H318在沿海棉区密肥调组合技术研究  

Studies on Techniques of the Density,Nitrogen fertilizer and Chemical regulation of H318 in Cotton Region of Yellow Sea

作　　者：李文样 张祥 陈德华 

机构地区：[1]江苏省滨海县农业干部学校,江苏滨海224500 [2]扬州大学,江苏扬州225009

出　　处：《江西棉花》2011年第5期33-36,共4页Jiangxi Cottons

基　　金：国家自然科学基金[30971727];江苏省重点实验室重大项目[10KJA210057];江苏省青蓝工程;扬州大学新世纪学术带头人基金;江苏省自然科学基金企业博士计划[BK2009653];农业部国家转基因生物新品种培育重大专项[20092x08013-011B;2009ZX08013-014B]资助

摘　　要：试验采用"3414"组合设计方法,研究了不同密度、氮肥水平、化控时缩节安用量对转Bt基因抗虫棉品种H318的产量及生长发育的影响。并通过数学模型的优化与解析,以明确影响H318在沿海地区生长的关键因子和实现高产的关键栽培技术。结果表明,在密度30 000株/hm2、纯氮300 kg/hm2、缩节安150 g/hm2的条件下,H318子棉产量最高,达4 965 kg/hm2;模拟结果进一步表明,在密度为40 275株/hm2、施纯氮418.5 kg/hm2时,H318子棉产量有最大值。The key techniques of the Bt transgenic hybrid cotton cultivar H318 wereStudied in this experiment with the method of ＂3414＂ Experiment Design,and the effects of the density,nitrogen fertilizer and 1,1-dimethyl piperidinium chloride（DPC）on the seed cotton yield and growth and development were also discussed.The results showed that the seed cotton yield was the highest（4 965 kg/hm2） at the combinational measures of density of 30 000 plants/hm2,nitrogen rate of 300 kg/hm2,DPC of 150g/hm2.There were highest seed cotton yield for H318 when the density was at 40 275 plants/hm2,nitrogen rate was 418.5 kg/hm2 by modeled equation of the density,nitrogen fertilizer and DPC with seed cotton yield.

关 键 词：棉花 密度 氮肥 缩节安 

分 类 号：S562.048[农业科学—作物学]