Effects of Copper-based Nutritional Protective Agents on Cotton Growth and Yield
To explore the effects of copper-based protective agents on the growth, yield, and disease control efficiency of cotton,pot experiments were conducted in 2013 and 2014.The results showed that the lint yield was increased by 4.22％-13.38％ and 21.89％-38.36％ by spraying four kinds of copper-based protective agents on leaves with the concentration of 1 g· L-1 and 2 g·L-1, respectively, compared with water.The aboveground dry matter weight of cotton plants was improved by 7.44％-19.38％and 10.25％-23.96％, compared with spraying water on the leaves.Additionally, the disease index was reduced by 26.75％-40.91％and 22.78％-37.78％ by spraying copper-based protective agents on the leaves, compared with water.There was no difference among the different kinds of treatments.Based on these analyses, we conclude that the application of different concentrations and kinds of copper-based protective agents can promote cotton growth and production.Also, the copper-based protective agents had favorable disease control efficiency for cotton Verticillium wilt.Thus, these copper-based protective agents have good application value.
copper-based protective agentscottonyieldgrowthdisease control efficiency
国家科技期刊平台
NSTL
万方数据
维普
