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中国农学通报

中国农学通报 ›› 2005, Vol. 21 ›› Issue (5): 266-266.

所属专题： 玉米

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钾肥在豫北潮土区夏玉米上的施用效果

赵士诚,刘新红,韩燕来,王宜伦,谭金芳   

  • 出版日期:2005-05-05 发布日期:2005-05-05

The Applied Efficiency of Potassium Fertilizer on Summer Maize in Chao Soil of Northern of He Nan

Zhao Shicheng, Liu Xinhong, Han Yanlai, Wang Yilun, Tan Jinfang,   

  • Online:2005-05-05 Published:2005-05-05

摘要： 通过田间试验研究了河南高产潮土区夏玉米施钾效果及适宜的施用量。结果表明，增施钾肥能明显降低穗位、增加株高﹑穗长、百粒重等增加玉米抗逆性、促进玉米产量构成性状，玉米产量随着施钾量的增加而提高，高钾处理增产幅度变缓，经济效益低。150kg/hm2的施钾量在高肥力潮土上较为适宜。

Abstract: The efficiency of applied Potassium fertilizer and the reasonable amount of applied Potassium fertilizer on summer maize of high yield alluvial soil of Henan was studied by field trial. The results showed，that applied Potassium fertilizer can decrease the ear height and improve the plant height, ear length, hundred grains weight to enhance the ability of the maize resisting stress and improve the properties of yield structure, and maize yield increased with the increasing amount of applied Potassium fertilizer. But the yield of the high potassium treatment become slower, its economic profit is lower. The amount of potassium constructed of 150kg/hm2 is comparatively reasonable on the high fertility alluvial soil soil.