秦美猕猴桃叶营养状况及标准值的研究

A Study on the Leaf Nutrient Status and Standard Value in Qinmei Kiwifruit Orchards

通过连续 2 a对陕西秦岭北麓地区秦美猕猴桃叶片营养状况的调查和统计分析 ,查明了当地猕猴桃树普遍缺乏钾、氯和磷元素 ,而钙、镁和氮元素含量偏高。秦美猕猴桃丰产园叶片营养标准适宜范围为 :氮2 .2 7%～ 2 .77% ,磷 0 .1 6%～ 0 .2 0 % ,钾 1 .60 %～ 0 .2 0 % ,钙 3 .2 9%～ 4.43 % ,镁 0 .40 %～ 1 .1 3 % ,氯 0 .6%～ 1 .0 % ;锌 2 3 .6～ 44.2 mg/ kg,铁 90 .1～ 2 67.9mg/ kg,锰 44.5～ 1 73 .1 mg/ kg,铜 7.0～ 2 1 .8mg/ kg,硼3 8.5～ 79.9mg/ kg。

A nutritional survey was conducted over two years period in Qinmei kiwifruit orchards in Shaanxi province. The desirable mineral element contents in the kiwifruit leaves of the high yield orchards were presented, the results showed that local orchards were low in potassium,chloride and phosphors and high in magnesium, calcium and nitrogen in kiwifruit growing areas in Shaanxi, a guide to fertilization and nutrient diagnosis of Qinmei kiwifruit orchards was provided in the paper.