Nutrition Disorders Diagnosis Of Grape Protected Cultivation Research And Treatment Technique In Jiaxing Region

With the rapid development of Grape Protected Cultivation, nutrition disorders is becoming more and more obvious. This article diagnose the nutrition disorders of Grape Protected Cultivation in Jiaxing, research on the dynamics nutrient uptake of grape and design the fertilization and simple root restriction cultivation. Reduce fertilizer application and root pruning application of Grape Protected Cultivation, lighten the agricultural non-point source pollution on this basic. The results were summerized as follows:1、 Find out the nutrition disorders of Grape Protected Cultivation in Jiaxing Region:(1) The total soil nutrition become higher than it was before and unbalanced.(2) The soil acidification is obvious, lower than the proper scope of grape growth.(3) The soil salinization is serious, effects the absorption from water for the grape.(4) The uptake of trace and mesne element was inhibited, especially magnesium.2、 Summarize the demand nutrition characteristic of grape protected cultivation, get two kinds of optimized fertilization scheme through field experiment. The scheme can reduce fertilizer application at50%, improve soil’s physical and chemical properties, lighten the nutrition disorder, improve grape quality and increase farmer’s income.3、 Find out the root pruning cultivation can improve the utilization rate of fertilizer, reduce fertilizer application at20%. The grape will have earlier maturation, better quality and stability yield, and the farmers will have better cultivate benefit. The simple root restriction cultivation can rehabilitate the soil and reduce the nutrition disorder.