid and fertilize the defective soil. One of the innovation is liquid bio-fertilizer. Application of liquid bio-fertilizers could provide less using chemical fertilizers. With the result that reduce chemical fertilizer oprational cost. Liquid bio-fertilizer not only fixing contexture of soil but also increasing production of paddy. Hence, this research purpose to show the magnitude of reducing chemical fertilizer oprasional costs along with using liquid bio- fertilizer and to find out the increasing of paddy farmers income afterwards. The result showed that by using liquid bio-fertilizer had reduced the cost of using chemical fertilizers, increased production, and increasing the income of paddy farmers.
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ENEMALI S.I, ALFA J, YUSUF O.Y, and MUAZU I. "Liquid organic fertilizer availability and utilization in Nigeria: A review." World Journal of Advanced Research and Reviews 20, no. 2 (November 30, 2023): 820–33. http://dx.doi.org/10.30574/wjarr.2023.20.2.2296.

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The word as in general has the responsibility to respond to the emerging food crisis to match the growing population. Africa and many other Low Income Countries under Stress [LICUS] will face a stiffer challenge. Africa and specifically Sub-Saharan Africa depends much on synthetic fertilizers with disease burden. The concept and awareness of Organic Fertilizer and its Utilization in Agro farming with attendant benefits in Nigeria is at its lowest ebb. This review highlighting availability, of Liquid Organic Fertilizer in Nigeria agro-allied market among farmers and the awareness/benefits in Organic farming reveals much on the scale of 10. 1-3 reliable fertilizers companies are visible with most emphasis on synthetic fertilizer blending only. 1-2 reliable fertilizer company manufactures urea and synthetic fertilizer from which other companies get involved in the distribution. 1-2 claimed that their fertilizers are purely organic in powdered sachet forms. 1-3 claimed to produce liquid organic fertilizer alongside synthetic fertilizer formulation. 1-2 notable liquid organic fertilizers available claimed foliar mode of application. 2 out of 10 makes use of solid human wastes for liquid organic fertilizer. 5 out of 10 liquid organic fertilizer were found to be compost in nature while 2 out of 10 claimed to be organic liquid in nature. 1 3 Liquid Organic Fertilizers encountered cannot be verified by literature on their composition, materials and process of production. The available liquid organic fertilizer in Nigeria is with mixed acceptance. Synthetic fertilizer manufacturers claimed that their products can be used as organic fertilizer. Droppings from animal waste claimed their products are manures and fertilizers. Other liquid organic fertilizer companies claimed use of sea weeds without clear mechanism of actions. Nevertheless, a liquid fertilizer company located in Kuje, Abuja has been identified to possess state of art product line facilities with purely organic materials as source.
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Khoi Nghia, Nguyen, Chau Thi Anh Thy, Le Thi Xa, and Do Thanh Luan. "Recycling of biogas wastewater to organic fertilizers and influence of organic fertilizers on maize, mung bean growth and yield under the field conditions." Applied Environmental Biotechnology 7, no. 1 (2022): 16–27. http://dx.doi.org/10.26789/aeb.2022.01.003.

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The objective of the study was to utilize the biogas effluents to produce solid and liquid organic fertilizers, as well as evaluate their effect on the growth and yield of corn and mung beans under field conditions. For liquid organic fertilizer, biogas effluents were mixed with fish emulsion and beneficial bacteria while biogas effluents-absorbing coal slag was mixed with sugarcane filter, fishmeal and beneficial bacteria to create solid organic fertilizer. Liquid organic fertilizer was irrigated with a dose of 5 L/1000 m2 while solid organic fertilizer was applied with a dose of 1 ton/ha with 75% recommended NPK formula for maize and mung bean. The results showed that applying solid or liquid organic fertilizer formulated from biogas effluents with other amendments helped to reduce the amount of recommended NPK fertilizer by 25%, but still maintained growth and yield of maize and mungbean equivalent to the control treatment fertilized with 100% recommended NPK. In conclusion, the amount of organic matter and N, P, K in biogas effluents from biogas digesters can be utilized to produce organic fertilizers which not only help to reduce chemical fertilizers, but also solve the environmental problems and create new friendly value-added products for practicing sustainable agricultural production.
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Jancaitienė, Kristina, and Rasa Slinksienė. "Solid-liquid equilibrium in liquid compound fertilizers." Chemical Industry and Chemical Engineering Quarterly 24, no. 1 (2018): 59–68. http://dx.doi.org/10.2298/ciceq160705019j.

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Liquid compound fertilizers (LCF) are aqueous salt solutions which nourish the soil. They contain nitrogen, phosphorus, potassium, sometimes calcium, magnesium and micronutrients. An LCF solution has practically no insoluble residue and contains the elements in a fully digestible form and is a high-speed, highly effective fertilizer. It is important to assess the equilibrium in the solid-liquid system when creating liquid compound fertilizers, since their basic properties, concentration and crystallization temperature, depend on it. The aim of the study was to determine properties of a liquid multicomponent (K+, NH4 +, Cl- and PO4 3-) system. This liquid multicomponent system, which was obtained as a by-product in the conversion of KCl and NH4H2PO4, can be used as a liquid fertilizer. This work investigates liquid fertilizers? chemical composition and their physicochemical properties, such as crystallization temperature, pH, density, viscosity and corrosivity. In order to increase nitrogen concentration, ammonium nitrate was added. Composition of the solid phase obtained by crystallization was identified by methods of chemical and instrumental analysis (radiography, infrared molecular absorption spectroscopy and optical microscopy). The results show that all properties of liquid fertilizers are best when the concentration of NH4NO3 in liquid solutions equals 8%.
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Valšíková-Frey, Magdaléna, Dominika Sopková, Marián Rehuš, and Patrik Komár. "Impact of Organic Fertilizers on Morphological and Phenological Properties and Yield of Tomatoes." Acta Horticulturae et Regiotecturae 21, no. 2 (November 1, 2018): 48–53. http://dx.doi.org/10.2478/ahr-2018-0011.

