焉耆垦区克瑞森葡萄叶片营养DRIS标准研究

Leaf nutrient diagnostic standard of Crimson seedless grape with DRIS in Yanqi reclamation region

以焉耆垦区干旱戈壁地5年生克瑞森葡萄为研究对象,通过对高产园和低产园的叶片营养分析,进行DRIS营养诊断技术系统研究,确定了DRIS诊断的重要参数:N/P、N*K、P/K;制定了干旱戈壁地克瑞森葡萄DRIS指数诊断法的计算公式;采用"3414"配方施肥设计对焉耆垦区克瑞森葡萄进行了N、P、K三因素四水平大田试验,利用DRIS指数法对配方施肥各个处理进行检验,所诊断的N、P、K的需肥次序与实际施肥情况基本一致,但是很难达到一个相对平衡的状态。建议在生产中指导克瑞森葡萄施肥必须DRIS与其它营养诊断方法结合使用。

In this study,using five-year-old Crimson seedless grape growing in Yanqi reclamation,we systematically analyzed the method of Diagnosis and Recommendation Integrated System（DRIS） for Crimson seedless grape cultivations by analyzing leaf nutrient which were collected from low-or high-yielding vineyard.At the end,we determined the diagnosis important parameters of DRIS： N/P,N＊K,P/K,and formulated the calculation formula of Crimson seedless grape using index diagnosis method of DRIS.At the same time,the formula fertilization experiments of N,P and K were studied in the field.The experimental results further indicated that short supplies of N,P and K matched with the actual quantity of fertilizers.But it is hard to achieve a state of relative balance of N,P and K.Finally,we recommended that DRIS with other nutritional diagnostic methods must be used in combination in the Crimson grape production process.