Relevant bibliographies by topics / Inorganic fertilizer

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Academic literature on the topic 'Inorganic fertilizer'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 June 2025

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Journal articles on the topic "Inorganic fertilizer"

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HU, CHENG, SHUANG-LAI LI, YAN QIAO, DONG-HAI LIU, and YUN-FENG CHEN. "EFFECTS OF 30 YEARS REPEATED FERTILIZER APPLICATIONS ON SOIL PROPERTIES, MICROBES AND CROP YIELDS IN RICE–WHEAT CROPPING SYSTEMS." Experimental Agriculture 51, no. 3 (2014): 355–69. http://dx.doi.org/10.1017/s0014479714000350.

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SUMMARYLong-term fertilization experiment has been conducted since 1981 to study the effect of soil management practices on soil fertility, soil carbon and nitrogen sequestration, soil culturable microbe counts and crop yields at the Nanhu Experimental Station in the Hubei Academy of Agricultural Sciences (situated in the middle reach of the Yangtze River and the rice–wheat cropping system). The experiment was designed with the following eight treatments: (1) unfertilized treatment: Control; (2) inorganic nitrogen fertilizer treatment: N; (3) inorganic nitrogen plus inorganic phosphorus fertilizer treatment: NP; (4) inorganic nitrogen, inorganic phosphorus plus inorganic potassium fertilizer treatment: NPK; (5) pig dung compost (manure) treatment: M; (6) inorganic nitrogen fertilizer plus manure: NM; (7) inorganic nitrogen, inorganic phosphorus fertilizer plus manure treatment: NPM and (8) inorganic nitrogen, inorganic phosphorus, inorganic potassium fertilizer plus manure treatment: NPKM. The results showed that long-term application of organic manure in combination with inorganic fertilizer significantly (p < 0.05) increased soil organic C concentrations compared with the corresponding inorganic fertilizers alone. Soil organic C contents were significantly (p < 0.05) increased in balanced application of NPK fertilizers in comparison to unbalanced application of fertilizers. After 30 years of experiment, soil organic C and total N sequestration rate averagely were 0.48 t ha−1 year−1 and 28.3 kg ha−1 year−1 in the fertilized treatments respectively; nevertheless, it were 0.27 t ha−1 year−1 and 9.7 kg ha−1 year−1 in the unfertilized treatment. Application of organic fertilizer in combination with inorganic fertilizer significantly (p < 0.05) increased culturable microbial counts compared with the corresponding inorganic fertilizers alone. The balanced application of NPK fertilizers significantly (p < 0.05) increased culturable microbial counts compared with unbalanced application of fertilizers. The average grain yield of wheat and rice was significantly (p < 0.05) higher in organic manure combined with inorganic fertilizer treatment than in inorganic fertilizer alone and unfertilized control. Therefore, long-term application of organic manure combined with inorganic fertilizer and balanced application of NPK fertilizers could increase soil organic C and total N sequestration, culturable microbial counts and crop grain yields.
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Tri Astuti, Suwarto, Herdhata Agusta, and Irzal Effendi. "Efisiensi Penggunaan Pupuk pada Sistem Pertanian Terpadu Minapadi." Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 48, no. 2 (2020): 210–17. http://dx.doi.org/10.24831/jai.v48i2.29995.

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Rice-fish farming is a model that is considered suitable to be applied in rice fields, both on a large or limited land as long as water availability is sufficient for rice and fish to grow. In rice-fish farming, there is integration between fisheries and agriculture where integration can improve the efficiency of the supply and use of fertilizer and feed. The research aimed to find the reduction of inorganic fertilizer in integrated rice-fish farming with the rice-fish system to increase fertilizer efficiency. The experiment used a single factor randomized block design with five levels of treatment, which are; rice monoculture with 100% inorganic fertilizer, fish monoculture, rice-fish farming with 100% inorganic fertilizer, rice-fish farming with 60% inorganic fertilizer, and rice-fish farming with 20% inorganic fertilizer. Rice-fish farming could reduce the application of inorganic fertilizers through complementary relationships between rice and fish. Applying inorganic fertilizer 20% of the reference dose in the rice-fish farming produced productivity that was not significantly different from the rice-fish farming fertilized with 60% and 100% of the reference dose, and the rice monoculture with 100% of the reference dose of inorganic fertilizer. Rice-fish farming could save 80% of inorganic fertilizers so that increasing the efficiency of using inorganic fertilizers. Fish survival and fish weight in rice-fish farming were not significantly different from fish monoculture.
 Keywords: inorganic fertilizer, monoculture, productivity, soil nutrients
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Marble, S. Christopher, Jeff L. Sibley, Charles H. Gilliam, and H. Allen Torbert. "Application of Composted Poultry Litter as a Fertilizer for Landscape Bedding Plants." HortScience 46, no. 10 (2011): 1367–72. http://dx.doi.org/10.21273/hortsci.46.10.1367.

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Each year, over 16 million tons of poultry litter is produced in the United States. Federal and state regulations now limit the amount of poultry litter that can be land-applied, making it difficult to store and dispose of poultry litter. The objective of this study was to evaluate composted poultry litter (CPL) as a fertilizer source for bedding plants at various rates in comparison with commercially available inorganic fertilizers in regard to plant growth and nutrient leaching. Two experiments were conducted to evaluate use of CPL as fertilizer for landscape annual bedding plants. Petunia spp. ‘Celebrity Red’ and Verbena hybrida ‘Quartz Scarlet’ were planted in raised beds simulating an urban landscape. Before planting, 10 inorganic fertilizer or CPL treatments were incorporated into the raised beds, including Peafowl® brand garden-grade fertilizer 13N–5.6P–10.9K (13-13-13) at rates of 4.9 g N/m2 and 9.8 g N/m2, Polyon® 13N–5.6P–10.9K (13-13-13) at rates of 4.9 g N/m2 and 9.8 g N/m2, and CPL at rates of 4.9 g N/m2, 9.8 g N/m2, 19.6 g N/m2, 29.4 g N/m2, 39.2 g N/m2, and 49 g N/m2. Use of CPL incorporated into landscape planting beds as a fertilizer source resulted in plants equal to or larger than plants grown with conventional inorganic fertilizers. Nitrate (NO3) and ammonia (NH4) levels in leachates from plots amended with CPL were comparable with plots amended with commercial inorganic fertilizers and nitrogen (N) levels were in most cases less in plots fertilized with CPL when compared with inorganic fertilizers when the same N rate was applied. Composted poultry litter may not be able to fully replace inorganic fertilizers, but it can reduce inorganic fertilizer requirements and provide an environmentally sound alternative to poultry waste disposal as well as provide beneficial aspects for plant growth in annual bedding plants.
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Dermiyati, Setyo Dwi Utomo, Kuswanta Futas Hidayat, et al. "Effectiveness of Organonitrofos Plus Fertilizer on Sweet Corn and Soil Chemical Properties of Ultisols." JOURNAL OF TROPICAL SOILS 21, no. 1 (2016): 9. http://dx.doi.org/10.5400/jts.2016.v21i1.9-17.

