摘要
通过盆栽试验,研究了叶面喷施传统波尔多液(BDM)、Kocide2000(KCD)、波尔多液营养保护剂(BNPP)对小白菜生长效应的影响。结果表明,喷施BNPP能明显提高叶片中的Fe、Mn、Cu、Zn含量,与对照相比最大增幅分别为52.2%、33.8%、89.6%和50.4%,并能增加叶绿素含量及植株生物量,以稀释1000倍液的处理效果最佳;喷施KCD也能促进植株生长,但效果不如BNPP;喷施BDM反而抑制植株生长。
Pot experiments were conducted to study effects of spraying three different copper agents on surface of pakchoi leaves with different concentrations. After spraying three kinds of copper agents-Bordeaux Mixture（ BDM）, Kocide2000 （KCD）, Bordeaux Nutritional Protective Powder（BNPP） ,the results showed that spraying BNPP at certain intervals not only increased the content of Fe, Mn, Cu, Zn by 52.2 %, 33.8 %, 89.6 %, 50.4 %, respectively, as compared to the control,but also increased chlorophyll in pakchoi leaves and enhanced the growth potential of pakchoi. Compared to the spraying concentration of 2 g·L^-1 ,the concentration of 1 g·L^-1 received better results in the treatments. In comparison, the treatments with spraying KCD at different concentrations promoted the growth of the pakchoi as well ,though unparalleled with the BNPP. However,the spraying of BDM inhibited the growth of pakchoi markedly.
出处
《中国蔬菜》
北大核心
2007年第3期21-23,共3页
China Vegetables
基金
国家"948"项目(201054)
农业科技跨越计划项目(2001跨-8)
农业科技成果转化项目(农计发〔2004〕32号)
关键词
波尔多液营养保护剂
铜制剂
小白菜
微量元素
Bordeaux Nutritional Protective Powder（BNPP） ,Copper agents,Pakchoi,Trace element