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Abstract The field trial was carried out in 2016 and 2017 on the grounds of the Botanical Garden of the Slovak University of Agriculture in Nitra. The aim of the paper was to test the impact of new organic fertilizers from Company Rokosan on the yield parameters and the morphological and phenological properties of tomatoes. In the experiments, we observed two determinant varieties, namely ‘Brixol F1’ and ‘Uno Rosso F1’. We used the bulk organic fertilizer Rokosan P, designed for fruiting vegetables, and the liquid fertilizer Rokohumin Z. Both forms of fertilizers are produced as organic biomineral fertilizers, their main ingredient being keratin. They contain 9% N, 9% P2O5, 9% K2O, 3% MgO and trace elements. The total harvest in the control variant without fertilization was the lowest compared to the fertilized variants. The second variant was fertilized with the Rokosan P fertilizer, and the harvests were in both years and in both varieties higher than in the variant 1. The third variant was fertilized with the Rokohumin Z, the liquid fertilizer and achieved the best crop yields per plant. For the ‘Uno Rosso F1’ the best total harvest weight was 7.2 kg per plant in 2016 and 8.96 in 2017. For the ‘Brixol F1’, the highest harvest was 8.14 kg per plant in 2016 and 9.24 kg in 2017. In terms of yields and the number of fruits, combined fertilization with the bulk fertilizer Rokosan P and the liquid fertilizer Rokohumin Z reached the second highest values.
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Lad, Samradni Sanjay, Rutwik Pradeep Khopekar, Akshada Anand Parab, Nilesh Ramesh Kadam, and Sunil Deoraoji Shankhadarwar. "Effect of Seaweed Liquid Fertilizer on Sorghum bicolor and Pennisetum glaucum." Current Agriculture Research Journal 11, no. 3 (January 5, 2024): 915–27. http://dx.doi.org/10.12944/carj.11.3.20.

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Millets are small-seeded grasses belonging to the family Poaceae that help in human and animal nourishment. They are mostly grown by using chemical fertilizers which are depleting soil fertility. Organic fertilizers are eco-friendly and help to enhance the growth and development of plants thereby maintaining soil health. Seaweed liquid fertilizer (SLF) are organic fertilizers that can be used to control the side effects caused by harmful chemical fertilizers. The present study was carried out to check the effects of seaweed liquid fertilizer on the growth and development of millets. Different concentrations of seaweed liquid fertilizer (0.25%, 0.50%, and 0.75%) were prepared from Sargassum cinerum, Ulva intestinalis, and Padina tetrastromatica, which were tested on Sorghum bicolor and Pennisetum glaucum. Growth parameters like root length, shoot height, flowering-fruiting, and biochemical analysis like proteins were analyzed by using seaweed liquid fertilizer and chemical fertilizer. Plants treated with 0.50% concentration of seaweed liquid fertilizer showed higher protein content. Total chlorophyll was found to be higher in treated plants than in control plants. Flowering and fruiting were observed earlier in seaweed liquid fertilizer treated plants. This concludes that seaweed extracts can be used as a promising alternative to chemical fertilizers, which plays a significant role in the holistic growth enhancement of plants.
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Irmawanty, Irmawanty, Dian Safitri, Wira Yustika Rukman, and Haerul Syam. "Organic waste processing and its application to potato plants through hydroponic techniques." JPBIO (Jurnal Pendidikan Biologi) 6, no. 1 (April 29, 2021): 84–95. http://dx.doi.org/10.31932/jpbio.v6i1.1040.

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The Kalimbu market is one of the traditional markets in South Sulawesi with a very high buying and selling activity. The organic waste that is mostly generated from the activities at the Kalimbu Market is leftover vegetables and fruit. Vegetable and fruit waste provides a big advantage if it is managed properly, which is converted into liquid organic fertilizer through a fermentation process. The liquid organic fertilizers produced can help farmers overcome the high price of synthetic fertilizers and save the earth from pollution. The method used to determine the effect of types of organic waste (vegetable waste and fruit waste) on the physical and chemical quality of solid and liquid organic fertilizers used a randomized block design. Whereas the application of solid and liquid organic fertilizers to the production and nutritional content of potato plants used a treatment consisting of P0: basic fertilizer + without liquid organic fertilizer and P1: basic fertilizer + liquid organic fertilizer. The results of research on the manufacture of liquid organic fertilizer from Kalimbu market waste with vegetable and fruit samples also showed that the two samples required different storage times for composting. Plants treated with liquid organic fertilizer from the Kalimbu market waste have better stem growth, leaf number, and stem number.Keywords: Waste, organic, fermentation, hydroponic
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Tuhuteru, Sumiyati, and Inrianti. "Pembuatan Mikroorganisme Lokal Bonggol Pisang pada Kelompok Tani Tunas Harapan Distrik Walelagama, Jayawijaya, Papua." Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat 5, no. 3 (November 27, 2019): 188–94. http://dx.doi.org/10.29244/agrokreatif.5.3.188-194.

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One efforts to increase crop production include improvements in cultivation systems, for examples the application of sustainable organic farming, such as use of the liquid organic fertilizers. The continuous use of liquid organic fertilizer on the soil serves to increase soil fertility. Provision of fertilizers can add nutrients to the growing media. The application of fertilizer can be in the form of organic or inorganic fertilizers. One alternative to maintain and improve crop yields is by providing liquid organic fertilizer. The purpose of this study was to provide additional knowledge related to the forms of liquid organic fertilizer and the benefits of using liquid organic fertilizer through the manufacture of Micro-Organism (MOL) banana weevil which is one form of liquid organic fertilizer that is easily obtained by the community. The activity through KKN-PPM is to provide socialization and training in making MOL of banana weevil. The result show that the community in the Walelagama District can develop knowledge related to organic fertilizers can beincrease plant productivity through the use MOL of banana weevil, whose ingredients are easily obtained so that the community can improve the existing organic farming system.
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Sapanli, Kastana, Widya Dwi Prasetyoningrum, Qori Siela Rawina, Ayu Lestari, Muhammad Yusuf, Pawitri Adhistyana Mayesti, Aprilia Ulfatul Azizah, et al. "Pemanfaatan Limbah Air Seni Kelinci menjadi Pupuk Organik Cair di Desa Widorkandang, Magetan." Jurnal Pusat Inovasi Masyarakat (PIM) 4, no. 1 (May 18, 2022): 1–7. http://dx.doi.org/10.29244/pim.v4i1.40804.

