brassica chinensis

基本解释

The form of nitrogen fertilizers could influence the contents of nitrate in Brassica chinensis.
所施氮的形态，对小白菜硝酸盐含量有显著的影响。
The results showed that the effects of different middle and trace element fertilizers on Brassica chinensis were different.
结果表明，小白菜对施用的各种中量、微量元素在不同质地的土壤上有不同的响应；
Brassica chinensis is used as experimental object , by experiment in the field , the quantitative mathematical model between yield and the application rate of N , P , K concentration is established .
以常见的叶菜类蔬菜——小白菜为研究对象，以产量为指标，通过田间试验，建立了其与肥料中氮、磷、钾等因素之间的量化数学模型。