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过去,我国在多年试验研究基础上,在南方双季稻区总结提出了“浅(深)水护前返青,浅水分蘖,够苗晒田,薄水抽穗,干湿壮籽”的灌水方法,在生产上推广使用,对改革传统的深灌灌水方法,实行科学用水,提高水稻的单位面积产量,起到了重要作用。但由于早稻前期坐蔸迟发和后期高温逼熟,晚稻栽后败苗和后期“寒露风”等危害,上述灌水方法的前期与后期两段用水,无论从理论和实践上均存在一定的缺陷.为探讨解决上述矛盾的途径,我们在1979～1981年连续三年大田试验的基础上,1982年设置了不同于上述灌水方法的小区试验,深入研究了双季稻生育前期、后期不同灌水方法对水稻生育的影响。初步探明了对防止坐蔸、败苗、早衰的相应的灌水方法。现就主要研究结果加以分析总结。
In the past, based on many years of experimental research in our country, the method of irrigation for “Shallow (deep) water before returning to green, shallow tillering, seedling sunning, thin water heading, wet and wet seed planting” Promoting the use in production has played an important role in reforming the traditional methods of deep-water irrigation, implementing scientific water use and increasing the yield per unit area of rice. However, due to the delayed early onset and late ripening of late rice, the late seedling seeding and the later “cold dew wind” and other hazards, the above two methods of irrigation water use both in theory and practice, there are some defects In order to explore ways to solve these contradictions, we set up different plots experiment different from the above irrigation methods in 1982 on the basis of three years of continuous field trials from 1979 to 1981, and studied in depth the different irrigation methods Impacts on rice growth. Proven to prevent the initial production of semen, defeat Miao, premature aging corresponding irrigation methods. The main findings are analyzed and summarized.