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Academic literature on the topic 'Ammonia as fertilizer'
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Journal articles on the topic "Ammonia as fertilizer"
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Chu, Haiyan, Takeshi Fujii, Sho Morimoto, et al. "Community Structure of Ammonia-Oxidizing Bacteria under Long-Term Application of Mineral Fertilizer and Organic Manure in a Sandy Loam Soil." Applied and Environmental Microbiology 73, no. 2 (2006): 485–91. http://dx.doi.org/10.1128/aem.01536-06.
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ABSTRACT The effects of mineral fertilizer (NPK) and organic manure on the community structure of soil ammonia-oxidizing bacteria (AOB) was investigated in a long-term (16-year) fertilizer experiment. The experiment included seven treatments: organic manure, half organic manure N plus half fertilizer N, fertilizer NPK, fertilizer NP, fertilizer NK, fertilizer PK, and the control (without fertilization). N fertilization greatly increased soil nitrification potential, and mineral N fertilizer had a greater impact than organic manure, while N deficiency treatment (PK) had no significant effect. AOB community structure was analyzed by PCR-denaturing gradient gel electrophoresis (PCR-DGGE) of the amoA gene, which encodes the α subunit of ammonia monooxygenase. DGGE profiles showed that the AOB community was more diverse in N-fertilized treatments than in the PK-fertilized treatment or the control, while one dominant band observed in the control could not be detected in any of the fertilized treatments. Phylogenetic analysis showed that the DGGE bands derived from N-fertilized treatments belonged to Nitrosospira cluster 3, indicating that N fertilization resulted in the dominance of Nitrosospira cluster 3 in soil. These results demonstrate that long-term application of N fertilizers could result in increased soil nitrification potential and the AOB community shifts in soil. Our results also showed the different effects of mineral fertilizer N versus organic manure N; the effects of P and K on the soil AOB community; and the importance of balanced fertilization with N, P, and K in promoting nitrification functions in arable soils.
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Mwafulirwa, Samuel. "Evaluation of Mbeya Based Organic Fertilizer on Maize Yield and Yield Components in Malawi." Asian Plant Research Journal 11, no. 2 (2023): 34–49. http://dx.doi.org/10.9734/aprj/2023/v11i2208.
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The recent boom in organic business in the name of Mbeya manure fertilizer has taken shape in commercialisation without government approval as several implications were at stake. Laboratory and field experiments were, therefore, conducted to ascertain the quality of the products with and without modifications. The original products, as proclaimed by suppliers, were evaluated against the control treatment of inorganic fertilizer and the modified products by the inclusion of specific microorganisms in solubilisation of fixed nutrients and oxidation of ammonia and nitrite. Field layout followed a Completely Randomized Block Design with three replications and 5 treatments viz Modified Funani Mbeya fertilizer, Modified Kambeu Mbeya fertilizer, Original Funani Mbeya fertilizer, Original Kambeu Mbeya fertilizer and the recommended inorganic fertilizer for Maize. Besides assessing the grain yield, biomass and nutrient bioavailability, the effect of the organic fertiliser on biostimulation was also studied in the rhizospheric soil. Results showed that there were no significant differences in grain yield and its components between Mbeya based organic fertilisers and inorganic fertilisers. However, maize yield and some parameters (environmental and nutrient content) were higher in modified organic fertiliser.
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Lee, Yeon-Jin, Eun-Chae Im, Sung-Chang Hong, and Seong-Jik Park. "Characteristics of Ammonia Emissions from the use of Compost manure and Composite Fertilizer in Upland Field." Journal of Korean Society of Environmental Engineers 45, no. 9 (2023): 388–99. http://dx.doi.org/10.4491/ksee.2023.45.9.388.
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Objectives : This study aimed to monitor ammonia volatilization in upland fields under different nitrogen fertilizer applications, comparing compost manure (CM) and composite fertilizer (CF) and investigate the environmental factors influencing ammonia volatilization.Methods : Ammonia was collected using the static chamber method in upland fields, and the soil analyses were conducted before and after ammonia volatilization monitoring. Pearson's correlation analysis and machine learning were utilized to determine the relationship between ammonia volatilization and environmental factors. Growth characteristics of harvested crops were analyzed, and Duncan analysis confirmed significant differences between nitrogen fertilizer treatments.Results and Discussion : In both CM and CF fertilized fields, there was no significant difference in ammonia volatilization. However, more ammonia volatilization was observed in the potato field compared to the Chinese cabbage field, attributed to higher NH<sub>4</sub><sup>+</sup>-N content in the soil of the potato field. Machine learning identified soil temperature and moisture as significant factors affecting ammonia volatilization. The analysis of crop growth revealed a positive effect of increased nitrogen fertilizer application. The result showed that single CM application was insufficient to meet crop nutrient demands.Conclusion : This study quantified ammonia emissions, identified influencing factors, and provided valuable data for enhancing fertilizer use efficiency and nitrogen management strategies in agriculture.
