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兰州砂田蔬菜施肥现状及钾肥肥效
引用本文:李小刚,王平,刘淑英,张国盛.兰州砂田蔬菜施肥现状及钾肥肥效[J].土壤通报,2001,32(5):220-221.
作者姓名:李小刚  王平  刘淑英  张国盛
作者单位:甘肃农业大学资源环境系
摘    要:本文对于兰州市安宁区黄瓜、辣椒、蕃茄和茄子等四种蔬菜作物的施肥状况进行了调查研究.结果表明,氮磷的投入量是蔬菜生产需要量的3~9倍,钾素投入不足.增施钾肥不但可以增加产量,而且可以提高蔬菜果实的品质,增强抗病能力.

关 键 词:兰州砂田  蔬菜施肥  钾肥肥效
文章编号:0564-3945(2001)05-0220-02
修稿时间:1999年1月11日

Current Situation of Fertilizer Application and Effect of Potassium Fertilizer on Vegetables in Sand-mulched Fields of Lanzhou
LI Xiao-gang,WANG Ping,LIU Shu-ying,ZHANG Guo-sheng.Current Situation of Fertilizer Application and Effect of Potassium Fertilizer on Vegetables in Sand-mulched Fields of Lanzhou[J].Chinese Journal of Soil Science,2001,32(5):220-221.
Authors:LI Xiao-gang  WANG Ping  LIU Shu-ying  ZHANG Guo-sheng
Abstract:The current situation of fertilizer application on cucumber, chilly Pepper, tomato and eggplant in sand-mulched field is that nitrogen and phosphorus were often used 3 to 9 times higher than the required amount. However, the input of potassium(mainly through application of some organic materials) was obviously not enough, resulting in deficient status of soil K. The consequence of over application of N and P and the deficiency in K increase the costs of vegetable production, environmental pollution and weakness of vegetables' resistance to disease. Our experiments with potassium agreed with the results of investigation.
Keywords:Sand-mulched field in Lanzhou  Vegetable Fertilization  Potash  
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