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通过大区试验、示范表明:(1)在太湖地区,实施小麦秸秆全量还田后进行旱撒播和旱条播是可行的,且对水稻有增产效果;(2)小麦秸秆全量还田后能够改善土壤结构,提高土壤通透性和保水能力,本试验条件下实施秸秆全量还田与对照相比,土壤容重低12%,总孔隙度增5.73%;(3)小麦秸秆全量还田后旱直播水稻的关键技术环节要抓好切碎还田、适期早播、适量匀播、间歇灌溉和化学除草。
Through the regional trial, the demonstration shows that: (1) In Taihu Lake area, it is feasible to carry out dry sowing and dry sowing after the wheat straw is fully returned to the field and yield increasing effect on rice; (2) Wheat straw can be improved Soil structure, improve soil permeability and water retention capacity, the experimental conditions, the implementation of the full amount of straw returned to the soil compared with the control, the soil bulk density low 12%, the total porosity increased 5.73%; (3) The key technical aspects of rice should be well shredded back to the field, early sowing the right period, the amount of uniform broadcasting, intermittent irrigation and chemical weeding.