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我区自1976年试种杂交水稻成功以来,由1977年的400多亩,迅速发展到81年的60多万亩。随着杂交水稻不断的扩大种植,出现了不同的认识。究竟目前种植杂交水稻的面积过头了,还是还有发展可能?下面谈些看法和意见。一、大部分水田地区具备发展杂交稻的条件 (一)优越的气候条件汉中川道、平坝地区,气候温和,雨量充沛,素有“小江南”之称。平坝有水田100万亩,大部分布在海拔300—800米的汉江沿岸,是典型的稻麦两熟地区。如位于汉江上游的勉县,日平均气温稳定通过12℃的始期4月9日,日平均气温稳定下降到22℃的始期8月28日,适合杂交水稻生长的时间是145
Since the successful trial of hybrid rice in 1976, our district has developed rapidly from 400 mu in 1977 to more than 600,000 mu in 81 years. With the continuous expansion of hybrid rice cultivation, there has been a different understanding. After all, is the current planted hybrid rice area too far, or is there development possible? Here to talk about some opinions and opinions. First, the majority of paddy fields have the conditions for the development of hybrid rice (a) superior climatic conditions Hanzhong Chuan Road, Pingba area, mild climate, abundant rainfall, known as “small Jiangnan,” said. Pingba paddy field 1000000 mus, most of the cloth in the 300-800 meters above sea level along the Han River, is a typical rice and wheat two ripe areas. For example, in Mianxian County located in the upper reaches of the Hanjiang River, the average daily temperature has stabilized at the beginning of 12 ℃. On April 9, the average daily temperature dropped steadily to the beginning of 22 ℃. On August 28, the suitable time for hybrid rice growth was 145