欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (9): 291-294.

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

不同施氮量对秋播超甜玉米产量性状的影响

程杏安 梁秀兰 胡美英   

  • 收稿日期:2010-09-05 修回日期:2010-10-04 出版日期:2011-04-25 发布日期:2011-04-25

Effect of Different Nitrogen Application Levels on Yield –properties of Fall Super-sweet Maize

  • Received:2010-09-05 Revised:2010-10-04 Online:2011-04-25 Published:2011-04-25

PDF (PC)

947

摘要：

摘要：田间试验、常规考种分析6种不同施氮水平对秋播“华珍”超甜玉米产量性状的影响，为超甜玉米种植过程中合理施用氮肥提供科学的指导依据。结果表明：6组不同施氮量对超甜玉米叶面积、穗长、穗粗、穗行粒数、百粒鲜重和百粒干重都有显著的增产效果。其中有效增加促进叶片面积，穗长、穗粗、穗行粒数以及鲜苞产量的最佳氮肥施用量在225kg/hm2~300kg/hm2之间。不同氮肥水平对百粒鲜重和百粒干重也有显著增产效果，最佳施氮量在300kg/hm2~375kg/hm2之间，因此通过调控氮肥的施用量来增加超甜玉米产量是可行的，其中约300kg/hm2的氮肥施用量既能有效提高超甜玉米主要产量性状，降低生产成本,也能避免氮肥施用过多对玉米植株生长以及生态环境造成不良影响。

关键词: 茶渣有机无机活性肥, 茶渣有机无机活性肥, 改良土壤, 大棚葡萄

Abstract:

Abstract: field experiment and assay were proformed to study six different nitrogen application levels on the yield–properties of super-sweet maize, hoping to provide reasonable corn nitrogen fertilizer in the process of growing fall super-sweet maize. The result indicates that 6 different nitrogen application levels can significantly improve leaf area、 length and wide of spike 、grain number of row、yield of flesh-maize cob and weight of 100 flesh grain and 100 dried grain. 225kg/hm2~300kg/hm2 is the optimal nitrogen application rang to improve the frontal 4 yield-properties, and 300kg/hm2~375kg/hm2 is optimal to the latter, weight of 100 flesh grain and 100 dried grain, so it is quite feasible to enhance the maize yield by regulating the application of nitrogen, and nitrogen application level at about 300kg/hm2 not only improve effectively the main yield-properties of maize, decline the production cost, but also avoid the negative effect due to excessive nitrogen application to growth of maize and ecological environment.