[1]王崇乐,都大俊,张可安,等.秦巴山区土壤中钾素状况的分析及补钾措施[J].水土保持研究,2001,8(01):82-84.
　WANG Chongle,DU Dajun,ZHANG Kean,et al.Analysis on Potassium Status in Soil of Qinba Mountain Area and Measures of Adding Potassium[J].Research of Soil and Water Conservation,2001,8(01):82-84.
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秦巴山区土壤中钾素状况的分析及补钾措施

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 8 期数: 2001年01期 页码: 82-84 栏目: 出版日期: 1900-01-01
Title:
Analysis on Potassium Status in Soil of Qinba Mountain Area and Measures of Adding Potassium
作者:
王崇乐1, 都大俊1, 张可安1, 柯小兰1, 王鸿耀2
1. 陕西安康地区土肥站, 陕西, 安康725000;
2. 安康农业学校, 陕西, 安康725000
Author(s):
WANG Chongle1, DU Dajun1, ZHANG Kean1, KE Xiaolan1, WANG Hongyao2
1. Soil and Fertilizer Station of Ankang Region in Shaanxi Province, Ankang Shaanxi 725000, PRC;
2. Agricultural School of Ankang Region, Ankang Shaanxi, PRC
关键词:
严重缺钾; 原因; 方略
Keywords:
serious lack of potassium; reason; general plan
分类号:
S158.5
摘要:
始于20年前的土壤普查查明，陕西省耕地速效钾平均146mg/kg，作为粮油基地的关中地区更高于此。这就掩盖了秦巴山区缺钾的严重性。当时秦巴山地缺钾已占40%，随着耕作水平提高和产量增长，秦巴山区耕地缺钾面积已接近80%。事实证明，缺钾已成为秦巴地区粮食增产的瓶颈。分析了秦巴耕地缺钾的原因和钾肥肥效，提出了相应的补钾方略。
Abstract:
The general survey of soil has been starting twenty years till now,the result show that the average quick acting potassium in farmland is 146 mg/kg in Shaanxi,the central Shaanxi plain,as the grain and soil base,is more higher than that.These phenomena has covered the seriousness of lack of potassium in Qinba mountain area,in fact,the area of lack of potassium was nearly 40% in Qinba mountain area at that time,the area of lack of potassium is nearly 80% in that area with the increase of cultivation level and grain yield.The fact proves that the lack of potassium has become the limitation of increasing grain yield in this area.The general plan for adding potassium is put forward by analysing the reason of lack of potassium and potassium fertilizer efficiency in farmland of Qinba area.

参考文献/References:

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备注/Memo

收稿日期:2000-11-15

更新日期/Last Update: 1900-01-01