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Widorokandang Village, Magetan Regency, East Java has potential in agriculture and animal husbandry. The problems faced in agriculture are about the price of fertilizers and the use of inorganic fertilizers in the long term. The alternative of reducing the use of inorganic fertilizers by using organic fertilizers can help to improve soil structure and good nutrients. This is supported by the existence of a rabbit farm in Widorokandang village which produces rabbit urine waste as the main ingredient for making liquid organic fertilizer. The process of making liquid organic fertilizer is done by fermentation which is easy for the community to do. IPB KKN-T students together with rabbit breeders in Widorokandang village made a liquid organic fertilizer product "Growi". This product is expected to help overcome fertilizer problems in Widorokandang village and improve the community's economy. The relative profit value of the "Growi" liquid organic fertilizer business has a value of more than 1 which is a feasible business.
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Dissertations / Theses on the topic "Liquid fertilizers"

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Campbell-Nelson, Katie. "Assessment of ammonia volatility from fall surface-applied liquid dairy manure." Amherst, Mass. : University of Massachusetts Amherst, 2009. http://scholarworks.umass.edu/theses/273/.

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Campbell, Allan J. "Design and evaluation of liquid swine manure injectors for potato nutrient placement." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0025/NQ50124.pdf.

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Ndibewu, Peter Papoh. "A commercial process development for plant food formulation using polyprotic acids from natural extracts as chelating agents." Thesis, Nelson Mandela Metropolitan University, 2005. http://hdl.handle.net/10948/153.

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The citrus industry is one of South Africa's largest agricultural sectors in terms of export earnings with lemon fruits and juice as a trendsetter due to their high grade quality. According to growers, the Eastern Cape Province of South Africa alone produces an excess of about 10-14,000 tons of lemon juice which is presently of no economic value due to the sour taste and “bitterness”. As a result of this excess and in order to make use of the polyprotic acids naturally occurring in the lemon juice, four fertilizer nutrient mixtures are formulated, using lemon juice as base. From a conceptual scientific approach, characterization (physico-chemical and functional properties determinations) of Eureka Lemon fruit juices were undertaken, followed by smaller scale batch formulation experiments. On the basis that these lemon juice-based fertilizer mixtures are prepared following standard liquid fertilizer formulation guidelines, a field test was conducted to evaluate their potential effectiveness to influence plant growth. A growth chamber testing on tomato plants revealed high growth response (> 99.9 % certainty) potential in two of the semi-organic mixtures formulated while the organic mixture showed a relatively good growth rate as compared to the control (pure tap water). According to statistical analysis (ANOVA) comparison, two of the semi-organic mixtures performed considerably better than the two commercial samples evaluated. Potential benefits profoundly associated with these nutrient mixtures as compared to similar liquid fertilizer products on the market is that most nutrients are chelated and dissolved in solution. Also, the mixtures contain all necessary nutrients including plant growth substances required for healthier plant growth. The most important socioeconomic impact is the value addition to the technology chain in the citrus industry. The use of fluid fertilizers in significant quantities is less than twenty years old. Nevertheless, growth has been so rapid that in South Africa demand for mixed liquid fertilizer has greatly increased from 90 000 tons NPK & blended micronutrients in 1955 to more than 600 000 per annum tons today (Report 41/2003, Department of Minerals and Energy). The liquid fertilizers market is sparsely specialized with major competitors like Omnia, Kynoch and Foskor supplying more than 50 % of the market demand. Amongst the nutrient mixtures formulated, mixture one is an NPK (1-1-2) based nutrient mixture containing both secondary nutrients (0.5 % Mg & 1.0 % Ca) and seven micronutrients (0.1 % Fe, 0.05 % Cu, 0.05 % Zn, 0.05 % Mn, 0.02 % B, 0.0005 % Mo and 0.0005 % Co). The composition of this mixture offers the formula a potential to be used as a general purpose (all stages of plant growth) fertilization mixture in view of its balanced composition (containing all essential plant nutrients). Mixture two contains essentially the micronutrients and in higher concentrations (0.3 % Fe, 0.3 % Cu, 0.1 % Zn, 0.2 % Mn, 0.02 % B, 0.0005 % Mo and 0.0005 % Co) as compared to mixture one except for boron, molybdenum and cobalt. The concentration of the micronutrients contained in this mixture is adequately high which offers a potential for it to be used in supplementing nutrition in plants with critical micronutrient-deficient symptoms. Mixture three is very similar to mixture two (1.0 % Fe, 0.05 % Cu, 0.05 % Zn, 0.05 Mn, 0.05 % B, 0.0005 % Mo and 0.0005 % Co) except that the concentrations of all seven micronutrients are considerably less than those of contained in mixture two. However, the concentration of iron in this mixture is as high as 1.0 %. The mixture has a potential to be used in high iron-deficient situations. Mixture four is an organic formula with relatively low nutrient concentrations (NPK-0.02-0.02-1, 0.27 % Mg, 0.02 % Ca, 0.008 % Fe, 0.26 % Cu, 0.012 % Zn, 0.009 % Mn). Nevertheless, this mixture is appealing for organically grown crops where the use of chemicals is prohibited by standards. These lemon juice-based nutrient mixtures were further characterized and tested for stability and storability over a period of eight weeks. This study revealed no major change in the physical quality (colour, pH and “salt out” effect). The basic formulation methodology is a two-step procedure that involves filtration of the lemon juice to remove membranous materials, mixing at ambient temperature and stabilization of the nutrient mixtures. However, for the organic nutrient formula mix, filtration follows after extraction of nutrients from plant materials using the lemon juice.
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Ilchenko, A. O. "Technology development of obtaining high concentration ammonia water and liquid multiple-nutrient fertilizers on its basis." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/63230.

