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我县为三熟制地区,常因受自然热量资源等条件的制约,晚茬早稻原丰早都有一定面积因砍青而减产,后季稻南粳33等也有一部分田块因低温早临使粒重降低而减收,影响了双季稻的种植面积和稳产高产。为此,自1980年以来,我们根据连年多点反复试验的结果,在水稻的生育后期推广激素催熟,作为高产栽培的一项辅助措施。仅1982年全县就使用乙烯利、七○二等52,000多亩次,从而使早稻平均单产比1981年的664斤亩增60斤,增产9.04%;后季稻平均单产550斤,比1981年亩增45斤,增产8.91%。当然,这其中也有其
County for the three cooked areas, often due to constraints of natural heat resources and other conditions, the late crop of early abundance Asahi early morning have a certain area due to cut green and cut, rice and other southern rice 33 and later there are some fields due to early cold Reduce grain weight and reduce income, affecting the double cropping rice planting area and stable yield and high yield. To this end, since 1980, based on the results of successive trials over the years, we have been promoting hormone ripening in late rice as an adjunct to high-yielding cultivation. In 1982 alone, the county used ethephon and seventy-two times more than 52,000 mu, so that the average yield of early rice was increased by 60.44 kg compared with that of 664 kg in 1981, an increase of 9.04%. The average yield of post-season rice was 550 kg, Mu increase 45 pounds, 8.91% increase. Of course, this one also has it