近年来,采用五元二次组合方案试验,用微电脑模拟,寻得各杂交水稻组合的优化栽培方案,在娄底、衡阳、郴州等地应用,使双季杂交水稻都获得高产稳产增收的效果,在水稻栽培史上是一个大的飞跃。由于各个方案都有它对土质、生态条件的适应性,各栽培条件之间差异很大,因而模拟受到限 In recent years, using the five yuan of the second combination of experimental programs, using microcomputer simulation to find the optimal combination of hybrid rice cultivation programs, in Loudi, Hengyang, Chenzhou and other places, so that double crop hybrid rice have high yield and stability of the yield, In the history of rice cultivation is a big leap. As each program has its adaptability to the soil and ecological conditions, the cultivation conditions vary greatly, so the simulation is limited