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Decreasing of the crop productivity and falling-off in agricultural production make farmers in Ukraine look for a solution from the critical situation. The main factor of increasing productivity and effective land use is applying organic and mineral manure. The use of organic fertilizers is complicated by a sharp reduction in the number of livestock, and thus the number of organics as well. Farmers don’t have enough money to stock up with mineral fertilizers. According to the world experience, using liquid fertilizers is the most technologically and economically advantageous. They provide drastic fertilizer loss reduction, full mechanization of handling operations, high uniform soil fertilization and labor costs reduction.
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Ляпощенко, Олександр Олександрович, Александр Александрович Ляпощенко, Oleksandr Oleksandrovych Liaposhchenko, Максим Сергійович Скиданенко, Максим Сергеевич Скиданенко, Maksym Serhiiovych Skydanenko, Віталій Михайлович Маренок, et al. "Розроблення та оптимізаційне моделювання сепараційного, тепло- та масообмінного обладнання установки для виробництва рідких азотних добрив." Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45639.

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Зниження врожайності та спад виробництва сільськогосподарської продукції, порушення екологічної рівноваги, важкий фінансовий стан товаровиробників вимушують працівників АПК України шукати вихід із критичної ситуації. Головним фактором підвищення врожайності та ефективності використання земель є внесення органічних і мінеральних добрив.
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Sigrist, Andrew B. (Andrew Bernard). "Influence of incubating liquid hog manure and monocalcium phosphate on phosphorus availability and fractionation." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69518.

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Incubation mixtures of liquid hog manure (LHM), with and without monocalcium phosphate (MCP) were added to an Ormstown silty clay loam and a Ste. Rosalie clay. Ryegrass (Lolium multiflorum Lam.) was cultivated in a pot study in order to determine yield, total P uptake and soil P content as affected by various P and manure treatments.
Aeration of LHM with MCP was successful in reducing ammonia volatilization by 62.4%. However, for both soils, neither of the treatments; LHM amended and aerated with MCP and applied at 32 t ha$ sp{-1}$ LHM containing 513 kg $ rm P sb2O sb5 ha sp{-1}$ from MCP nor LHM aerated without MCP applied at 32 t ha$ sp{-1}$ LHM, plus 513 kg $ rm P sb2O sb5 ha sp{-1}$ from MCP, significantly affected ryegrass yields compared to the lone addition of MCP fertilizer (513 kg $ rm P sb2O sb5 ha sp{-1}).$ Total P uptake in ryegrass was significantly higher for the incubated treatments in the Ste. Rosalie soil alone.
Although additions of LHM or MCP and LHM-MCP combinations affected Mehlich-III and Hedley P fractions, the incubation of MCP with LHM did not significantly increase either inorganic- or organic-P fractions when compared to MCP alone. Therefore, premixing MCP with the LHM had no effect on improving P availability in either the Ormstown or Ste. Rosalie soils.
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Dominguez, Danielle Xanchão. "Caracterização de fertilizantes orgânicos e organominerais fluidos." Universidade do Estado do Rio de Janeiro, 2007. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=879.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
O uso de fertilizantes orgânicos e organominerais fluidos têm crescido bastante no mundo e também no Brasil, nas últimas duas décadas. Esse rápido crescimento da demanda por esses produtos levou o Ministério da Agricultura, Pecuária e Abastecimento a buscar novas metodologias para a verificação da qualidade dos mesmos. Este trabalho tem como objetivo obter informações sobre a natureza desses fertilizantes, avaliando metodologias existentes e testando novos métodos, visando contribuir para o desenvolvimento de um protocolo de controle de qualidade a ser adotado pelo Ministério da Agricultura e pelas empresas produtoras. Em uma primeira etapa, os fertilizantes foram caracterizados por meio de análises físicas e químicas conforme os métodos de rotina previstos na legislação. Adicionalmente, foram avaliados diferentes métodos de determinação de carbono, além do fracionamento das substâncias húmicas presentes nas amostras de fertilizantes, e posterior determinação do teor de carbono nas frações ácido húmico e fúlvico. Por meio da titulação potenciométrica, fez-se a especiação, identificação e quantificação dos grupos funcionais mais reativos presentes nas amostras. Na segunda etapa do trabalho, purificaram-se os ácidos húmicos de 15 amostras de fertilizantes. Após esse procedimento foi realizada a caracterização dos ácidos húmicos por espectrometria no infravermelho (FTIR) e por análise elementar (CHN). Os fertilizantes avaliados apresentaram grande variação em relação aos atributos analisados. Foram Observadas variações acentuadas em relação aos teores de carbono orgânico e carbono total, como também na qualidade dos compostos orgânicos presentes nos fertilizantes, o que deve refletir na sua eficiência agronômica. Pela correlação entre os métodos utilizados, observou-se a possibilidade de substituição de métodos de difícil execução, por métodos simplificados de baixo custo, permitindo sua aplicação em análises de rotina. Novos estudos, abrangendo um maior espectro de amostras, devem ser conduzidos para que se possam determinar parâmetros para os diferentes atributos químicos e físicos desses produtos, subsidiando tecnicamente a legislação.
The use of organic and organic-mineral fertilizers has grown fastly in the world and also in Brazil in the last two decades. This fast increase in the demand for these products took the Ministry of Agriculture to search new methodologies for the verification of their quality. This work has objective of obtaining information on the nature of these fertilizers, by evaluating existing methodologies and testing new ones, contributing to the development of a quality control protocol to be adopted by the Ministry of Agriculture and the producing companies. In a first stage, the fertilizers were characterized by means of physical and chemical analyses as the foreseen methods of routine in the legislation. Additionally, different methods of carbon determination were evaluated, beyond the humic substances fractionation in the samples of fertilizers, and posterior determination of the carbon in the humic and fulvic fractions. The most reactive functional groups in the samples were identified and quantified by potentiometric titration. The humic acids of fifteen fertilizer samples were extracted and purified. The humic acids were characterized by infrared spectrometry (FTIR) and elemental analysis (CHN). The evaluated fertilizers presented a large variation in relation to the analyzed characteristics. Large variations in relation to the levels of organic carbon and total carbon were observed, as well as in the quality of organic compounds in fertilizers that was reflected in its agronomic efficiency. By the correlation between the used methods, it was observed the possibility of substitution of methods of difficult execution for simplified methods of low cost allowing their application in routine analyses. New studies including a more representative set of samples must be carried out in order to determine parameters for the different chemical and physical attributes of these products given technical subsides to the legislation.
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Ляпощенко, Олександр Олександрович, Александр Александрович Ляпощенко, Oleksandr Oleksandrovych Liaposhchenko, Максим Сергійович Скиданенко, Максим Сергеевич Скиданенко, Maksym Serhiiovych Skydanenko, Віталій Михайлович Маренок, et al. "Optimization modeling and development of separation, heat and mass transfer equipment of the unit for production of liquid nitrogen fertilizers." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46771.

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According to the Report of the European Commission Joint Research Centre announced in 2015 raise of prices on nitrogen fertilizers is one of the biggest challenges which increase the food problem worldwide. The main reason for this is high energy consumption of the production process of solid nitrogen fertilizers. While production of liquid nitrogen fertilizers is 30-40% cheaper than manufacturing of complex concentrated water soluble fertilizers. In the agriculture of the United States about 50% of all nitrogen fertilizers are used in liquid form. One of such fertilizer types is ammonia water with ammonia concentration which is 25% min. But using of this liquid nitrogen fertilizer is economically efficient at a short distance from the production plant and manufacturing of liquid nitrogen fertilizers with high nitrogen content is a significant challenge for the chemical industry of Ukraine and the EU.
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Sirtautas, Ramūnas. "Trąšų pramonėje naudojamų korozijos inhibitorių analizė chromatografijos ir masių spektrometrijos metodais." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090810_100115-09219.

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Skystosios trąšos yra laikomos, gaminamos ir transportuojamos plieninėse talpose, kurios visiškai surūdytų, jei nebūtų pridedama korozijos inhibitorių. Korozijos inhibitoriai yra sudaryti iš cheminių junginių, kurie apsaugo plieno paviršių formuodami apsauginį sluoksnį. Šis sluoksnis apsaugo plieno paviršių nuo reakcijos su skystųjų trąšų komponentėmis ir taip galima sutaupyti milijonines lėšas, nesant būtinybės keisti ar taisyti plienines talpas. Lietuvoje AB „Achema“ per metus pagamina apie 1 milijoną tonų skystųjų trąšų. Dažniausiai korozijos inhibitorius sudaro riebiosios rūgštys, aminai, paviršiaus aktyvios medžiagos, glikoliai ir kt. Korozijos inhibitoriai plačiai analizuojami dujų ir skysčių chromatografijos - masių spektrometrijos metodais. Šiame darbe bus pristatyti dujų chromatografijos - masių spektrometrijos, efektyviosios skysčių chromatografijos - elektropurkštuvinės jonizacijos - skrydžio laiko masių spektrometrijos ir matrica skatinamos lazeriu sužadinamos - skrydžio laiko masių spektrometrijos metodai komercinių korozijos inhibitorių sudėties nustatymui ir indentifikavimui. Šio darbo tikslas buvo optimizuoti chromatografijos ir masių spektrometrijos metodikas skirtas korozijos inhibitorių analizei ir nustatyti komercinių korozijos inhibitorių kiekybinę ir kokybinę sudėtį. Darbo rezultatai. Ištirti trys skirtingų gamintojų komerciniai korozijos inhibitoriai: Cordon 99, Galoryl Ic 22, Ixonol-5. Dujų chromatografijos - masių spektrometrijos metodu nustatyta... [toliau žr. visą tekstą]
Liquid fertilizers are stored, manufactured, and transported in metallic tanks which can completely corrode if corrosion inhibitor will not be added. Corrosion inhibitors are chemical compounds which protect metallic surface by forming a protection layer. This layer protects metallic surface from reaction with liquid fertilizers compounds and can save millions of dollars, since there are no need to replace or repair the tanks. In Lithuania Achema corporation is producing about 1 million tons of liquid fertilizers in the year. Usual ingredients of corrosion inhibitors are fatty acids, amines, surfactants, glycols etc. Corrosion inhibitors are widely analyzed by gas and liquid chromatographic mass spectrometry methods. In this work will be presented gas chromatography- mass spectrometry, high performance liquid chromatography - electrospray ionization – time-of-flight - mass spectrometry and matrix assisted laser desorption ionization time-of-flight mass spectrometry, methods for commercial corrosion inhibitors determination and identification. The aim of this work is optimize chromatographic and mass spectrometry methods for corrosion inhibitors analysis and determinate quantitative and qualitative composition of commercial corrosion inhibitors. Results. Analyses of corrosion inhibitors: Cordon 99, Galoryl Ic 22, Ixonol-5 from three different manufacturers were performed. The main compound determined in all the corrosion inhibitors samples by gas chromatography mass... [to full text]
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Ляпощенко, Олександр Олександрович, Александр Александрович Ляпощенко, Oleksandr Oleksandrovych Liaposhchenko, Віталій Михайлович Маренок, Виталий Михайлович Маренок, Vitalii Mykhailovych Marenok, Максим Сергійович Скиданенко, et al. "Розроблення технології отримання аміачної води високої концентрації та рідких комплексних добрив на її основі." Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45667.

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Зниження врожайності сільськогосподарських культур та спад виробництва сільськогосподарської продукції, змушує фермерів України шукати вихід із критичної ситуації. Головним фактором підвищення врожайності та ефективності використання земель є внесення органічних і мінеральних добрив.
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Books on the topic "Liquid fertilizers"

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Dillard, Ewell F. Precipitation of impurities in 9-32-0 grade fluid fertilizers. Muscle Shoals, Ala: National Fertilizer Development Center, Tennessee Valley Authority, 1986.

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National Fertilizer Development Center (U.S.) and Tennessee Valley Authority Library, eds. Fluid fertilizer reference manual. Muscle Shoals, Ala: Tennessee Valley Authority, Technical Library, 1989.

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E, Moore O., and National Fertilizer Development Center (U.S.), eds. Ultrasonic gelling of channelized 2:1 clay (palygorskite and sepiolite) in ionic media. Muscle Shoals, Ala: Tennessee Valley Authority, National Fertilizer Development Center, 1989.

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Foundation, Fluid Fertilizer, and Fluid Fertilizer Foundation (1991 : Scottsdale, Ariz.), eds. Agronomic technology for the 1990's: Report to the Fluid Fertilizer Foundation membership, Scottsdale, Arizona, March 4-6, 1991 : 1991 Research Symposium Proceedings. [Manchester, MO] (339 Consort Dr., Manchester 63011): The Foundation, 1991.

