摘要
多年定位试验与人工创造播前底墒研究结果表明,旱地地膜冬小麦产量与播前底墒有显著相关性,随底墒的提高,地膜冬小麦籽粒平均增产40.8％,蒸腾速率、光合速率增加,叶面积指数增大,提高夏休闲期土壤蓄水效率。
Experiment of different stored water of soil before sowing were conducted in dryland of east Gansu. The results show that the winter wheat yield has interrelated significantly with the stored water of soil before sowing in 0- 200cm soil layers. With the increasing of the soil stored water, the yield of winter wheat increases to 40.8% , the transpiration rate, photosynthetic rate, leaf area index, and efficiency of stored water in summer fallow raise.
出处
《中国生态农业学报》
CAS
CSCD
2003年第3期117-120,共4页
Chinese Journal of Eco-Agriculture
基金
"九五"国家科技攻关项目(96-004-04-04)