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KYDYRALIYEVA, Aziza D., Uilesbek BESTEREKOV, Aidarbek A. BОLYSBEK, Marina M. YESKENDIROVA, and Kinis N. URAKOV. "OPTIMIZATION OF AN NPK-FERTILIZER PRODUCTION TECHNOLOGY." Periódico Tchê Química 17, no. 35 (2020): 12–22. http://dx.doi.org/10.52571/ptq.v17.n35.2020.02_kydyraliyeva_pgs_12_22.pdf.
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Ammoniac saltpeter is the most widespread in the world and effective nitric fertilizer. However, ammonia saltpeter has a severe disadvantage – fire risk and explosion hazard that causes some difficulties and restrictions of both its consumers and its manufacturers. The purpose of the present work consisted in the studying the possibility of production of NPК-fertilizers with improved agrochemical properties and a controlled ratio of nutrients N/Р2О5/К2О produced based on an ammonia saltpeter solution, ground phosphate rock, and potassium chloride. The laboratory and industrial experiments were continued using a rotatable planning method – the Box-Hunter second-order modeling technique. The article contains the research results on the regulation of nutritious elements (N/(Р2О5+K2O)) ratios in the NPК-containing fertilizers produced based on an ammonia saltpeter solution, a ground phosphate rock, and potassium chloride. The effect of independent variables – specific consumptions of ammonia saltpeter, a ground phosphate rock, and potassium chloride – was studied. The adequate regression equation of influence of these factors on an N/(Р2О5+K2O) ratio in the end products was obtained. Boundary values of the ammonia saltpeter, a ground phosphate rock and potassium chloride specific consumptions in the initial mixtures were found at which the total content of nutritious elements in the target products is from 30% to 33% and the N/(Р2О5+K2O) ratio has the optimum value (1.14 - 3.50).
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Yaseen, Muhammad, Adeel Ahmad, Muhammad Naveed, et al. "Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization." Agronomy 11, no. 12 (2021): 2396. http://dx.doi.org/10.3390/agronomy11122396.
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Nitrogen (N) is an essential plant nutrient, therefore, N-deficient soils affect plant growth and development. The excessive and unwise application of N fertilizers result in nutrient losses and lower nutrient use efficiency that leads to the low crop productivity. Ammonia volatilization causes a major loss after N fertilization that causes environmental pollution. This experiment was conducted to evaluate the effectiveness of coating and uncoating N fertilizer in enhancing yield and nutrient-use efficiency with reduced ammonia emissions. The recommended rate of nitrogen and phosphorus, urea and di-ammonium phosphate (DAP) fertilizers were coated manually with 1% polymer solution. DAP (coated/uncoated) and potassium were applied at the time of sowing as subsurface application. While urea (coated/uncoated) was applied as surface and subsurface application. Results showed that nutrient use efficiencies of wheat were found to be maximum with the subsurface application of coated N fertilizer which increased nutrient-use efficiency by 44.57 (N), 44.56 (P) and 44.53% (K) higher than the surface application of uncoated N fertilizer. Ammonia emissions were found the lowest with subsurface-applied coated N fertilizer. Thus, coated fertilizer applied via subsurface was found the best technique to overcome the ammonia volatilization with an improvement in the yield and nutrient-use efficiency of wheat.
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Hu, Zhongze, Daliu Yang, Yaming Feng, et al. "Green manure combined with reduced nitrogen reduce NH3 emissions, improves yield and nitrogen use efficiencies of rice." PeerJ 12 (July 22, 2024): e17761. http://dx.doi.org/10.7717/peerj.17761.
