机构地区: 广西大学农学院
出 处: 《中国农学通报》 2005年第8期236-237,251,共3页
摘 要: 利用盆栽试验,研究尿素配施不同比例的氯化铵对菜心硝酸盐积累的影响,结果表明:随着尿素配施氯化铵比例的增加,菜心氯含量增加,硝酸盐含量下降,而全N含量、叶绿素含量和收获前的产量变化不大。 Using the pot experiments, the study of the effect of Urea-ammonium chloride mixed treatments on the nitrate content in Brassica campestris L. ssp. chinensis var. tttilis Tsenet Lee was carried on, the results are as follows:With the increase of use of ammonium chloride, The Cl^- content in Brassica campestris L. ssp. chinensis var. tttilis Tsenet Lee increase obviously; and nitrate content reduce obviously, but the total N, total chlorophyll content and yield befor harvest don't vary evidently.