摘要
试验结果表明：小麦生育期秸秆覆盖能平抑土温变化和改善土壤水分环境，由于多因素关联作用，所以增产效果以适量覆盖最佳。另外，麦收后休闲期覆盖耕作均有利于改善下茬物的底墒条件，但对其它土壤性状影响不大。
The experimental results showed that straw mulching could increase the upper soil moisture and restrain the tillage-layer temperat-ure in the Spring wheat growing period,but the mulch quantity should be suitably selected.Moreover,the mulching-tillage after Summer harvesting was also capable of improving the soil moisture prepared for later cropping
出处
《甘肃农业大学学报》
CAS
CSCD
1994年第1期56-60,共5页
Journal of Gansu Agricultural University
关键词
覆盖
耕作
黄土高原
mulching-tillage
arid farming
loess plateau
