摘要
1 998～ 1 999年 ,在山西省临汾应用裂区设计法就旱地冬小麦集水补灌的播期密度效应进行了研究。结果表明 :主因子播期 A3 ( 1 0月 1日 )、播期 A2 ( 9月 2 4日 )与播期 A1( 9月 1 7日 )的产量存在 5 %显著差异 ;副因子播量之间不存在显著差异 ;最优组合为 A3 B2 即 1 0月 1日播种 ,播量 30 0万粒 /hm2 ,产量达 34 4 1 .0kg/hm2。该处理水分生产效率达 1 6 .0 5 kg/( mm· hm2 )。并对 A1、A2 、A3 播期的冬前、拔节期生物学效应进行了分析。
Using split plot experiment of catchmental irrigation,sowing time and density of winter wheat in dry land was investigated during 1998～1999 in Linfen, Shanxi. The result showed that sowing date Oct.1 has significant yield-increasing effect compared with the dates Sep.24 and Sep.17 and there is no singificant difference among different density. The optimal treatment combination is Ocf.10(sowing date)and 3.0×10 6grains/hm 2(density). The yield can reach up to 3441.0kg/hm 2,and water creative efficiency can reach 16.05kg/hm 2. Biotogical effect of the three sowing times before winter and jointing stage was also analyzed. This result can supply academic foundation for more extending of catchmental irrigation technology of winter wheat in dry land.
出处
《河南职业技术师范学院学报》
2002年第2期10-12,共3页
Journal of Henan Vocation-Technical Teachers College
基金
山西省科委攻关项目 ( 971 0 1 0)
关键词
旱地小麦
集水补灌
播期密度
栽培技术
winter wheat in dry land, catchmental irrigation, sowing time, density
