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海盐县1969年早稻试验“秧苗带土移栽”获得成功,1970年在全县范围内推广,秧苗带土移栽面积占绿肥田早稻的56%,普遍增产。1971年进一步扩大,占绿肥田早稻面积的85%。1972年在培育带土移栽壮秧上又全面实行了“四改”:即改“场地水田旱育”为“水田湿育”,全县水田湿育占95%;改密播为适当稀播;改水浇为灌好“三期水”(前期过水促全苗,中期灌木防死苗,后期肥水育壮苗);改“少施肥”为施好“三次肥”(基肥稳,二叶肥轻,起身肥重)。1972年绿肥田早稻带土移栽秧苗在大面积实行水田湿育后,由于肥水管理措施没有被广大干部和群众完全掌握,4月下旬秧苗
Haiyan County early rice experiment in 1969, “transplanting seedlings with soil” was successful in 1970 within the county to promote the transplanting of seedlings with soil accounted for 56% of green manure early rice, the general increase. 1971 to further expand, accounting for 85% of green manure area of early rice. In 1972 with the soil cultivation transplanted seedlings and the full implementation of the “four changes”: to change “paddy field drought” as “wetland paddy fields,” paddy wetland accounted for 95% of the county; Sowing; watering irrigation for the filling of “three water” (pre-over-water to promote the whole plant, mid-term anti-seedling shrubs, fertilizer and seedlings later); change “less fertilizer” for the good “three fat” Two leaves fat light, got up fat). In 1972 green manure early rice with soil transplanting seedlings wet paddy practice in a large area, due to fertilizer and water management measures have not been fully mastered by the majority of cadres and the masses, in late April seedlings