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This study aimed to examine Organonitrofos Plus fertilizer (OP) on sweet corn (Zea mays Saccharata L.) and its effect on changes in soil chemical properties of Ultisols. Organonitrofos Plus fertilizer is an enhancement of Organonitrofos fertilizer enriched with microbes at the beginning of the manufacturing process. Research was conducted in the greenhouse of Integrated Agricultural Laboratory of Lampung University. Treatment applied was a factorial of 4 × 2 × 3 with three replications in a randomized block design. The first factor was the dose of OP fertilizer (0, 10, 20, 30 Mg ha-1), the second factor was the dose of inorganic fertilizers (without inorganic fertilizers, and with inorganic fertilizers, namely Urea 0.44, 0.28 SP-36 and KCl 0.16 Mg ha-1), and the third factor was the dose of biochar (0, 10, 20 Mg ha-1). By a single OP fertilizers, inorganic fertilizers, and the interaction between the OP and the inorganic fertilizers increased the weight of dry stover, cob length, cob diameter, cob with husk and cob without husk of corn. OP fertilizers which are applied in Ultisols can improve soil fertility and increase corn production so that OP fertilizer can lessen the use of inorganic fertilizer and can be used as a substitute for inorganic fertilizer. RAE values were highest in treatment of O4K2B2 (30 Mg OP ha-1, with inorganic fertilizer, 10 Mg biochar ha-1) that was equal to 181%, followed by O2K2B3 (10 Mg OP ha-1, with inorganic fertilizer, 20 Mg biochar ha-1 ) with the difference in RAE value of 0.5%. [How to Cite: Dermiyati, SD Utomo, KF Hidayat, J Lumbanraja, S Triyono, H Ismono, NE Ratna, NT Putri dan R Taisa. 2016. Pengujian Pupuk Organonitrofos Plus pada Jagung Manis (Zea mays Saccharata. L) dan Perubahan Sifat Kimia Tanah Ultisols. J Trop Soils 21: 9-17 Doi: 10. 10.5400/jts.2016.21.1.9]
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Rini, Erin Puspita, and Sugiyanta Sugiyanta. "RESPON TANAMAN KUBIS (Brassica olacea var. capitata) TERHADAP KOMBINASI APLIKASI PUPUK ORGANIK DAN ANORGANIK." Jurnal Ilmu-Ilmu Pertanian Indonesia 23, no. 1 (2021): 46–52. http://dx.doi.org/10.31186/jipi.23.1.46-52.

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[CABBAGE (Brassica olacea var. capitata) GROWTH AND YIELD AFFECTED BY COMBINATION OF ORGANIC AND INORGANIC FERTILIZER APPLICATIONS]. The use of organic fertilizer increasingly sought by farmers due to the increase in demand for organic products by consumers and also awareness of the sustainability of the land. The use of organic fertilizers in the cultivation alone could improve the soil quality but needs to be balanced with inorganic fertilizers to meet the nutrient adequacy. This study aims to examine the effect of organic and inorganic fertilizers combination on the growth and cabbage yield, and also to determine the most efficient dosage combination of organic and inorganic fertilizers. This research was conducted at the IPB Pasir Sarongge Experimental Station, Cianjur, West Java from November 2020 to February 2021. The study was compiled using RCBD with 4 replications and 7 treatments. The results showed the combination of 0.75 doses of inorganic fertilizer (150 kg/ha of urea, 75 kg/ha SP36, and 75 kg/ha KCl) and 3 tons/ha of organic fertilizer could increase 14.87 to 15.44% plant height and the number of leaves at 12.82 -15.11% compared to the same dose of inorganic fertilizer treatment alone. The combination of 1 dose (200 kg/ha of urea, 100 kg/ha SP36, and 100 kg/ha KCl) inorganic fertilizer application and 2 tonnes/ha of organic fertilizer could increase 50,60% yield/plot and yield/ha cabbage than 1 dose of inorganic fertilizer treatment..
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La Habi, Maimuna. "Pembuatan Kompos Granul Ela Sagu Diperkaya Pupuk Majemuk 15:15:15 dan Aplikasinya Pada Budidaya Tanaman Bawang Merah." JURNAL BUDIDAYA PERTANIAN 14, no. 1 (2018): 21–27. http://dx.doi.org/10.30598/jbdp.2018.14.1.21.

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Effort to reduce the high dependence of farmers on urea fertilizers is adding sago pith waste granular compost as organic fertilizer. This research is conducted to develop granular-enriched compost and evaluate the effectiveness of granular-enriched compost on red onion cultivation. The application of granular-enriched compost was designed in a Randomized Block Design with three replicates. Treatments included 1) without fertilizers (KGES1); 2) the granular-enriched compost (8 t/ha) (KGES2); 3) recommended dosage of inorganic fertilizers such as Urea, SP-36, and KCl (KGES3); 4) inorganic fertilizer + granular-enriched compost (8 t/ha) (KGES4); 5) ½ x dosage of inorganic fertilizer + granular-enriched compost (8 t/ha) (KGES5); 6) 2× dosage of inorganic fertilizer + granular-enriched compost (8 t/ha) (KGES6); 7) ½× dosage of inorganic fertilizer + granular-enriched compost (12 t/ha) (KGES7) and 8) 2× dosage of inorganic fertilizer + granular-enriched compost (4 t/ha) (KGES8). The granular-enriched compost used in this research has characteristic such as N 2.43 %, P 0.59 %, and K 0.87 %. Based on this study it could be stated that reduction a half dose of inorganic fertilizer combined with compost granule 12 t/ha (KGES7) could give profitable dry bulb yield (13 t/ha) or increased 32% over the inorganic fertilizer. This combination could possibly reduce the amount of the inorganic fertilizer; therefore, it can be used for improving the effectiveness of fertilizer application on the red onion cultivation.
 Keywords: granular-enriched compost, inorganic, red-onion
 
