Effect of Mixing Urea with Humic Acid and Acid Sulphate Soil on Ammonia Loss, Exchangeable Ammonium and Available Nitrate | Science Publications

American Journal of Environmental Sciences

Mohd T.M. Yusuff¹  Nik M.A. Majid¹  Osumanu H. Ahmed¹ 

关键词: Ammonia volatilization;    humic acid;    acid sulphate soil;    urea;    ammonium;    nitrate;   

DOI  :  10.3844/ajessp.2009.588.591

学科分类：环境科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: Ammonia loss due to rapid hydrolysis of urea in soil following surface application can be substantial. Ammonia loss in agriculture is estimated to be 1 to 60%. This laboratory study compared the effect of three different urea-humic acid-acid sulphate soil mixtures on NH3 loss and soil ammonium and nitrate contents, with loss from surface applied urea without additives (urea alone). Approach: Humic acid, acid sulfate soil and soil use in the incubation study was analyzed for selected soil physical-chemical properties. The fertilizers mixture and ammonia loss was done using standard methods. The treatments were evaluated in Randomized Complete block Design with 3 replications. The data obtained at the end of the study on total ammonia loss, soil pH, exchangeable ammonium and available nitrate were analyzed using analysis of variance and the means were compared using Duncan

【 授权许可】

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