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Symposium, Fluid Fertilizer Foundation. 1989 research symposium proceedings: "fluid fertilizer research advancing crop production technology" : report to the Fluid Fertilizer Foundation membership : Scottsdale, Arizona, March 7-9, 1989. Manchester, MO (339 Consort Dr., Manchester 63011): The Foundation, 1989.

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Downing, Troy. Calculating dairy manure nutrient application rates. [Corvallis, Or.]: Oregon State University Extension Service, 2000.

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Dominion Experimental Farms and Stations (Canada), ed. Barnyard manure: Applying all the manure made on the farm at the right time in the right place ... [Ottawa?: Dept. of Agriculture?, 1997.

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Canada. Dept. of Agriculture., ed. Barn-yard manure: Its nature, functions, composition, fermentation, preservation and application. [Ottawa?]: Dept. of Agriculture, 1993.

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Dam, Kofoed A., Williams J. H. 1925-, L'Hermite P. 1936-, and Commission of the European Communities. Environment Research Programme., eds. Efficient land use of sludge and manure. London: Elsevier Applied Science Publishers, 1986.

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Ingham, Elaine R. The compost tea brewing manual. [Eugene, Or.]: Unisun Communications, in association with the Sustainable Studies Institute, 2000.

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Book chapters on the topic "Liquid fertilizers"

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Águas, Paulo M. P., and Richard Godwin. "Sub-surface injection of liquid waste." In Fertilizers and Environment, 275–81. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1586-2_46.

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Richa. "Liquid Bio-Fertilizers: Prospects and Challenges." In Metabolomics, Proteomes and Gene Editing Approaches in Biofertilizer Industry, 77–99. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3561-1_5.

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Mayor, A., X. Vecino, M. Reig, N. de Arespacochaga, C. Valderrama, and J. L. Cortina. "Ammonium Valorization from Urban Wastewater as Liquid Fertilizers by Using Liquid–Liquid Membrane Contactors." In Hollow Fiber Membrane Contactors, 225–40. First edition. | Boca Raton : Taylor and Francis, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429398889-20.

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Rani Juneius, C. Elizabeth, M. Sundari, R. Eswaralakshmi, and S. Elumalai. "Seaweed Liquid Fertilizers: A Novel Strategy for the Biofortification of VegeTables and Crops." In Microbial Biotechnology, 109–17. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7140-9_5.

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Turan, Veysel, Sevcan Aydın, and Osman Sönmez. "Production, Cost Analysis, and Marketing of Bioorganic Liquid Fertilizers and Plant Nutrition Enhancers." In Microorganisms for Sustainability, 193–98. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6664-4_13.

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Fokin, Sergey, and Olga Piletskaya. "Changes in the Yield and Quality Grain of Soybean When Using Liquid Fertilizers." In Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2021), 246–54. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91402-8_29.

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Milyutkin, Vladimir, Sergey Mashкov, Dmitry Rudoy, Viktor Pakhomov, Marina Egyan, Natia Ugrekhelidze, and Natalya Kulikova. "Efficient Technology of Potato Cultivation with Top Dressing with Liquid Fertilizers During Fertigation." In XV International Scientific Conference “INTERAGROMASH 2022”, 1705–15. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21219-2_189.

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Puwanto, Febrina Angelina Samosir, Yuyun Yuwariah, Sumadi, and Tualar Simarmata. "Viability of Pseudomonas plecoglossicida and Rhizobium sp. LM-5 as Liquid Bacterial Fertilizers in Various Formulated Carriers." In Plant Growth Promoting Rhizobacteria (PGPR): Prospects for Sustainable Agriculture, 185–93. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6790-8_16.

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Milyutkin, Vladimir, Vladimir Shakhov, Viacheslav Lebedenko, Dmitry Rudoy, Anastasiya Olshevskaya, and Victor Chigvintsev. "An Effective Innovative Complex of Sprayer and Multi-injector for Applying Liquid Fertilizers in One Operation and in Complex." In Lecture Notes in Networks and Systems, 1449–59. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11058-0_146.

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Milyutkin, Vladimir, Alex Miliutkin, Andrey Mozgovoy, Dmitry Rudoy, Tatyana Maltseva, and Victor Chigvintsev. "Innovative Technologies for the Efficient Use of UAN Liquid Fertilizers: Production, Logistics and Application in Case of Lack of Moisture and Global Warming." In Lecture Notes in Networks and Systems, 1375–83. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11058-0_139.

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Conference papers on the topic "Liquid fertilizers"

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Jančaitienė, Kristina, and Ramunė Sidaraitė. "Liquid Complex Fertilizers with Bio-Additives." In International Conference EcoBalt. Basel Switzerland: MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023092030.

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IVANOV, Sergey, Pavel LOPUHOV, Irina ZAHAROVA, and Nikolay GLAZ. "INFLUENCE OF TOP DRESSING WITH LIQUID COMPLEX FERTILIZER ON THE YIELD OF SOFT WHEAT." In Multifunctional adaptive fodder production. ru: Federal Williams Research Center of Forage Production and Agroecology, 2024. http://dx.doi.org/10.33814/mak-2023-32-80-111-116.

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Interest in liquid complex fertilizers increases in conditions of insufficient moisture during the growing season. The last four years in the Urals are dry; the values of long-term climatic norms of precipitation are not achieved. At the same time, the soils of the zone are predominantly deficient in phosphorus supply, and fertilizing with nitrogen is required. The most technologically advanced technique is foliar top dressing using sprayers. The use of liquid complex fertilizers PhosAgro (N11P37) (APALIQUA NP 11:37) containing both phosphorus and nitrogen in its composition was studied. The use of complex fertilizer APALIQUA NP 11:37 increased the wheat yield by 1.5 times compared to the control. With a single top dressing, an improvement in the quality of gluten was observed (the identified quality differentiation is 67, group I), with a double top dressing, the gluten content increased by 1.9 %, in both studied options, an increase in the natural weight of the grain was noted.
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Shevchenko, V. A., A. M. Solovyov, and N. P. Popova. "INFLUENCE OF MINERAL AND ORGANO-MINERAL FERTILIZER SYSTEM ON HEAVY METAL CONTAMINATION OF UNPRODUCTIVE SOILS OF THE NON-CHERNOZEM ZONE." In Agrobiotechnology-2021. Publishing house of RGAU - MSHA, 2021. http://dx.doi.org/10.26897/978-5-9675-1855-3-2021-175.