 ABSTRAK
 Upaya untuk dapat mengurangi tingginya ketergantungan petani terhadap pupuk urea yang paling murah yaitu dengan penambahan pupuk organik kompos atau kompos granul. Penelitian ini bertujuan untuk mengembangkan pupuk organik diperkaya bentuk granul dari kompos ela sagu dan mengevaluasi efektifitasnya pada budidaya tanaman bawang merah. Rancangan penelitian yang digunakan yaitu rancangan acak kelompok dengan tiga kali ulangan. Perlakuan terdiri atas: tanpa pupuk (KGES1), kompos granul (8 t/ha) (KGES2), pupuk anorganik (Urea, SP-36, dan KCl) dosis anjuran (KGES3), pupuk anorganik + kompos granul (8 t/ha) (KGES4), ½× dosis pupuk anorganik + kompos granul (8 t/ha) (KGES5), 2 kali dosis pupuk anorganik + kompos granul (8 t/ha) (KGES6), ½× dosis pupuk anorganik + kompos granul (12 t/ha) (KGES7) dan 2 kali dosis pupuk anorganik + kompos (4 t/ha) (KGES8). Pupuk kompos granul diperkaya dengan pupuk phonska yang digunakan dalam penelitian memiliki karakteristik sebagai berikut: kandungan N = 2,43%, P = 0,59% dan K= 0,87%. Hasil Penelitian menunjukkan bahwa pengurangan setengah dosis pupuk anorganik yang dikombinasikan dengan kompos granul 12 t/ha menghasilkan bobot kering umbi tertinggi (13 t/ha) atau meningkatkan hasil 32% dari aplikasi pupuk anorganik.
 Kata kunci: bawang merah, inorganik, kompost granula diperkaya
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Zafar, Saima, and Abdul Wahid. "Use of organic fertilizer improves growth and yield of Triticum aestivum irrigated with textile wastewater." Journal of Arable Crops and Marketing 1, no. 1 (2019): 01–07. http://dx.doi.org/10.33687/jacm.001.01.3455.

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Water scarcity is one of those issues. Reuse of wastewater from textile industries is a very common strategy to cope with water scarcity. Continuous use of effluent water for agricultural purposes results in negative impacts on physicochemical properties of soil and plant. Organic fertilizers are considered beneficial for soil and crop quality. To exploit the strategies to use this effluent water safely for crop production a pot experiment was conducted with different combinations of organic and inorganic fertilizers viz. T1= Control (tap water + Recommended dose of NPK (130, 95 and 65 kg ha-1), T2=Wastewater + Recommended dose of NPK, T3=Wastewater + Organic fertilizer (200 kg ha-1) + Remaining NPK from inorganic fertilizer, T4=Wastewater + Organic fertilizer (400 kg ha-1) + Remaining NPK from inorganic fertilizer, T5 =Wastewater + Organic fertilizer (600 kg ha-1) + Remaining NPK from inorganic fertilizer and T6=Wastewater + Organic fertilizer (800 kg ha-1) + Remaining NPK from inorganic fertilizer. It was observed that integrated use of organic and inorganic fertilizer (800 kg ha-1 organic and remaining of recommended dose from inorganic fertilizer + effluent water) enhanced the growth and yield of wheat crop. In a study found that the use of organic fertilizer could help mitigate the negative impact of textile effluent water on wheat growth.
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Priyana, Efta Dhartikasari, Eko Budi Leksono, and Said Salim Dahda. "Development Of Granule Form Making Fertilizers In Muhammadiyah 3 Morowudi Gresik Vocational School." INNOVATION RESEARCH JOURNAL 1, no. 2 (2020): 93. http://dx.doi.org/10.30587/innovation.v1i2.1923.

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Fertilizer is the most important thing in terms of caring for plant growth. This was identified because fertilizer has nutrient mineral elements which are really needed by the plants themselves. Fertilizer itself is divided into organic and inorganic fertilizers. Still related to the type of fertilizer itself, in order to get plants with good quality and cultivation, the fertilizer given must be balanced because it is in line with the contents that exist in each type of fertilizer. Inorganic fertilizer or better known as chemical fertilizer is more popular with many people because of its practicality, but it should be remembered that excessive use of chemical fertilizers also have a negative impact on soil fertility. Therefore organic fertilizer still plays a role in the field of inorganic fertilizer in order to offset the need for soil itself. Understanding the importance of a balance between organic and inorganic fertilizers, the community service conducted by providing training in making Guano fertilizer at SMK Muhammadiyah 3 Morowudi Gresik was chosen to be applied. Guano fertilizer was chosen as an alternative to the addition of a companion formula rather than inorganic fertilizer because of its content which is rich in nitrogen, phosphorus, postasium which is needed by plants. Efforts to provide training to students of SMK Muhammadiyah 3 Morowudi Gresik are also expected to be able to boost cooperation than the students themselves in developing their potential to contribute to the community and schools
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Khanom, S., BK Saha, MT Islam, and MAH Chowdhury. "Influence of Organic and Inorganic Fertilizers on the Growth, Leaf Yield, Chlorophyll and Protein Contents of Stevia Grown in Different Soil Types." Progressive Agriculture 19, no. 1 (2013): 23–31. http://dx.doi.org/10.3329/pa.v19i1.16986.

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A pot experiment was conducted in the open net house of the Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh from January to June, 2007, to study the effect of organic and inorganic fertilizers on the growth, leaf yield, chlorophyll and protein contents of Stevia rebaudiana (Bert.). The experiment was laid out in completely randomized design with three replications having 16 treatment combinations. Four types of soil viz., saline, acidic, calcareous and non-calcareous soils were collected from Khulna, Tangail, Natore and Mymensingh districts of Bangladesh, respectively. Two organic (poultry manure and cow dung) and one inorganic fertilizers @ the recommended dose along with a control were used as treatment factor. The experimental results indicated that different soil types significantly influenced all parameters studied. The highest values of all parameters were obtained from the plant grown in noncalcareous soil which was identical with acidic soil for some parameters. Different types of organic and inorganic fertilizer had also significant influence on all plant parameters. In all cases, the highest values were recorded from the plant fertilized with chemical fertilizers. Poultry manure and cow dung also showed identical results with chemical fertilizer in most cases. Interaction effect of different types of soil and fertilizer showed significant variation for most of the parameters studied except chlorophyll and protein contents. Plants grown in noncalcareous soil fertilized with chemical fertilizers exhibited the best performance in most of the cases. The overall results suggested that stevia can be cultivated in noncalcareous and acidic soils fertilized with chemical fertilizers along with poultry manure favoring the productivity of stevia.DOI: http://dx.doi.org/10.3329/pa.v19i1.16986 Progress. Agric. 19(1): 23 - 31, 2008
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Bakrie, Muchlis Muhammad, Iswandi Anas, Sugiyanta Sugiyanta, and Komaruddin Idris. "APLIKASI PUPUK ANORGANIK DAN ORGANIK HAYATI PADA BUDIDAYA PADI SRI (System of Rice Intensification)." Jurnal Ilmu Tanah dan Lingkungan 12, no. 2 (2010): 25. http://dx.doi.org/10.29244/jitl.12.2.25-32.

