2009•Ganhan diqu nongye yanjiuRequires access
Study on nutrient diagnosis of Fuji apple in Shaanxi Province
Jin Zhang
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Abstract
The mineral element content of leaves sampled from Fuji apple excellent demonstration orchards in Weibei area of Shaanxi Province was analysed.The nutrient diagnosis of apple leaf was investigated by DRIS,M-DRIS and DOP.The results were as follows:(1) The available nutrient content of leaves was significantly different among different orchards.(2) There were nine mineral elements that were diagnosed in apple leaves of every orchard.The most deficiency element among those nine elements in orchards in the regions of Yan' an,Tongchuan and Baoji was copper(Cu),while that in Weinan was calcium(Ca), in Xianyang was manganese(Mn).(3) The NII and ∑DOP of apple leaf in orchards of every region were accounted.The nutrient of apple in Tongchuan orchards was of the most imbalance among the orchards of the five regions.