摘要
在西北半干旱雨养条件下,以冬小麦‘陇中一号’为材料,研究了不同播期条件下土壤水分、产量差异。结果表明:冬小麦适当迟播可以提高土壤含水量,但在不同播期、小麦的不同生育期土壤含水量也存在差异。从4个不同播期分析,平均土壤含水量为最迟播期(S4,10月11日)的最高;产量以最早播期(S1,9月21日)的最低,9月30日—10月11日之间产量相近。多重比较表明,播种期越迟,土壤含水量越大,播期处理间产量差异不显著,晚播不会造成减产。
Under semiarid rain-fed condition, winter wheat‘Longzhong No.1＇was used to study soil moistureand winter wheat yield under different sowing dates. The results showed that soil water content increased withthe late-sowing of winter wheat. There were differences in soil moisture under different sowing dates andgrowth periods. Among the four sowing dates, the highest soil moisture was found in the latest sowing date（S4,October 11） and the lowest yield was found in the earliest sowing date（S1, September 21）. The yield wassimilar between September 30 and October 11. On the whole, the soil moisture increased with the delay ofsowing date. The late-sowing will not lead to the reduction of output.
作者
张淑芳
柴守玺
常磊
孙玉莲
Zhang Shufang;Chai Shouxi;Chang Lei;Sun Yulian(College of Agronomy,Gansu Agricultural University,Lanzhou 730070;Meteorological Bureau of Linxiazhou in Gansu Province,Linxia Gansu 731100)
出处
《中国农学通报》
2018年第29期13-19,共7页
Chinese Agricultural Science Bulletin
基金
行业(气象)科研专项"临夏州山洪气象预警指标研究"(GYHY201506001-1)
"临夏州气象条件诱发地质灾害风险预警研究"(2017-S-6-024)
关键词
不同播期
土壤水分
产量
穗数
千粒重
主茎穗长
差异
different sowing dates
soil moisture
yield
spike number
thousand grain weight
main stem spike length
difference
