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通过浙西南山区全年三熟间套作秸秆覆盖还田3年定位试验表明,秸秆覆盖还田比对照具有明显的增产能力,全年增幅达19.2%。秸秆覆盖还田不仅充分利用了秸秆资源,减少对大气和环境的污染,改善农业生态环境,且有效地调节了土温和土壤含水量。在低温的生育时期能有效提高土壤温度,在高温的生育时期则能有效降低土温;在少雨的季节,能有效降低土壤水分的蒸发,土壤含水量比对照高1%~2%,改善了作物生存环境。秸秆覆盖还田能明显提高土壤肥力,起到保水、保肥、保土和抑制杂草生长的作用。
Through three years of straw mulching in the mountainous area of southwest Zhejiang, the three-year positioning experiment showed that straw mulching had a significant increase in yield compared with the control, increasing by 19.2% throughout the year. Covering straw fields not only makes full use of straw resources, reducing the pollution of the atmosphere and the environment, improving the agro-ecological environment, and effectively adjusting the soil temperature and soil moisture content. Soil temperature can be effectively increased during low-temperature growth period and soil temperature can be effectively reduced during high-temperature growth period. During the dry season, soil water evaporation can be effectively reduced and soil water content is 1% -2% higher than that of the control, improving Crop Survival Environment. Straw mulching can significantly improve soil fertility, play a water retention, fertilizer, soil and inhibit the growth of weeds.