Dual Functional Coatings for Urea to Reduce Ammonia Volatilization and Improve Nutrients Use Efficiency in a Brazilian Corn Crop System

2021 ◽  
Author(s):  
César Ferreira Santos ◽  
Ana Paula Pereira Nunes ◽  
Osnar Obede da Silva Aragão ◽  
Douglas Guelfi ◽  
André Alves de Souza ◽  
...  
Keyword(s):  
Ammonia Volatilization ◽  
Functional Coatings ◽  
Dual Functional ◽  
Corn Crop ◽  
Use Efficiency ◽  
Crop System

scholarly journals Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2396
Author(s):  
Muhammad Yaseen ◽  
Adeel Ahmad ◽  
Muhammad Naveed ◽  
Muhammad Asif Ali ◽  
Syed Shahid Hussain Shah ◽  
...  
Keyword(s):  
Ammonia Volatilization ◽  
Nutrient Use Efficiency ◽  
Ammonium Phosphate ◽  
Crop Productivity ◽  
N Fertilization ◽  
N Fertilizer ◽  
Ammonia Emissions ◽  
Nitrogen And Phosphorus ◽  
Nutrient Use ◽  
Use Efficiency

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.

scholarly journals No-tillage sorghum and garbanzo yields match or exceed standard tillage yields

2022 ◽  
pp. 112-120
Author(s):  
Jeffrey P. Mitchell ◽  
Anil Shrestha ◽  
Lynn Epstein ◽  
Jeffery A. Dahlberg ◽  
Teamrat Ghezzehei ◽  
...  
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Crop Production ◽  
Crop Yields ◽  
Soil Surface ◽  
San Joaquin Valley ◽  
Agricultural Water Use ◽  
No Till ◽  
Use Efficiency ◽  
Crop System

To meet the requirements of California's Sustainable Groundwater Management Act, there is a critical need for crop production strategies with less reliance on irrigation from surface and groundwater sources. One strategy for improving agricultural water use efficiency is reducing tillage and maintaining residues on the soil surface. We evaluated high residue no-till versus standard tillage in the San Joaquin Valley with and without cover crops on the yields of two crops, garbanzo and sorghum, for 4 years. The no-till treatment had no primary or secondary tillage. Sorghum yields were similar in no-till and standard tillage systems while no-till garbanzo yields matched or exceeded those of standard tillage, depending on the year. Cover crops had no effect on crop yields. Soil cover was highest under the no-till with cover crop system, averaging 97% versus 5% for the standard tillage without cover crop system. Our results suggest that garbanzos and sorghum can be grown under no-till practices in the San Joaquin Valley without loss of yield.

Bentonite hydrochar composites mitigate ammonia volatilization from paddy soil and improve nitrogen use efficiency

2020 ◽  
Vol 718 ◽  
pp. 137301 ◽  
Author(s):  
Qingnan Chu ◽  
Sheng Xu ◽  
Lihong Xue ◽  
Yang Liu ◽  
Yanfang Feng ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Paddy Soil ◽  
Ammonia Volatilization ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Integrated Soil–Crop System Management with Organic Fertilizer Achieves Sustainable High Maize Yield and Nitrogen Use Efficiency in Northeast China Based on an 11-Year Field Study

Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1078
Author(s):  
Yin Wang ◽  
Yaqi Cao ◽  
Guozhong Feng ◽  
Xiaoyu Li ◽  
Lin Zhu ◽  
...  
Keyword(s):  
Northeast China ◽  
Organic Fertilizer ◽  
Maize Yield ◽  
Organic Fertilizers ◽  
Agricultural System ◽  
System Management ◽  
Environmental Costs ◽  
Use Efficiency ◽  
Crop System

To increase crop productivity while reducing environmental costs, an integrated soil–crop system management (ISSM) strategy was developed and successfully adopted in China. However, little information is available on the long-term ISSM effects on maize agronomic and environmental performance. Therefore, we evaluated the effects of ISSM with combining inorganic and organic fertilizers on maize productivity, N use efficiency (NUE) and N balance and losses as compared with farmers’ practice (FP) and high-yielding practice (HY), based on an 11-year field experiment in Northeast China. Maize yield in ISSM (11.7–14.3 Mg ha−1) achieved 97.7% of that in HY and was increased by 27% relative to FP. The excellent yield performance in ISSM was mainly attributed to optimum plant population structure and yield components. Annual N surplus in ISSM was only 7 kg ha−1, which was considerably lower than that in FP (52 kg ha−1) and HY (109 kg ha−1). Consequently, ISSM obtained significantly lower N losses and greenhouse gases emissions and higher NUE. In contrast to FP, crop performance in ISSM showing better sustainability and inter-annual stability. In conclusion, ISSM is an effective strategy to achieve long-term sustainable high crop yields and NUE with less environmental costs in the intensive agricultural system.

scholarly journals Ammonia volatilization in corn crop as a result of the application of different nitrogenous fertilizers