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The influence of the long-term use of organic fertilizers of pig breeding complexes in the form of a solid fraction of manure (60...80 t/ha) and liquid effluents (100...120 m3/ha), as well as the mineral fertilizer system N85P40K90 on the dynamics of the content of heavy metals in the arable layer of previously developed unproductive reclaimed lands is considered.
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Kurbatov, K. A., A. A. Petrov, D. A. Fedorova, and P. M. Shipilin. "REDUCING THE WEIGHT OF THE BEARING STRUCTURE OF THE TRAILER FOR THE APPLICATION OF LIQUID COMPLEX FERTILIZERS WITHOUT LOSING STRENGTH." In INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. ООО «ДГТУ-Принт» Адрес полиграфического предприятия: 344003, г. Ростов-на-Дону, пл. Гагарина,1., 2023. http://dx.doi.org/10.23947/itse.2023.219-223.

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The article is devoted to the study of known aggregates for the application of liquid compound fertilizers. Liquid compound fertilizers and carbide-ammonium nitrate mixtures are promising in agriculture. Currently, leading manufacturers of agricultural machinery produce innovative aggregates for the application of liquid fertilizers. Each such unit has not only distinctive characteristics, but also some limitations, comprising in tractor power requirements and limited standard sizes. The article is of an overview nature, its purpose is to perform an analysis of modern existing devices for liquid compound fertilizers and carbide-ammonium nitrate, which shows their advantages and disadvantages, as well as a proposal for improving their design. The conclusion shows the result achieved so far.
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N.A., Golotov, Kambulov S.I., and Podlesny D.S. "FERTILIZATION OF A CARBAMIDE-AMMONIA MIXTURE." In OF THE ANNIVERSARY Х INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE «INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION» («ITSE 2022» CONFERENCE). DSTU-Print, 2022. http://dx.doi.org/10.23947/itse.2022.43-45.

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Reig, Mònica, Xanel Vecino, Julio López, Oriol Gibert, César Valderrama, and José Luis Cortina. "Operation mode study of liquid-liquid membrane contactors for ammonia valorisation as liquid fertilizers from domestic wastewater." In 14th Mediterranean Congress of Chemical Engineering (MeCCE14). Grupo Pacífico, 2020. http://dx.doi.org/10.48158/mecce-14.dg.09.14.

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Pašić, Sanid, and Dževad Lavić. "PRINOS SALATE „SHANGORE“ UZ UPOTREBU RAZLIČITIH NAČINA ISHRANE I NASTIRANJA ZEMLJIŠTA." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.149p.

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The paper presents the basic characteristics and prerequisites for improving the production of butter lettuce "Shangore" in order to obtain guidelines in the application of lettuce cultivation technology, stable yield, increased nutritional value and uniform quality. Fertilization treatments in the experiment included: phosphate-based mineral fertilizer, humic acid-based organic fertilizer, and liquid organic-mineral fertilizer. The results of this research indicate that the average value of lettuce yield was the highest in the application of fertilizers with potassium phosphate and the application of mulch combination PE - black foil and agrotextiles and amounted to 45,997 kg / ha in 2021. The lowest yield of lettuce was registered in the control variant and amounted to 22,487 kg / ha in 2020.
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Wellala, Harini Chamathka, Ravichandran Vinushayini, Lasantha Herath, and Colin N. Peiris. "Increasing Efficiency of Liquid Fertilizer via Incorporating Beneficial Microorganisms." In SLIIT International Conference on Advancements in Sciences and Humanities 2023. Faculty of Humanities and Sciences, SLIIT, 2023. http://dx.doi.org/10.54389/htea3029.

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The growing trend in organic agriculture has boosted the public awareness of organic fertilizer. The present study focused on isolating plant growth promoting microorganisms from the soil samples and incorporating beneficial plant growth promoting microbial (PGPM) strains to a provided liquid organic fertilizer to improve the efficiency of current formula. After isolating plant growth promoting microorganisms, experiments were conducted qualitatively and quantitatively to evaluate the efficacy of those species. Five phosphorous solubilizing bacteria and fungi, one potassium solubilizing bacteria, one potassium solubilizing fungi, six free living nitrogen fixing bacteria from different regions including Hambanthota, Mahiyanganaya, Galaha, Welimada, Rathnapura Sri Lanka were isolated using serial dilution plating on specific growth media and screened for various plant growth-promoting traits. The highest phosphate solubilization (67.8 mg/ml) was exhibited in PH.1 which also exhibited the highest phosphorous solubilization index (PSI) of 2, isolated from the soil sample received from Hambanthota district. Alginate encapsulation as small beads were produced from bacterial inoculum of PH.1 phosphorous solubilizing bacteria with sodium alginate, cellulose, and calcium chloride. A series of different percentages of cellulose (3% - 6%) was used during bead formation to evaluate the effect of cellulose on encapsulation efficiency of beads. Alginate beads were applied to the liquid fertilizer, incubated, and plated periodically to evaluate the efficiency of this formulation. The number of released cells of PH.1 reached 7.36 X 10 6 CFU/ml after 48 hours of incubation in the 0.25 X diluted liquid fertilizer which resulted from the bead formulation of 4% (w/v) Alginate + 3% (w/v) cellulose. The cellulose supported the entrapment of bacterial cells (plant growth-promoting bacterium) PH.1 as biofertilizer in the matrix, which reduced cell loss. The highest entrapment efficiency of 5.441% was obtained at 3% (w/v) cellulose, Overall, the appropriate content of cellulose mixed with alginate is conducive to changes in the morphology of microcapsules and increases the amount of biological encapsulation. This indicates that the beads-based biofertilizer can partially replace chemical fertilizers.
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Babin, V. L., N. M. Bryukhovskikh, L. V. Khamidulin, and D. S. Khrenov. "A REVIEW OF A UNIVERSAL TRAILED UNIT FOR THE APPLICATION OF LIQUID COMPLEX FERTILIZERS TO REDUCE THE SPECIFIC PRESSURE ON THE SOIL." In INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. ООО «ДГТУ-Принт» Адрес полиграфического предприятия: 344003, г. Ростов-на-Дону, пл. Гагарина,1., 2023. http://dx.doi.org/10.23947/itse.2023.64-70.

