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中国农学通报

中国农学通报 ›› 2003, Vol. 19 ›› Issue (1): 30-30.

所属专题： 玉米； 烟草种植与生产

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腐植酸钾对玉米生长发育和产量构成因素的影响

杨安民 王海潮 刘漫道 唐保善 夏志明 邢惠萍 杨 峰   

  • 出版日期:2003-02-25 发布日期:2003-02-25

Effect of HA—K on Corn Development and Factors Forming Yield

Yang An-ming, Wang Hai-chao, Liu Man-dao, Tang Bao-shan, Xia Zhi-ming, Xing Hui-ping, Yang Feng   

  • Online:2003-02-25 Published:2003-02-25

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摘要： 试验结果表明，腐植酸钾（HA—K）对玉米生长发育、产量构成因素以及产量均有显著的促进作用。浸种浓度与幼苗生长量呈正相关，r=0.8434～0.9997。浸种和叶面喷施平均株高、穗位高、茎粗比对照增加5.04cm、5.12cm和0.072cm；穗长、穗粗增加0.983cm和0.2616cm；穗粒数、千粒重增加57.74粒和28.303g；秃顶率下降3.164个百分点，产量提高24.79%。在本试验条件下，HA—K对玉米植株性状和产量构成的影响X2>X1，使各性状达最佳状态的HA—K使用浓度为：浸种576.6～1369.7mg/kg，叶面喷施903.4～1617.9mg/kg。

关键词: 玉米, 玉米, 茎腐病, 侵染规律, 防治策略

Abstract: HA—K produced a great on corn development and factors forming yield. The results indicated that there was greatly relativity (from o.8434 to 0.9997)between seed soaked with diffrent concentration of HA—K and seedling development, that average plant height, ear-site Height , stem thickness, ear lengh, number of grains in a ear, weight per 1000 corn grains and total yield increased in turn by 5.04cm, 5.12cm, 0.072cm, 0.983cm, 0.2616cm, 57.74grains,28.303 gram. And 24.79 per cent than the control. But the bare top of corn ear decreased by 3.164 per cont than the control . The effect of concentration X2 On development and factors forming yield exceeded that of concentration X1. And optimum concentration of HA—K as follows: from 576.6 to 1369.7mg/kg as seed soaked with it; From 903.4 to 1617.9mg/kg as it was sprayed on corn leaves.