2016 ◽  
Vol 7 (8) ◽  
pp. 100-105
Author(s):  
Caroline Coppo Jessica ◽  
do Carmo Lana Maria ◽  
schmoller Marilda ◽  
Gody Graziely ◽  
Fatecha Fois Diego ◽  
...  
Keyword(s):  
Ammonia Volatilization ◽  
Corn Crop

scholarly journals Mitigating Ammonia Volatilization from Waterlogged Acids Soils Using Organic Amendments

2019 ◽  
Vol 8 (3) ◽  
pp. 12
Author(s):  
Maru Ali ◽  
Ahmed Osumanu Haruna ◽  
Nik Muhamad Abd Majid ◽  
Walter Charles Primus ◽  
Audrey Asap ◽  
...  
Keyword(s):  
Leucaena Leucocephala ◽  
Ammonia Volatilization ◽  
Organic Amendments ◽  
Chemical Properties ◽  
Forest Litter ◽  
Cow Dung ◽  
Ammonia Loss ◽  
Chicken Litter ◽  
Use Efficiency ◽  
N Use

In production agriculture, granular urea is the most used nitrogen fertilizer in crop production. However, increase in soil pH following application of urea causes ammonia volatilization and reduces N use efficiency. To minimize ammonia loss, organic amendments are used, however, type of organic amendment use could affect urea use efficiency. This study was to determine the effects of organic amendments derived from forest litter, Leucaena leucocephala, chicken litter, and cow dung on ammonia volatilization and chemical properties of a waterlogged acid soil. Treatments evaluated were: (i) T1, Soil only, (ii) T2, Existing recommended fertilization, (iii) T3, Biochar-forest litter compost, (iv) T4, Biochar-chicken litter compost, (v) T5, Biochar-cow dung compost, (vi) T6, Biochar-Leucaena compost, and (vii) T7, Biochar-Leucaena - chicken litter compost. Standard procedures were used to quantify ammonia volatilization and soil chemical properties. The findings of this present study also revealed that the total amount of ammonia loss from urea over a period of forty-two days depends on the influence of the organic amendments on urea hydrolysis. Emissions of ammonia from T6 and T7 were significantly higher because, the decomposition of Leucaena leucocephala favours urea hydrolysis compared with those of T3, T4, and T5. Therefore, Leucaena leucocephala composts should be carefully co-applied with urea to minimize ammonia loss if the aim of using this type of amendments is to improve N use efficiency and soil and crop productivity.

Combining Azolla and urease inhibitor to reduce ammonia volatilization and increase nitrogen use efficiency and grain yield of rice

2020 ◽  
Vol 743 ◽  
pp. 140799
Author(s):  
Guoying Yang ◽  
Hongting Ji ◽  
Jing Sheng ◽  
Yuefang Zhang ◽  
Yanfang Feng ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Ammonia Volatilization ◽  
Urease Inhibitor ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Ammonia volatilization from enhanced-efficiency urea on no-till maize in brazilian cerrado with improved soil fertility

2016 ◽  
Vol 40 (2) ◽  
pp. 133-144 ◽  
Author(s):  
Eduardo Lopes Cancellier ◽  
Douglas Ramos Guelfi Silva ◽  
Valdemar Faquin ◽  
Bruno de Almeida Gonçalves ◽  
Leandro Lopes Cancellier ◽  
...  
Keyword(s):  
Controlled Release ◽  
Ammonia Volatilization ◽  
Slow Release ◽  
Urease Inhibitors ◽  
N Accumulation ◽  
Nitrogen Use ◽  
No Till ◽  
Use Efficiency ◽  
Slow Release Urea ◽  
Controlled Release Urea

ABSTRACT High nitrogen losses by ammonia volatilization are expected when urea is used as the source of N. The use of controlled-release urea and urease inhibitors are possible strategies to reduce such losses and increase nitrogen use efficiency. This study aimed to evaluate nitrogen losses by ammonia volatilization from stabilized, slow and controlled release urea and its absorption by maize grown under no-till in an improved Cerrado soil. Four N sources were used: conventional urea, urea + N-(n-butyl) thiophosphoric triamide (NBPT), urea + Cu and B and urea coated by sulfur + polymers. These N sources were surface applied along the rows using three N doses of 100, 150 and 200 kg ha-1. No N was added to the control. Data were collected regarding N losses by volatilization, the N contents accumulated in the stubble and grains, and the yields of the stubble and grains. Stabilized urea and slow release urea were efficient for postponing the ammonia volatilization peaks. The urease inhibitors postponed the peaks for up to two days, reducing the accumulated volatilization by 18% when compared with common urea. Polymer sulfur coated urea resulted in a 37% reduction in ammonia volatilization. Increasing the N application rate to 200 kg ha-1 resulted in 16% greater yields and 37% greater N accumulation in the plants relative to the control. However, the stabilized and slow-release urea did not improve the N accumulation or yield. Consequently, the nitrogen use efficiency of maize was not improved relative to the use of conventional urea.

Sign in / Sign up

Export Citation Format

Share Document