Role of nitrification inhibitor DMPP (3,4-dimethylpyrazole phosphate) in NO_3^--N accumulation in greengrocery (Brassica campestris L. Ssp. Chinensis) and vegetable soil

Article type: Research Article

Authors: XU, Chao | WU, Liang-huan | JU, Xiao-tang | ZHANG, Fu-suo

Affiliations: College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029, China | College of Resources and Environment, China Agricultural University, Beijing 100094, China

Note: [] Corresponding author. E-mail: lhwu@zju.edu.cn

Abstract: The influence of nitrification inhibitor (NI) 3,4-dimethylpyrazole phosphate (DMPP) on nitrate accumulation in greengrocery (Brassica campestris L. ssp. chinensis) and vegetable soil at surface layer were investigated in field experiments in 2002 and 2003. Results showed that NI DMPP took no significant effect on yields of edible parts of greengrocery, but it could significantly decrease NO_3^--N concentration in greengrccery and in vegetable soil at surface layer. In addition, NI DMPP could reduce the NO_3^--N concentration during the prophase stage of storage.

Keywords: 3,4-dimethylpyrazole phosphate (DMPP), NO[TeX:] _3^--N, vegetable soil, greengrocery (Brassica campestris L. ssp. chinensis)

Journal: Journal of Environmental Sciences, vol. 17, no. 1, pp. 81-83, 2005