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<p>Excessive use of inorganic fertilizers mainly NPK causes soil degradation, environment pollution, decreases production, and reduces soil biological activity. System of rice intensification is one method of rice cultivation. SRI main principles are seed transplanting at young age (7-11 days old), transplanting use single seedling methode, seedlings at wide plant spacing ≥ 25x25 cm, intermittent irrigation and field conditions are not flooded, and reduction of chemical fertilizers and application of organic fertilizer. This research was conducted at Situgede Village, West Bogor District, Bogor. The research design was split plot randomized complete block design with three blocks. Two rice cultivation system as the main plot and five combinations of fertilizer application as sub plot. In the main plot consisted of two rice cultivation which is conventional and SRI while the subplot consisted of five combinations of fertilizer application is no fertilition, 100% inorganic fertilizers (Urea = 250 kg ha-1, SP-36 = 75 kg ha-1 and KCl = 50 kg ha-1), 75% inorganic fertilizers (Urea = 187 kg ha-1, SP-36 = 56.8 kg ha-1 and KCl = 37.5 kg ha-1) + 200 kg of bio-organicfertilizer, 50% inorganic fertilizers (Urea = 125 kg ha-1, SP-36 = 37.5 kg ha-1 and KCl = 25 kg ha-1) + 200 kg of bio-organicfertilizer and 50% inorganic fertilizers (Urea = 125 kg ha-1, SP-36 = 37.5 kg ha-1 and KCl = 25 kg ha-1). The results showed that SRI method produced maximum number of tillers higher that of 25.8 tillers/hill or an increase of 64.33% compared with conventional methods. Wet and dry shoot weight of wet and dry weight of root is greater in successive SRI method of 13.3%, 19.1%, 1.40% and 41.8% compared with the conventional method. The number of productive tillers, grain number/panicle, 1000 grains weight, root wet weight and dry grain at SRI method was higher than those in conventional method respectively 58.6%, 37.0%, 2.50%, 25.1% and 32.6%. The uptake of N and P in the SRI method higher at 72.0% and 100% compared to conventional method. Application 50% inorganic fertilizer + 200 kg bio-organic fertilizer, producing more fresh weight biomass, plant dry weight, wet weight and dry weight, number of productive tillers, 1000 grain weight respectively 13.9%, 42.0%, 49.8%, 74.0%, 10.7% and 2.48% compared with the dosage recommendations dose or 100% inorganic fertilizer. N, P and K uptake at 50% inorganic fertilizer + 200 kg of bio-organic fertilizer treatment higher (55.6%, 66.7% and 46.2%) than the full recommendation dose of inorganic fertilizer. Bio-organic fertilizer can be used as substitute of NPK fertilizer.<br />Keywords : Bio-organic fertilizer, inorganic fertilizer, System of Rice Intensification (SRI)</p>
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Dissertations / Theses on the topic "Inorganic fertilizer"

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Reid, Mary Elizabeth. "Nitrate potential from sludge and inorganic fertilizer in soil leachate beneath an irrigated agricultural field." FIND on the Web, 1990.

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Reid, Mary Elizabeth 1943. "Nitrate potential from sludge and inorganic fertilizer in soil leachate beneath an irrigated agricultural field." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/192052.

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Two sets of continuous deep soil cores were removed from a 4 hectare field during the third year of crop treatment. Samples were removed once following sludge addition and once 6 weeks later following inorganic fertilizer application and a 30 cm pre-planting irrigation. A total of 504 soil samples were analyzed for soil texture, gravimetric moisture content, electrolytical conductivity, and pH, as well as concentrations of NO₃ , Cl⁻ , NO₂, and organic C. After three annual sludge applications, soil beneath plots amended with sludge, had higher average water-extractable NO3 concentration than plots amended with inorganic fertilizer. From one sampling date to the next, the field-averaged concentration of NO₃ increased from 282 mg 1⁻¹ to 335 mg 1⁻¹ . Results suggest a trend of increasing NO₃ in the vadose zone.
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Van, der Ham Ilana. "The effect of inorganic fertilizer application on compost and crop litter decomposition dynamics in sandy soil." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97109.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Inorganic fertilizer applications are common practice in commercial agriculture, yet not much is known regarding their interaction with organic matter and soil biota. Much research has been done on the effect of inorganic N on forest litter decomposition, yet very little research has focused on the effect of inorganic fertilizers on crop litters and, to our knowledge, none on composted organic matter. Furthermore none of the research has been done in South Africa. The main aim of this research project was to determine the effect of inorganic fertilizer applications on the decomposition of selected organic matter sources commonly used in South African agriculture and forestry. Two decomposition studies were conducted over a 3-month period, one on composts and the other on plant litters, using a local, sandy soil. In the first experiment a lower quality compost, compost A (C:N ratio, 17.67), and higher quality compost, compost B (C:N ratio, 4.92) was treated with three commercially used fertilizer treatments. Two were typical blends used for vegetable (tomato and cabbage) production: tomato fertilizer (10:2:15) (100 kg N, 20 kg P, 150 kg K per ha) and cabbage fertilizer (5:2:4) (250 kg N, 100 kg P, 200 kg K per ha). The third fertilizer blend, an equivalent mass application of N and P applied at 150 kg of each element per ha, is more commonly used in pastures. In the second experiment, five commonly encountered crop and forestry litters, namely kikuyu grass, lucerne residues, pine needles, sugar cane trash and wheat straw, were selected to represent the labile organic matter sources. The litters were treated with the tomato and cabbage fertilizer applications rates. Both decomposition experiments were conducted under ambient laboratory conditions at field water capacity. Decomposition rates were monitored by determining CO2 emissions, DOC production, β-glucosidase and polyphenol oxidase activity (PPO). At the start and end of decomposition study, loss on ignition was performed to assess the total loss of OM. Based on the results obtained from these two experiments, it was concluded that the addition of high N containing inorganic fertilizers enhanced the decomposition of both composted and labile organic matter. For both compost and plant litters, DOC production was greatly enhanced with the addition of inorganic fertilizers regardless of the organic matter quality. The conclusion can be made that inherent N in organic matter played a role in the response of decomposition to inorganic fertilizer application with organic matter low in inherent N showing greater responses in decomposition changes. For labile organic matter polyphenol and cellulose content also played a role in the responses observed from inorganic fertilizer applications.<br>AFRIKAANSE OPSOMMING: Anorganiese kunsmis toedieningss is algemene praktyk in die kommersiële landbou sektor,maar nog min is bekend oor hul interaksie met organiese materiaal en grond biota. Baie navorsing is reeds oor die uitwerking van anorganiese N op woud en plantasiereste se ontbinding gedoen. Baie min navorsing het gefokus op die uitwerking van anorganiese kunsmis op die gewasreste en tot ons kennis, is daar geen navorsing gedoen op die invloed van anorganiese kunsmis op gekomposteer organiese material nie. Verder is geeneen van die navorsing studies is in Suid-Afrika gedoen nie. Die hoofdoel van hierdie navorsingsprojek was om die effek van anorganiese kunsmis toedienings op die ontbinding van geselekteerde organiese materiaal bronne, wat algemeen gebruik word in die Suid-Afrikaanse landbou en bosbou, te bepaal. Twee ontbinding studies is gedoen oor 'n 3-maande-tydperk, een op kompos en die ander op die plantreste, met die gebruik van 'n plaaslike, sanderige grond. In die eerste eksperiment is ‘n laer gehalte kompos, kompos A (C: N verhouding, 17.67), en 'n hoër gehalte kompos, kompos B (C: N verhouding, 4.92) met drie kommersieel anorganiese bemesting behandelings behandel. Twee was tipiese versnitte gebruik vir die groente (tamatie en kool) produksie: tamatie kunsmis (10: 2:15) (100 kg N, 20 kg P, 150 kg K per ha) en kool kunsmis (5: 2: 4) (250 kg N, 100 kg P, 200 kg K per ha). Die derde kunsmis versnit was 'n ekwivalente massa toepassing van N en P van 150 kg van elke element per ha, wat meer algemeen gebruik word in weiding. In die tweede eksperiment was vyf algemeen gewas en bosbou reste, naamlik kikoejoegras, lusern reste, dennenaalde, suikerriet reste en koring strooi, gekies om die labiele organiese materiaal bronne te verteenwoordig. Die reste is met die tamatie en kool kunsmis toedienings behandel. Beide ontbinding eksperimente is uitgevoer onder normale laboratorium toestande by veldwaterkapasiteit. Ontbinding tempo is deur die bepaling van die CO2-vrystellings, opgelosde organiese koolstof (OOK) produksie, β-glukosidase en polifenol oksidase aktiwiteit (PPO) gemonitor. Aan die begin en einde van ontbinding studie, is verlies op ontbranding uitgevoer om die totale verlies van OM te evalueer. Gebaseer op die resultate van hierdie twee eksperimente, was die gevolgtrekking dat die toevoeging van hoë N bevattende anorganiese bemestingstowwe die ontbinding van beide komposte en plant reste verhoog. Vir beide kompos en plantreste word OOK produksie verhoog met die toevoeging van anorganiese bemesting, ongeag van die organiese materiaal gehalte. Die gevolgtrekking kan gemaak word dat die inherente N in organiese materiaal 'n rol gespeel het in die reaksie van ontbinding op anorganiese bemesting toedienings met die grootste reaksie in organiese material laag in inherente N. Vir labiele organiese material het polifenol en sellulose inhoud ook 'n rol gespeel in die reaksie waargeneeming op anorganiese bemesting.
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Herman, Melissa. "Inorganic fertilizer vs. cattle manure as nitrogen sources for maize (Zea mays L.) in Kakamega, Kenya." Connect to resource, 2009. http://hdl.handle.net/1811/37260.

