【摘 要】
：
对 4种保护性耕作法与传统耕作法进行了田间对比试验研究 ,着重探讨了免耕法和免耕 +深松耕作法增加耙地表土作业后 ,对土壤水分保持和作物产量的影响。结果表明 ,免耕碎秆覆
【机 构】
：
中国农业大学机械工程学院!北京清华东路17号中国农业大学(东校区)46信,100083,中国农业大学机械工程学院,中国农业大学机械工程学院,中国农业大学机械工程学院
论文部分内容阅读
对 4种保护性耕作法与传统耕作法进行了田间对比试验研究 ,着重探讨了免耕法和免耕 +深松耕作法增加耙地表土作业后 ,对土壤水分保持和作物产量的影响。结果表明 ,免耕碎秆覆盖 +深松、免耕碎杆覆盖+深松 +耙和免耕耙 3种处理的小麦平均产量分别比传统处理增加 9 ,11和 14 ;对采用纯粹免耕法的小麦地增加耙地表土作业后 ,休闲期蓄水效果和水分利用效率得到明显改善 ,小麦增产 12 ;对免耕 +深松耕作法增加播前耙地作业后 ,小麦地休闲期蓄水效果和水分利用效率得到一定程度的提高 ,产量略有增加
Four kinds of conservation tillage and traditional tillage methods were compared in the field. The effects of no tillage and no tillage + deep tillage on the soil moisture conservation and crop yield were studied. The results showed that the average yield of wheat with no-tillage culm mulching + subsoiling, no tillage with shard covered + subsoiler + harrow and no-tillage rake increased by 9, 11 and 14 respectively compared with the conventional treatment; After no-tillage wheat increased harrowing surface soil operation, water storage efficiency and water use efficiency were significantly improved during the leisure period, wheat yield increased by 12; after no-tillage + deep-plowing operation, Period water storage efficiency and water use efficiency have been improved to a certain extent, the output slightly increased
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