全国农业劳动模范陈永康1958年提出的单季晚粳“三黄三黑”丰产经验,综合、概括了他的“小暑发棵、大暑长粗、立秋长穗”以及“前期浅水发棵,中期干干湿湿结合烤田,后期干花湿籽”等肥水管理技术,并提出了水稻不同生育期的叶色要求及相应的技术措施,借以统一生育前期和后期、物质积累和分配以及稻穗增粒和增重的矛盾,以达到稳定 Chen Yongkang, a model agricultural laborer in the country, put forward the experience of “three yellow and three blacks” of single season japonica rice in 1958, and summed up his experiences of “small summer hair tree, big summer and long stem, long autumn ear” and “ Dry and wet combined with grilled fields, the late dry flower wet seed ”and other fertilizer and water management techniques, and put forward the different growth stages of rice leaf color requirements and corresponding technical measures to unify the early and late reproductive, material accumulation and distribution and grain panicle And weight gain the contradiction in order to achieve stability