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Wolterson, Eveline Valerie. "The effects of poultry manure versus inorganic fertilizer use on copper, manganese and zinc concentrations on soils under raspberry cultivation." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/29340.

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The effects of poultry manure versus inorganic fertilizer use on copper, zinc and manganese concentrations and the sustainability of metal contents under raspberry cultivation was investigated on two aeolian soils in the Lower Fraser Valley, British Columbia. Total elemental analysis by a teflon bomb procedure using reverse aqua regia and hydrofluoric acid was done on soils sampled at three depths (0-15 cm, 15-30 cm and +40 cm) and results were compared to metal contents extracted by the Mehlich III method. High variability of some of the soil data was attributed to mixing of the loess capping with the underlying glacio-fluvial outwash material, differences in site conditions of the test fields, variations in sampling depth, and inadequate analytical reproducibility at the low concentrations found in some of the soils. For the variables tested, differences between sites most often occurred in the first 30 cm and never at the +40 cm depth. Higher contents in the 0-30 cm depth than in the lower depths indicated an enrichment of the surface layers either by anthropogenic inputs or by bioaccumulation. Poultry manure applications had a significant effect on organic matter content, total and available manganese, and total and available zinc in both soils studied. The comparison of the manured versus the inorganically fertilized site indicated that zinc was the metal most effected by the manure application. The other metals were not significantly increased by poultry manure amendments. The comparison of the site that had been under long-term raspberry cultivation against the site that had been only recently converted to raspberries from long-term pasture cover, showed that long-term raspberry cultivation reduced metal and organic matter contents in the 0-15 cm depth and increased these variables in the 15-30 cm depth. It was hypothesised that this was in direct response to differing biocycling patterns under different land uses. Total and available manganese and zinc were strongly interconnected and their correlation to the organic matter content appeared most interesting in terms of fluxes between the various soil components. inorganically fertilized site indicated that zinc was the metal most effected by the manure application. The other metals were not significantly increased by poultry manure amendments. The comparison of the site that had been under long-term raspberry cultivation against the site that had been only recently converted to raspberries from long-term pasture cover, showed that long-term raspberry cultivation reduced metal and organic matter contents in the 0-15 cm depth and increased these variables in the 15-30 cm depth. It was hypothesised that this was in direct response to differing biocycling patterns under different land uses. Total and available manganese and zinc were strongly interconnected and their correlation to the organic matter content appeared most interesting in terms of fluxes between the various soil components.<br>Land and Food Systems, Faculty of<br>Graduate
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Guaya, Caraguay Diana Elizabeth. "Evaluation of phosphate and ammonium removal and valorization from urban waste waters by impregnated metal hydrated oxides inorganic natural zeolites." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/461091.

