摘要
采用5因素2次正交旋转组合设计试验方法,研究了夏大豆3750kg/hm2以上产量的综合技术措施与应用效果。结果表明,在6月5￣30日播期范围内,商豆1099产量明显高于郑9007大豆品种;每晚播1d,夏大豆约减产66￣70kg/hm2,6月15日为夏大豆适播期下限。在适播期范围内,达到3750kg/hm2以上产量水平的优化农艺措施指标为:施氮肥(N)62.4～74.0kg/hm2、磷肥(P2O5)109.2～129.5kg/hm2、钾肥(K2O)78.0～92.5kg/hm2,施用比例约为1∶1.75∶1.25;种植密度19.2万～19.9万株/hm2;应用多效唑1818～1980g/hm2;灌溉时间7月28日～8月1日;叶面喷施硼砂1338～1542g/hm2。优化栽培比常规栽培增产16.0%～22.4%,增产效果明显。
With the five-elements two times orthogonal gyration combination design, comprehensive technical measures of over 3 750 kg/hm^2 production were studied. The tesuh indicated that during the sowing time from June 5 to 30, Shang Soybean 1099 was obviously higher than Zheng 9007 in production .It also showed that summer soybean＇s production was reduced by about 66-70 kg/hm^2, when sowed a clay later. June 15 was the last date to be sown. Within the proper period ,the yield level of quality agronomy measures was： applied quantity of fertilizers correspondingly wast N62.4-74.0,P2O5 109.2-129.5 and K2O 78.0-92.5 and its proportion was about 1：1.75：1.25. Its planting density was 192 000-199 000 seeds/hm^2. Paclobutrazol was applied for 1 818-1 980 g/hm^2. Irrigation time was from July 28 to Aug. 1, Borax was splraycd on surface of leaf for 1338-1542g/hm^2.
出处
《安徽农业科学》
CAS
北大核心
2006年第16期3951-3952,3981,共3页
Journal of Anhui Agricultural Sciences
基金
河南省科技攻关计划项目(981020212)。
关键词
夏大豆
高产栽培
农艺措施
技术模式
Summer soybean
High-yield cultivation
Agronomy measure
Technique mode and application
作者简介
张慎举（1955-），男，河南睢县人，副教授，从事高、中等农业教育、土壤肥料及作物栽培的教学与研究工作。