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Background Green manure is an important source of organic fertilizer. Exploring green fertilizer and nitrogen fertilizer reduction is important for agricultural production. However, few studies have been conducted, especially on the effects of different green fertilizers along with reduced nitrogen fertilizer application on soil ammonia volatilization emissions, rice yield, and nitrogen fertilizer uptake and utilization. Methods In this study, the effects of different types of green manure and reduced nitrogen fertilizer application on soil ammonia volatilization emissions, aboveground population characteristics of rice, and nitrogen fertilizer uptake and utilization were explored. This study was based on a field-positioning experiment conducted between 2020 and 2022. Six treatments were established: no nitrogen fertilizer application (CK), conventional fertilization in wheat-rice (WR), villous villosa-rice (VvR), vetch sativa-rice (VsR), rapeseed seed-rice (RR), and milk vetch-rice (GR), with a 20% reduction in nitrogen fertilizer application. The amounts of phosphorus and potassium fertilizers remained unchanged. The characteristics of ammonia volatilization loss in rice fields, agronomic traits of rice, yield traits, and nitrogen uptake and utilization were investigated. Results The results indicated a significant difference (P < 0.05) in the impact of different treatments on ammonia volatilization emissions from rice in the two-year experiment. Compared with WR treatment, VvR, VsR, RR, and GR treatments reduced the total ammonia volatilization loss by 23.58 to 39.21 kg ha−1, respectively. Compared with the conventional WR treatment, other treatments increased rice yield by 0.09 to 0.83 t ha−1. GR treatment was significantly higher than other green fertilizer treatments, except for VsR (P < 0.05). It increased the nitrogen uptake of rice by an average of 4.24%–22.24% and 13.08%–33.21% over the two years, respectively. The impact of different types of green manure on the nitrogen uptake and utilization of rice varied greatly, indicating that the combination of green manure and fertilizer is a sustainable fertilization model for crops to achieve high yields. In particular, the Chinese milk vetch as green manure was more beneficial for ammonia volatilization reduction in paddy field and stable grain production of rice.
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Koestoer, Raldi H., Tri Ligayanti, Sutrasno Kartohardjono, and Harris Susanto. "Down-streaming Small-Scale Green Ammonia to Nitrogen-Phosphorus Fertilizer Tablets for Rural Communities." Emerging Science Journal 8, no. 2 (2024): 625–43. http://dx.doi.org/10.28991/esj-2024-08-02-016.
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This study aims to evaluate the growth and production of sweet corn plants in response to the application of commercial NPK fertilizer and various doses of nitrogen-phosphorus fertilizer tablets. From early October 2022 to late January 2023, research was conducted at Research and Development Luas Birus Utama to produce nitrogen-phosphorus fertilizer tablets and at Research and Development Syngenta Indonesia Cikampek Station, Karawang, to perform a semi-field analysis. A factorial randomized block design with two treatment factors was employed in this study. The first factor was five types of nitrogen-phosphorus fertilizer tablets, namely, A (0% nitrogen and 6.3% phosphorus), B (0.81% nitrogen and 6.3% phosphorus), C (1.57% nitrogen and 6.1% phosphorus), D (2.33% nitrogen and 6.2% phosphorus), and E (3.06% nitrogen and 6.2% phosphorus). The second factor was F (standard nitrogen, phosphorus, and potassium). The results revealed that applying different dosages of nitrogen-phosphorus fertilizer tablets in combination with potassium chloride fertilizer yielded no different effect on the growth, biomass, and yield components of sweet corn plants when compared to applying NPK fertilizer. A comparison between the soil test results before and after application revealed that the formulation of fertilizers in tablet form helps plants to effectively absorb the required nutrients. It is currently possible to develop small-scale or microscale green ammonia production technology to fulfill the fertilizer requirements of rural communities because of its low cost, low carbon emissions, and low renewable energy consumption. The scarcity of fertilizer supplies endangers Indonesia’s food sustainability. Nitrogen-phosphorus fertilizer tablet production technology can be used in areas with a scarcity of inorganic fertilizers but with the potential for low-grade phosphate mines using commercial ammonia solutions. Thus, understanding how to produce nitrogen-phosphorus fertilizer tablets from ammonia solution will aid in the acceptance of microscale green ammonia production technology. Doi: 10.28991/ESJ-2024-08-02-016 Full Text: PDF
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Majee, Subhasish, Gopinath Halder, R. N. Krishnaraj, and Tamal Mandal. "Development and Formulation of an Organic Fertilizer from Industrial and Agricultural Waste to Study the Growth of Marigold (Tagetes) Plant." International Journal of Mathematical, Engineering and Management Sciences 5, no. 3 (2020): 395–404. http://dx.doi.org/10.33889/ijmems.2020.5.3.033.