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Phosphate and ammonium removal from waste water by adsorption using inorganic natural sorbents has been identified as a promising technology. The advantages of this methodology are associated with its availability and effective low cost. Some natural and synthetic zeolite materials have been used for the individual phosphate and ammonium removal from aqueous solutions. The zeolites revealed high affinity for ammonium removal. However, some modifications stages are indispensable to enhance their oxyanionic sorption capacity to achieve high phosphate removal ratios. So, it is highly desirable to obtain a single sorbent for both cation and anion removal capacity from aqueous solutions. For this purpose, a natural zeolite with clinoptilolite as major mineral phase, was impregnated with metallic oxyhydroxides after conversion to the sodium form. As a result, hydrated metal oxides (HMO) of Al, Fe and Mn were immobilized on the zeolite surface structure. The efficiency of aluminium, iron and manganese hydrated metal oxides was individually evaluated for the simultaneous phosphate and ammonium removal from aqueous solutions through batch and continuous mode assays using a granular natural zeolite sample. High selectivity was developed by modified zeolites towards these species in the presence of competing ions commonly present in urban and industrial waste waters. The regeneration assays demonstrated the limited use of modified zeolites in operational cycles as losses of the hydrated metal oxide along within the operation cycles will require re-impregnation stages. Then, an alternative option for final valorization of ammonium and phosphate is the use of the loaded zeolites as soil amendment for agricultural and forestry purposes or for environmental rehabilitation of degraded soils. Therefore, a second approach could be to use the impregnated zeolites as nutrients carriers, improving their fertilizing properties by including potassium. For this purpose, powder samples of the natural zeolite in the potassium form were impregnated with the metallic oxyhydroxides and were enriched on nutrients (N,P,K) by using treated waters from the secondary effluent from "El Prat" Waste Water Treatment Plant using batch mode assays. The N-P-K release rates of the enriched zeolite samples were determined by column test using mixtures with three different types of agricultural soils.<br>La recuperación de fosfato y amonio de agua residual mediante adsorción usando adsorbentes inorgánicos naturales ha sido identificado como una tecnología muy prometedora. Las ventajas de esta metodología se asocian a la amplia disponibilidad de adsorbentes de este tipo y su bajo costo. Algunos materiales zeolíticos naturales y sintéticos han sido usados para la adsorción individual de fosfato y amonio de soluciones acuosas. Las zeolitas revelan alta afinidad para la adsorción de amonio. Sin embargo, algunas etapas de modificación son indispensables para incrementar la capacidad de adsorción oxianiónica y conseguir altas tasas de adsorción de fosfato. Entonces, resulta conveniente obtener un solo adsorbente para la adsorción simultánea de cationes y aniones de soluciones acuosas. Con este propósito, una zeolita natural que contiene clinoptilolita como mayor fase mineralógica, se impregnó con hidróxidos metálicos después de su conversión a la forma sódica. Como resultado, los óxidos metálicos hidratados (HMO) de Al, Fe and Mn fueron inmovilizados en la superficie de la estructura zeolítica. La eficiencia de los óxidos metálicos hidratados de aluminio, hierro y manganeso fue evaluada individualmente para la adsorción simultánea de fosfatos y amonio de soluciones acuosas mediante ensayos por lotes y en continuo usando una zeolita en forma granular. Una alta selectividad fue demostrada por parte de las zeolitas modificadas respecto a la adsorción de estas especies en presencial de iones competidores comúnmente existentes en aguas residuales urbanas e industriales. Los ensayos de regeneración demostraron el uso limitado de las zeolitas modificadas en continuo así como también la pérdida de los óxidos metálicos hidratados con cada ciclo de operación puesto que requiere de una nueva impregnación en cada etapa. Entonces, una opción alternativa para la final valorización de fosfato y amonio es el uso de las zeolitas saturadas como material de mejoramiento de suelos con propósitos agrícolas o también para la rehabilitación de suelos degradados. Es así que se evidencia una oportunidad en el uso de zeolitas impregnadas como transportadores de nutrientes, de tal forma que mejoren las propiedades fertilizantes mediante la inclusión de potasio. Para cumplir con este objetivo, la zeolita natural en polvo se impregnaron con oxihidróxidos metálicos que fueron enriquecidos con nutrientes esenciales (N, P, K) usándolas para tratar aguas residuales provenientes de efluentes secundarios, específicamente de la Planta de Tratamiento de Agua Residual "El Prat" usando ensayos por lotes. Las tasas de liberación de N-P-K de las zeolitas enriquecidas se determinaron mediante pruebas en columna usándolas como aditivos en tres tipos diferentes de suelos agrícolas.
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Frimpong, Kwame Agyei. "N2O emission and inorganic N release following combined application of crop residues and inorganic N fertiliser into soil." Thesis, University of Aberdeen, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540326.

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Experiments were conducted at the University of Aberdeen under controlled laboratory conditions to examine the interactive effect of combining crop residues barley (<i>Hordeum vulgare</i>), clover <i>(Trifolium pretense)</i>, cowpea (<i>Vigna unguiculata</i>), <i>Leucaena (Leucena leucocephala</i>) and <i>Mucuna (Mucuna pruriens)</i> and inorganic N fertiliser on N<sub>2</sub>O emission and mineral N dynamics. Emissions of N<sub>2</sub>O increased following sole application of the residues dependent on their utility or chemical composition. In general emissions were significantly higher from soils amended with low C:N ratio clover, cowpea, <i>Leucena </i>and <i>Mucuna </i>residues compared to the high C:N ratio barley species. N<sub>2</sub>O emission was further increased following combined application of crop residues and inorganic N fertiliser but the magnitude of emission was influenced by the proportional ratios at which the residue-N and the fertiliser-N were combined, and the C:N ratio, lignin and polyphenols contents of the residues, with the low lignin and low polyphenols cowpea treatment emitting higher N<sub>2</sub>O over 30 days compared to the high lignin <i>Mucuna </i>and the  high polyphenols <i>Leucena </i>treatments. Results from experiments demonstrated that whilst there is the potential for N<sub>2</sub>O emission to be controlled through varying ratios of residue:fertiliser input, the magnitude and direction of interactions between these N sources varies between different species as a result of their differing qualities. Based on our applications of <i>Leucaena, Mucuna </i>and cowpea residues, the 75:25 residue: fertiliser ratio at 100 mg N kg<sup>-1</sup> soil is recommended from this study as offering the best compromise between release of N for crop uptake and management of N<sub>2</sub>O emission, but this requires further investigation at field scale.
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Carefoot, Janna. "Phosphorous leaching from coarse-textured soils amended with inorganic or organic fertilizers." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33725.

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Non-point source pollution of surface waters with phosphorous (P) transported from agricultural soils has emerged as a major environmental issue in the last decade. Regulations limiting P accumulation in surface soils have been established to protect surface water quality. Yet, little information is available on the quantities of P that may leach through soils and the factors influencing P leaching in agricultural soils. One important factor may be the type of fertilizer P applied, since it is known that P solubility varies among fertilizer sources. The purpose of this thesis was to quantify P leaching in soils amended with inorganic and organic fertilizers.<br>In a field study, we found that the fertilizer P source (triple superphosphate, composted cattle manure, or a mixture of the two) did not affect soil test P concentration, the degree of soil P saturation, or P leaching in a sandy-loam soil. The soil test P level in the 0--15-cm depth (146 mg P kg -1) exceeded the critical limit of 66-mg kg-1 established in Quebec, and ortho-P and DOP concentrations in leachates collected from piezometers were generally higher than the provincial water quality standard of 0.03 mg P L-1. If transported from our study site, P leached through this coarse-textured soil could pose a threat to groundwater and surface water quality.<br>These findings were verified in the laboratory with two coarse-textured soils. We found that more NO3-N and DON were leached from soils receiving inorganic N and P fertilizers than composted cattle manure, but the amounts of ortho-P and DOP leached were not affected by fertilizer sources. In coarse-textured soils, the quantities of P leached can be substantial, but depends more on soil characteristics than the fertilizer P source.
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Hart, R. "The potential use of synthetic faujasite zeolites as slow release ammonium and potassium fertilizers." Thesis, City University London, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375831.

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Ndiaye, Mamadou. "Contribution des légumineuses arbustives à l'alimentation azotée du maïs (Zea mays l. ) : cas d'un système de culture en allées dans le centre-sud Sénégal." Vandoeuvre-les-Nancy, INPL, 1997. http://docnum.univ-lorraine.fr/public/INPL_T_1997_NDIAYE_M.pdf.

