通过秸秆还田大田试验,考察不同机械耕作方式对稻田土壤理化性质、水稻苗期生长状况及产量的影响。结果显示,不同机械耕作方式对稻田土壤物理性质影响不大,但旋耕铧犁处理可以显著增加土壤速效氮和速效磷含量;不同耕作方式对水稻初苗期生长有一定影响,但苗期结束时各处理间无显著差异;在稻田秸秆还田条件下,采用旋耕铧犁耕作方式可显著提高水稻产量。 Through field experiments with straw, the effects of different mechanical tillage methods on paddy soil physical and chemical properties, rice seedling growth status and yield were investigated. The results showed that different mechanical tillage methods had little effect on paddy soil physical properties, but rotary tillage plow treatment could significantly increase soil available N and available P content. Different tillage methods had an effect on rice seedling growth but ended at the seedling stage There was no significant difference among the treatments. Under the conditions of straw returning to paddy fields, the rotary tillage and plow tillage method could significantly increase the yield of rice.