摘要
在严重春旱及后期低温多雨情况下,大豆覆膜显著的提高了产量,在相同种植条件下,覆膜与不覆膜相比,增产82.1%;大豆覆膜能显著的提高地温,从出苗到开花期,苗带内10cm地温增加1.38℃,15cm地温增加0.59℃;大豆覆膜增加了土壤水分与速效养分含量。
Based on the experiment in 2003, the effect of plastic film covering on soybean yield was studied. The result showed that plastic film covering could increase soybean yield 82.1% more than that of no covering. Under the condition of dry spring and autumn with lower temperature and much rain,plastic film covering could increase 1.35℃ and 0.59℃ in 10 cm soil layer and 15 cm layer respectively from seeding to blossom period. It increased plough layer soil water and available nutrients content.
出处
《黑龙江农业科学》
2004年第3期6-8,共3页
Heilongjiang Agricultural Sciences
基金
黑龙江省科技厅重点攻关计划项目(GB03B302)
关键词
大豆
地膜覆盖
产量
土壤水分
soybean
plastic film covering
effect of yield increase.