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L’objectif de la présente étude est de développer un système agroforestier dans lequel l'arbre fixateur de N2 est utilisé, via les émondes, comme alternative à l'engrais pour la fertilisation du maïs. La démarche scientifique met en œuvre la méthodologie azote-15 et comprend trois phases: (ii) une phase de diagnostic en milieu réel de la fixation de N2 (ii) une phase de caractérisation, en milieux contrôlé, des émondes et de quantification de leur contribution à la nutrition azotée du maïs (iii) une phase de quantification, en milieu réel, des contributions du sol, des émondes et de l'engrais à l'alimentation azotée du maïs. Nous mettons en évidence un seuil de pluviométrie au-dessous duquel la fixation réelle de N2 (FRN) est faible, et montrons que l'inoculation de bradyrhizobium permettrait de lever cette contrainte. Deux caractéristiques des émondes: l'une de capacité (N biodegradable) et l'autre de cinétique (demi-vie) sont mesurées au laboratoire et validées au champ ; elles permettent de déboucher sur un modèle de prévision de l'offre en N. Par la suite, nous développons un modèle d'optimisation des dates de semis du maïs et d'émondage de l'arbre qui permet d'ajuster l'offre à la demande. Les contributions de l'engrais, du sol et des émondes à la nutrition azotée de la céréale sont déterminées. Parmi celles-ci, la contribution de la FRN, via les émondes, rend compte du rôle de la FRN dans la durabilité du système agroforestier. L’indice de surface équivalente (ISE) de la culture en couloir est 0,90 et 1,60, respectivement, dans le cas d'une culture pure de mais avec engrais et dans celui de la culture pure de maïs sans engrais. Le système agroforestier proposé est performant et exige peu d'intrants couteux. Dans la pratique, il reste à franchir une étape essentielle: la mise en œuvre de ce système en fonction de la diversité des exploitations et des contraintes socio-économique
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Books on the topic "Inorganic fertilizer"

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Ki-hwan, Pak. Mugijil piryo sanŏp ŭi tonghyang kwa palchŏn pangan: Konggŭp ch'egye kaesŏn pangan ŭl chungsim ŭro = Inorganic fertilizer industry trend and development plan : Focusing on improving the supply system. Han'guk Nongch'on Kyŏngje Yŏn'guwŏn, 2012.

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Parnes, Robert. Organic & inorganic fertilizers. Woods End Agricultural Institute, 1986.

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Parnes, Robert. Fertile soil: A grower's guide to organic & inorganic fertilizers. 2nd ed. AgAccess, 1990.

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Scott, H. D. Fate of inorganic nitrogen and phosphorus in broiler litter applied to tall fescue. Agricultural Experiment Station, Division of Agriculture, University of Arkansas, 1995.

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Kaizzi, Kayuki Crammer. The potential benefit of green manures and inorganic fertilizers in cereal production on contrasting soils in eastern Uganda. Cuvillier Verlag, 2002.

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Acharya, G. P. Nitrogen use efficiency on wheat with combination of organic/inorganic fertilizers and legume inter-cropping for increased production and income. Agricultural Research Station, Lumle, 1999.

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Liverpool-Tasie, Lenis Saweda O., Bolarin T. Omonona, Awa Sanou, and Wale Ogunleye. Is Increasing Inorganic Fertilizer Use in Sub-Saharan Africa a Profitable Proposition? Evidence from Nigeria. The World Bank, 2015. http://dx.doi.org/10.1596/1813-9450-7201.

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Zegeye, Tesfaye, Ethiopian Agricultural Research Organization, and International Maize and Wheat Improvement Center., eds. Adoption of improved bread wheat varieties and inorganic fertilizer by small-scale farmers in Yelmana Densa, and Farta Districts of northwestern Ethiopia. Ethiopian Agricultural Research Organization, 2001.

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Msuya, Elibariki E., Aida Cuthbert Isinika, and Fred Mawunyo Dzanku. Agricultural Intensification Response to Agricultural Input Subsidies in Tanzania: A Spatial-Temporal and Gender Perspective, 2002–15. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198799283.003.0006.

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In Tanzania, structural adjustment policies implemented during the 1980s removed all agricultural subsidies. However, declining productivity and production of maize and rice—the main food crops—forced the government to restore subsidies in 2003. This chapter examines the impact of the agricultural input subsidy programme, looking at farmers’ response to subsidized inorganic fertilizer and improved maize and rice seed—discerning gender and temporal impacts. Farmers in Iringa and Morogoro were highly responsive to the fertilizer and seed components of the input subsidy, and their response was sensitive to the magnitude of the subsidy. Farmers in Morogoro were less responsive to both technologies due to dominance of rice production. Adoption was lower for female-managed farms, with corresponding lower livelihood outcomes, attributed to lower resource endowment. It is therefore recommended that underperforming farmers, including female farm manages in lower wealth ranks, required initiative to improve their productivity and production.
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Brubaker, Kenton K. Understanding Organic and Inorganic Fertilizers (Understanding Technology Series). Vita Pubns, 1985.

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Book chapters on the topic "Inorganic fertilizer"

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Sahrawat, Kanwar L., Mark K. Abekoe, and Sitapha Diatta. "Application of Inorganic Phosphorus Fertilizer." In Sustaining Soil Fertility in West Africa. Soil Science Society of America and American Society of Agronomy, 2015. http://dx.doi.org/10.2136/sssaspecpub58.ch11.

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Yli-Halla, Markku. "Fate of Fertilizer P in Soils: Inorganic Pathway." In Phosphorus in Agriculture: 100 % Zero. Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7612-7_3.

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Bhardwaj, Deepesh, and Radha Tomar. "Use of Surface Modified Inorganic Nano Materials as Slow Release Nitrogen Fertilizer." In Sustainable Agricultural Development. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0519-7_12.

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Shevah, Y., and M. Waldman. "Advances in Management of Fertilizer Application and the Resulting Effect on the Pollutant Load in Soil." In Inorganic Contaminants in the Vadose Zone. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74451-8_12.

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Rashmi, I., Trisha Roy, K. S. Kartika, et al. "Organic and Inorganic Fertilizer Contaminants in Agriculture: Impact on Soil and Water Resources." In Contaminants in Agriculture. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-41552-5_1.

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Paz, Carlota Garcia, Teresa Taboada Rodríguez, Valerie M. Behan‐Pelletier, et al. "Fertilizers, Inorganic." In Encyclopedia of Soil Science. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-3995-9_223.

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Tankari, Mahamadou Roufahi. "Chapter 5. Gender parity and inorganic fertilizer technology adoption in farm households: evidence from Niger." In Fostering transformation and growth in Niger’s agricultural sector. Wageningen Academic Publishers, 2018. http://dx.doi.org/10.3920/978-90-8686-873-5_5.

