Subsurface-applied coated nitrogen fertilizer enhanced wheat production by improving nutrient-use efficiency with less ammonia volatilization

0553598 - BC 2022 RIV CH eng J - Journal Article
Yaseen, M. - Ahmad, A. - Naveed, M. - Ali, M.A. - Shah, S.S.H. - Hasnain, M. - Ali, H.M. - Siddiqui, M.H. - Salem, M.Z.M. - Mustafa, Adnan
Subsurface-applied coated nitrogen fertilizer enhanced wheat production by improving nutrient-use efficiency with less ammonia volatilization.
Agronomy. Roč. 11, č. 12 (2021), č. článku 2396. E-ISSN 2073-4395
Institutional support: RVO:60077344
Keywords : N fertilizer * subsurface application of N * surface application of N * polymer coated fertilizer * ammonia volatilization * nutrient use efficiencies * yield of wheat
OECD category: Soil science
Impact factor: 3.949, year: 2021
Method of publishing: Open access
https://www.mdpi.com/2073-4395/11/12/2396

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.
Permanent Link: http://hdl.handle.net/11104/0329453