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福建省农科院土肥研究室的科研人员和贫下中农结合,1977年在“周年养萍”研究上又取得新的可喜进展,实现了周年亩产粮跨“双纲”(1600斤)萍过10吨,为发展水稻生产,特别是杂交水稻和解决养猪饲料开辟了一条新的途径。“周年养萍”是指在早晚稻田采用“宽窄引双龙出海”方式插秧,窄行是4×2寸,插两行水稻,宽行是1.4尺养红萍。这样基本上可以在水稻生育阶段不断繁殖红萍,实现在稻田
Researchers at Fujian Provincial Academy of Agricultural Sciences Department of Soil and Fertilizer combined with the poor peasants and middle peasants, 1977 made new gratifying progress in the study of “Annual Keeping Ping”, and realized the anniversary of the mu production of grain across the “double outline” (1600 pounds) Ping 10 tons, for the development of rice production, especially hybrid rice and solve the pig feed opened up a new way. “Anniversary of nourishing the Ping” refers to planting rice in the early or late rice fields using the method of “widening and narrowing the lead to the sea”. The narrow row is 4 × 2 inches with two rows of rice inserted and the wide row with 1.4 feet of red duckweed. This basically can reproduce red rice in the rice growth stage, realized in the rice fields