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The article is devoted to the study of a universal trailer unit for the application of liquid complex fertilizers Altai 6000. The demand for such devices is increasing every year due to the high efficiency of processing fields with liquid complex fertilizers, which results in an increase in yield. Many manufacturers set themselves the goal of increasing the load capacity of the unit to transport more working raw materials and further efficiency increasing, but often the reverse process occurs - crop yields begin to reduce, which is the result of over-compaction of the soil by heavy machines and devices. The article is an overview. Its purpose is to perform an analysis of the unit for applying liquid complex fertilizers to reduce the specific ground pressure, as well as an overview of possible methods and solutions to reduce soil compaction by the unit.
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Semenyuk, O. V. "Yield of winter wheat using complex fertilizers based on amino acids." In CURRENT STATE, PROBLEMS AND PROSPECTS OF THE DEVELOPMENT OF AGRARIAN SCIENCE. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2020. http://dx.doi.org/10.33952/2542-0720-2020-5-9-10-46.

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In a three-year field study, the effect of liquid complex organomineral fertilizers based on amino acids on the yield of soft winter wheat was studied. The early leaf treatment of crops with “Polydon Amino Plus” and “Polydon Amino Mix” fertilizers increased the crop yield by 9.3 % and 11.9 %, respectively.
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Reports on the topic "Liquid fertilizers"

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Saltzman, Sarina, Bruria Heuer, Charles S. Helling, Zev Gerstl, and Clyde C. Dowler. Combined Application of Liquid Fertilizers and Pesticides through Irrigation Systems. United States Department of Agriculture, November 1985. http://dx.doi.org/10.32747/1985.7562338.bard.

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Barnhart, Stephen K. Liquid Swine Manure as a Fertilizer Source for Established Alfalfa. Ames: Iowa State University, Digital Repository, 2001. http://dx.doi.org/10.31274/farmprogressreports-180814-887.

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Barnhart, Stephen K. Liquid Swine Manure as a Fertilizer Source for Annual and Perennial Grass Forage. Ames: Iowa State University, Digital Repository, 2001. http://dx.doi.org/10.31274/farmprogressreports-180814-1055.

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de Boer, Herman. Nitrate leaching from liquid cattle manure compared to synthetic fertilizer applied to grassland or silage maize in the Netherlands. Wageningen: Wageningen Livestock Research, 2017. http://dx.doi.org/10.18174/425920.

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5

Shmulevich, Itzhak, Shrini Upadhyaya, Dror Rubinstein, Zvika Asaf, and Jeffrey P. Mitchell. Developing Simulation Tool for the Prediction of Cohesive Behavior Agricultural Materials Using Discrete Element Modeling. United States Department of Agriculture, October 2011. http://dx.doi.org/10.32747/2011.7697108.bard.

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Abstract:
The underlying similarity between soils, grains, fertilizers, concentrated animal feed, pellets, and mixtures is that they are all granular materials used in agriculture. Modeling such materials is a complex process due to the spatial variability of such media, the origin of the material (natural or biological), the nonlinearity of these materials, the contact phenomenon and flow that occur at the interface zone and between these granular materials, as well as the dynamic effect of the interaction process. The lack of a tool for studying such materials has limited the understanding of the phenomena relevant to them, which in turn has led to energy loss and poor quality products. The objective of this study was to develop a reliable prediction simulation tool for cohesive agricultural particle materials using Discrete Element Modeling (DEM). The specific objectives of this study were (1) to develop and verify a 3D cohesionless agricultural soil-tillage tool interaction model that enables the prediction of displacement and flow in the soil media, as well as forces acting on various tillage tools, using the discrete element method; (2) to develop a micro model for the DEM formulation by creating a cohesive contact model based on liquid bridge forces for various agriculture materials; (3) to extend the model to include both plastic and cohesive behavior of various materials, such as grain and soil structures (e.g., compaction level), textures (e.g., clay, loam, several grains), and moisture contents; (4) to develop a method to obtain the parameters for the cohesion contact model to represent specific materials. A DEM model was developed that can represent both plastic and cohesive behavior of soil. Soil cohesive behavior was achieved by considering tensile force between elements. The developed DEM model well represented the effect of wedge shape on soil behavior and reaction force. Laboratory test results showed that wedge penetration resistance in highly compacted soil was two times greater than that in low compacted soil, whereas DEM simulation with parameters obtained from the test of low compacted soil could not simply be extended to that of high compacted soil. The modified model took into account soil failure strength that could be changed with soil compaction. A three dimensional representation composed of normal displacement, shear failure strength and tensile failure strength was proposed to design mechanical properties between elements. The model based on the liquid bridge theory. An inter particle tension force measurement tool was developed and calibrated A comprehensive study of the parameters of the contact model for the DEM taking into account the cohesive/water-bridge was performed on various agricultural grains using this measurement tool. The modified DEM model was compared and validated against the test results. With the newly developed model and procedure for determination of DEM parameters, we could reproduce the high compacted soil behavior and reaction forces both qualitatively and quantitatively for the soil conditions and wedge shapes used in this study. Moreover, the effect of wedge shape on soil behavior and reaction force was well represented with the same parameters. During the research we made use of the commercial PFC3D to analyze soil tillage implements. An investigation was made of three different head drillers. A comparison of three commonly used soil tillage systems was completed, such as moldboard plow, disc plow and chisel plow. It can be concluded that the soil condition after plowing by the specific implement can be predicted by the DEM model. The chisel plow is the most economic tool for increasing soil porosity. The moldboard is the best tool for soil manipulation. It can be concluded that the discrete element simulation can be used as a reliable engineering tool for soil-implement interaction quantitatively and qualitatively.
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