农业工程学报2012，Vol.28Issue(3)：87-93,7.DOI:10.3969/j.issn.1002-6819.2012.03.016
麦稻轮作下耕作模式对土壤理化性质和作物产量的影响
Effects of tillage patterns on crop yields and soil physicochemical properties in wheat-rice rotation system
摘要
Abstract
In order to study effects of tillage systems on crop yields and soil physical and chemical properties in wheat-rice rotation system, a long term (2007-2010) experiment was conducted. The results showed that compared with conventional tillage, the soil bulk density increased and soil water content decreased with no-tillage. But even without tillage, bulk density of the 0-10 cm soil layer was still suitable for the growth of crops. No-tillage enriched soil organic matter and total nitrogen in the surface soil layer. Both the soil organic matter and total N content of no-tillage were significantly higher in 0-10 cm layer and lower in 10-20 cm layer than that of conventional tillage. During the wheat season, the soil alkali N, available P and available K contents had the same trends with those of organic matter and total N. Whereas during the rice season, with no-tillage, the soil alkali N、available P and available K contents in 0-20 cm layer were lower than those of conventional tillage. The results also indicated that the treatment of no-tillage increased wheat yield, but significantly reduced rice production, and the key component of the yield was the effective panicle amount of wheat or rice. During the whole wheat-rice rotation system, the yields of wheat treated with no-tillage and the yield of rice treated with conventional tillage were 5.7% higher than wheat with conventional tillage and rice with no-tillage.关键词
土壤/水分/土地利用/麦稻轮作/免耕/翻耕/产量/土壤理化性质Key words
soils/moisture/land use/wheat-rice rotation system/no-tillage/conventional tillage/yield/soil physical and chemical properties分类
农业科技引用本文复制引用
武际,郭熙盛,张祥明,王允青,许征宇,鲁剑巍..麦稻轮作下耕作模式对土壤理化性质和作物产量的影响[J].农业工程学报,2012,28(3):87-93,7.基金项目
国家"十一五"科技支撑计划重点项目(2007BAD89B10)资助. （2007BAD89B10）
