摘要
采用5因素二次正交旋转组合设计试验方法，研究了夏大豆3750kg/hm^2以上产量的综合技术措施与应用效果。结果表明，在6月5至30日播期范围内，商豆1099产量显著高于郑9007大豆品种；每晚播1d，夏大豆减产约66～70kg/hm^2；在该试验条件下，6月15日为夏大豆适播期下限。在适播期范围内，达到3750埘晡以上产量水平的优化农艺措施指标为：氮肥（N）62．4～74．0kg/hm^2、磷膦（P20，）109．2～129．5kg/hm^2、钾肥（K20）78．0～92．5lkg/hm^2，其施用比例约为1：1．75：1．25；种植密度19．2～19．9万树晡；应用多效唑1818～1980g/hm^2；灌溉时间7月28日至8月1日；叶面喷施硼砂1338～1542g/hm^2。优化栽培比常规栽培增产16．0％～22．4％，增产效果十分显著。
By using five elements duplicate orthogonal gyration combination design, comprehensive technical measures for over 3 750 kg/hm^2 in soybean production were studied. It showed that the sowing date from June 5 to 30 , Shang Soybean1099 was significantly higher than Zheng 9007. Summer soybean＇ s production was reduced by about 66 - 70 kg/hm^2 by each delayed day. June 15 was the deadline to planting. Within the proper period, the yield level of quality agronomy measures：application of N, P and K at：N62.4 - 74.0 kg/hm^2 ,P205 109.2 - 129.5 kg/hm^2 ,K20 78.0 - 92.5 kg/hm^2. Its planting density is 192 000 - 199 000 plants/hm^2, Paclobutrazol is applied at the rate of 1 818 - 1 980 g/hm^2. Irrigation time is from July 28 to August 1. Borax is sprayed onto surface of leaves for 1 338 - 1 542 g/hm^2. Quality cultivation increases yield 16.0% - 22.4% significantly than the normal one.
出处
《大豆通报》
2007年第6期11-14,共4页
Soybean Bulletin
基金
河南省科技攻关计划项目"大豆荚而不实发生机理及预防措施研究"(981020212)资助
关键词
夏大豆
高产栽培
农艺措施
技术模式及应用
Summer soybean
High - yield cultivation
Agronomy measures
Technique mode and application
