摘要
以‘定莜1号’为试材,设置3种集雨处理,即平地种植(T1)、沟垄不覆膜种植(T2)、沟垄覆膜种植(T3),测定了不同生育期土壤的水分、出苗率、叶面积指数、产量等主要指标.结果表明:T3处理的燕麦出苗率最高,为72.5%,叶面积指数显著高于T1和T2处理(P<0.05),T1和T2之间差异不显著(P>0.05),T3处理的燕麦耗水量为190.4mm介于T1和T2处理之间,但是产量和水分利用效率为各处理中最高,分别为1 745.5kg/hm2和9.1kg/(mm.hm2).沟垄覆膜处理是一种耗水量较小,产量和水分利用效率最高的集雨种植模式.
Experiments were conducted using the ＇Dingyou 1 ＇oat as test material in Dingxi City,Gansu Province in 2010.Three treatments of ridge-furrow rain-harvesting mode were designed,namely flat planting（T1）,ridge-furrow without plastic mulch planting（T2） and ridge-furrow with plastic mulch planting（T3）.Soil moisture,emergence rate,leaf area index and yield were determined.The results showed that the treatment T3 had the highest emergence rate which reached 72.5%,and the leaf area index significantly higher than that of T1 and T2 treatment（P0.05）.There was no difference between T1 and T2（P0.05）.The water consumption of T3 reached 190.4 mm,and the yield and water use efficiency reached 1 745.5 kg/hm2 and 9.1 kg/mm·hm2 which were significantly higher than those of other treatments.Overall,rainwater-collecting mode is the best mode with lower water consumption,the highest yield and water use efficiency.
出处
《甘肃农业大学学报》
CAS
CSCD
北大核心
2012年第5期56-59,68,共5页
Journal of Gansu Agricultural University
关键词
燕麦
沟垄种植
土壤水分
叶面积指数
产量
水分利用效率
oat
ridge and furrow planting
soil moisture
leaf area index
yield
water use efficiency
