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Chinese Journal of Soil Science
2001
(1)
32-34+49
不同供钾源及其用量对钾素营养的影响
作 者：
周晓芬;张彦才;李巧云
单 位：
河北省农科院土肥所
关键词：
牛厩肥;猪厩肥;麦秸;钾化肥;供钾作用
摘 要：
以牛厩肥、猪厩肥、麦秸和钾化肥为供钾源 ,进行土培和生物试验 ,结果表明 ,麦秸对土壤的供钾能力及对作物的有效性均高于钾化肥 ,两种厩肥的供钾能力及生物有效性略低于钾化肥 .随着厩肥和麦秸施用量的增加 ,土壤速效钾和缓效钾基本是成比例的增加 ,钾素有效转化率并未因施用量提高而明显降低 .随着施用量的增加 ,玉米幼苗吸钾量呈增加趋势 .
译 名：
Effects of different potassium sources and application amounts on potassium nutrition
作 者：
ZHOU Xiao-fen, ZHANG Yan-cai, LI Qiao-yun (Soil and Fertilizer Institute, Hebei Academy of Agricultural and Forestry Sciences, Hebei Shijiazhuang 050051, China)
关键词：
Manure; Wheat straw; Potassium fertilizer; K supply capacity
摘 要：
Soil incubation and biological experiments were conducted by using different potassium sources (cattle and pig manure, wheat straw and chemical K fertilizers). The results showed that the potassium supply capacity and efficiency of chemical K fertilizer were lower than those of wheat straw, but they were slightly higher than those of the two types of manures. As the application amount of the manures and the straw increased, the rapid and slow available K increased proportionally. However, the effective transformation rate of K did not increase apparently. A trend of increasing K absorption by corn seedling was found.
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不同供钾源及其用量对钾素营养的影响 [周晓芬, 张彦才, 李巧云] 河北农业科学 2000,4 (1) 14-19