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Soler, J. Soler, and J. Soler Rovira. "Cadmium in inorganic fertilizers." In Fertilizers and Environment. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1586-2_95.

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Mortvedt, J. J. "Heavy metal contaminants in inorganic and organic fertilizers." In Fertilizers and Environment. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1586-2_2.

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Ratna, Nurhayati Dewi, Aris Eddy Sarwono, and Budi Hariyono. "The Effect of Organic and Inorganic Fertilizer on Production, Sesame Seed Oil Content, and Feasibility in Sandy Coastal Land." In Food Security and Food Safety for the Twenty-first Century. Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-417-7_11.

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Conference papers on the topic "Inorganic fertilizer"

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Zhang, Enze, Lijin Lin, Ji Liu, Yanhong Li, Wei Jiang, and Yi Tang. "The effects of organic fertilizer and inorganic fertilizer on yield and quality of lettuce." In 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017). Atlantis Press, 2017. http://dx.doi.org/10.2991/iceesd-17.2017.165.

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Lian, Huashan, Liying Ouyang, Ji Liu, Liqiong Yang, and Panhong Zou. "Effects of different proportions of inorganic fertilizer and organic fertilizer on yield and quality of amaranth." In 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017). Atlantis Press, 2017. http://dx.doi.org/10.2991/iceesd-17.2017.166.

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Aninkan, Anjola S., and Eyitayo A. Makinde. "Fertilizer Rate for Optimum Growth and Yield of Egusi Melon (ColocynthiscitrullusL.)/ Hot Pepper (Capsicum chinense, Jackquin cv. rodo) Intercrop." In International Students Science Congress. Izmir International Guest Student Association, 2021. http://dx.doi.org/10.52460/issc.2021.005.

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The use of chemical fertilizers as a supplemental source of nutrients has been on the increase but they are not applied in balanced proportion by most farmers [1]. Also, fertilizer requirements of the mixed intercropping systems have been a matter of conjecture; some studies had suggested that fertilizer requirements of the dominant component be applied [2], others recommend that the sum of the sole crop requirements, be applied [3]. Teriah [4], however, stated that both practices have proved either inadequate or wasteful. In this experiment the effects of different rates of NPK 15-15-15 fertilizer application on growth and yield of hot pepper and Egusi melon in an intercropping system was examined to determine optimum rate for production. The experiment was carried out at the Teaching and Research Farm of the Federal University of Agriculture Abeokuta, in the south western part of Nigeria. It took place from March to October 2017 during the growing season. The experiment was laid out in a Randomized Complete Block Design (RCBD) with 5 treatments (fertilizer rates) and 3 replicates. Treatments were; 0, 100, 200, 300 and 400 kg/ha of NPK 15-15-15 applications. Plot size was 3m by 3m with a 1.5m gang way round each plot to reduce inter-plot effect. Data were collected on growth parameters at 6 weeks after treatment (WAT) and continued at two-week intervals until 10 WAT. Four plants each of pepper and Egusi melon from the inner rows were randomly selected and tagged for the purpose of data collection. Data on yield were also collected at ripening. Analysis of variance (ANOVA) was carried out on each observation and the Least Significant Difference (LSD) was used for means separation (P≤0.05). The effects of fertilizer rates showed significant difference on pepper plant height, number of leaves, number of branches and leaf area. However, there was no significant difference in the effect of fertilizer rate on days to 50% flowering of pepper. Number of vines and vine length of Egusi melon were significantly different in their responses to fertilizer rates but the leaf area and days to 50% flowering of melon were similar at the various treatment levels. Meanwhile, total fruit yield of pepper, number of Egusi melon pods per hectare and the dry matter yield of Egusi melon showed significant difference. It was concluded from the study that the growth and yield of pepper and Egusi melon in intercrop increased with increase in fertilizer rate up to 400Kg/ha of NPK (15:15:15). However, higher fertilizer application rates should be explored in future studies for a better yield increase. These studies should be carried out with various compositions of inorganic and organic fertilizer application rates to ensure sustainable fertilizer application and to also preserve the natural fertility of the soil.
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Wiyantoko, Bayu, Muzdalifah Muzdalifah, Puji Kurniawati, and Tri Esti Purbaningtias. "Validation on analysis method for phosphorus in solid inorganic fertilizer using UV-visible spectrophotometry." In 2ND INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE). Author(s), 2018. http://dx.doi.org/10.1063/1.5065005.

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Fawwaz, D. N., M. A. E. Rahadianto, D. Aulia, M. I. Putra, K. K. A. Brennaf, and A. Afiat. "Inorganic Fertilizer Residue Indication on Cinchona Plantation Soil Using Resistivity Method with Flat Base Electrodes." In EAGE-HAGI 1st Asia Pacific Meeting on Near Surface Geoscience and Engineering. EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201800449.

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Ohu, John O., and Eli E. Mamman. "Capillary Movement of Water in Two Agricultural Soils Incorporated with Inorganic Fertilizer after Load Application." In 2017 Spokane, Washington July 16 - July 19, 2017. American Society of Agricultural and Biological Engineers, 2017. http://dx.doi.org/10.13031/aim.201700482.

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Sunarpi, Haji, Sonia Ardilla Pebriani, Yogi Ambana, et al. "Effect of inorganic fertilizer and brown alga solid ectract on growth and yield of rice plants." In PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5141320.

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Sutami, R. Rosariastuti, and Purwanto. "Remediation of Lead Contaminated Paddy Field Using Ramie Plants Combined with Bioremediation Agents and Inorganic Fertilizer." In 10th International Seminar and 12th Congress of Indonesian Society for Microbiology (ISISM 2019). Atlantis Press, 2021. http://dx.doi.org/10.2991/absr.k.210810.035.

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C S Tan, T Q Zhang, and T W Welacky. "Comparison of Organic Fertilizer with Solid and Liquid Manures vs. Inorganic Fertilizer on Water Quality and Crop Production under Free Drainage and Water Table Control Systems." In 2011 Louisville, Kentucky, August 7 - August 10, 2011. American Society of Agricultural and Biological Engineers, 2011. http://dx.doi.org/10.13031/2013.37737.

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Lukiwati, Dwi Retno, Florentina Kusmiyati, and Bagus Herwibawa. "EFFECT OF MANURE PLUS AND INORGANIC FERTILIZER ON MAIZE PRODUCTION AND NUTRIENT UPTAKE IN CENTRAL JAVA INDONESIA." In International Conference on Agriculture. The International Institute of Knowledge Management - TIIKM, 2019. http://dx.doi.org/10.17501/26827018.2018.5101.

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Reports on the topic "Inorganic fertilizer"

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Policy Support Activity, Myanmar Agriculture. The outlook for Myanmar’s inorganic fertilizer use and 2021 crop harvest: An ex-ante assessment. International Food Policy Research Institute, 2021. http://dx.doi.org/10.2499/p15738coll2.134368.

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