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The present study focused on the utilization of solid wastes viz. wet blue leather of leather industry, rice husk ash from rice mills, and water hyacinth in addition to a commercial steamed bone meal for the invention of nutrient-enriched organic fertilizer. To produce NPK organic fertilizer, chromium-free wet blue leather (WBL) as nitrogen source was amalgamated with rice husk ash, water hyacinth, and commercial steamed bone meal as a potassium and phosphorus source. The efficiency of such developed organic fertilizer designated as type I was tested as a nutrients source on the marigold plant. Ammonia analysis of fertilizer applied soil samples revealed that the content of liberated free ammonia in the soil fertilized with organic fertilizer was 44.80 %, 20.70 %, and 10.35% higher than the natural soil, chemically fertilized soil and fertilized with vermicompost respectively. Application of developed organic fertilizer and vermicompost designated as type II on marigold plant resulted in significant growth which are comparable to those obtained with commercial Chemical fertilizer. The plant growth increased by chemical fertilizer, Type I fertilizer, and Type II fertilizer in terms of plant height 26.5 %, 20 %, 22.7% and leaf size 21.2 %, 15.4 %, 17.3 % respectively which are observed to be higher than the growth of the control plant.
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Makaza, William, and Lotfi Khiari. "Too Salty or Toxic for Use: A Tale of Starter Fertilizers in Agronomic Cropping Systems." Agronomy 13, no. 11 (2023): 2690. http://dx.doi.org/10.3390/agronomy13112690.
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The rising shortage of fertilizer resources in crop-producing regions worldwide and the need for fertilizer use optimization to minimize the impact of salt injuries and ammonia toxicity are at the centre of a brewing storm call for sustainable fertilizer savings. The allocation of fertilizers will be an ever-increasing pressure source because of vast agricultural demands under changing climatic conditions. Therefore, starter fertilizers must complement their efficiency and aim to boost productivity and improve food quality to reduce its toxicities, and these observations are corroborated by an analysis of past and ongoing short-, medium-, and long-term experiments. Concurrently, to counterbalance nutrient uptake, fertilizing products containing select nutrients are commonly placed through soil–seed or soil–fertilizer–seed systems to enhance crop production and productivity. Knowledge of the importance of starter fertilizers and their implications as influenced by frequent environmental conditions and management practices remains essential for sustainable and socio-economics of human livelihoods and successful global agronomic food systems under climate change. Therefore, this review takes a closer look at the detailed starter fertilizers’ (N, P, and K) placement approaches exploring their implications on crop production cycles and integrating them with environmental and agronomic management practices that could help to tailor the appropriate fertilizer recommendations and minimise fertilizer toxicity. We explored the mechanisms by which fertilizer salt injury and ammonia toxicity interfere with the morpho-physiological and biochemical processes in most agronomic seed crops. Beyond this, we show the advances that have already been made, as well as suggestions and recommendations concerning managing fertilizer salt injuries and ammonia toxicity potentials in the agricultural industry.
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Han, Zhengdi, Huijing Hou, Xianzi Yao, Xiang Qian, Qin Tao, and Mingyao Zhou. "Effects of Bio-Organic Fertilizers Substitution on Gaseous Nitrogen Losses in Rice Fields." Water 16, no. 9 (2024): 1229. http://dx.doi.org/10.3390/w16091229.
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Traditional practices for managing irrigation and fertilizer in Chinese rice fields have historically consumed large amounts of water resources and caused serious gaseous nitrogen losses (ammonia volatilization and N2O), resulting in low water and fertilizer use efficiency. While both water-saving irrigation and substituting organic fertilizer for chemical fertilizer can impact ammonia volatilization and N2O emissions, the impact of their combined application on gaseous nitrogen loss in rice fields remains unclear. To achieve this goal, we conducted a two-year experiment using two irrigation methods and three bio-organic fertilizer substitution modes. The experiment investigated the effect of different irrigation and fertilizer management techniques on gaseous nitrogen losses in rice fields. The result indicated that controlled irrigation could reduce the peak value of ammonia volatilization by 36.8~75.9% and ammonia volatilization accumulation by 45.8%. However, it also leads to a 71.4% increase in N2O accumulation emissions, resulting in a 43.0% reduction in gaseous nitrogen losses. Compared to full chemical fertilizers, bio-organic fertilizer substitution could effectively reduce the peak of N2O and ammonia volatilization. Cumulative ammonia volatilization and N2O emissions went down by 22.7~60.0% and 38.6~42.6%, respectively. This then led to a 23.4~52.9% drop in total gaseous nitrogen losses. In contrast, the utilization of controlled irrigation and bio-organic fertilizer substitution did not have a significant impact on rice yield. However, it did reduce the intensity of gaseous nitrogen loss from rice fields by 42.7% and 22.5% to 56.5%, respectively. When taken together, the substitution of bio-organic fertilizer in controlled irrigation can effectively reduce gaseous nitrogen losses while maintaining rice yields. This study has significant practical implications for reducing nitrogen loss from paddy fields, improving water and fertilizer utilization, and achieving sustainable agricultural development.