Optimized nitrogen rate, plant density, and irrigation level reduced ammonia emission and nitrate leaching on maize farmland in the oasis area of China.

ABSTRACT: Nitrogen fertilizers play a key role in crop production to meet global food demand. Inappropriate application of nitrogen fertilizer coupled with poor irrigation and other crop management practices threaten agriculture and environmental sustainability. Over application of nitrogen fertilizer increases nitrogen gas emission and nitrate leaching. A field experiment was conducted in China's oasis irrigation area in 2018 and 2019 to determine which nitrogen rate, plant density, and irrigation level in sole maize (Zea mays L.) cropping system reduce ammonia emission and nitrate leaching. Three nitrogen rates of urea (46-0-0 of N-P₂O₅-K₂O), at (N₀ = 0 kg N ha^-1, N₁ = 270 kg N ha^-1, and N₂ = 360 kg N ha

SUBMITTER: Asibi AE 

PROVIDER: S-EPMC8783566 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature