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我省常年种植棉花1000万亩左右,占耕地面积14％。1979年,总产首次突破50万吨大关。1980～1984年平均总产57.6万吨,平均单产57公斤;其中1983年单产达到65公斤,创历史最高平水。但是,由于政策等因素的影响,1985～1986年,全省棉花生产大幅度下降,棉田面积减少300多万亩,总产减少近20万吨,单产降到54公斤。本文仅就导致单产下降的栽培原因及其增产途径予以分析讨论。 (一) 棉花单产下降的原因主要有以下六个方
The annual planting of cotton in our province is about 10 million mu, accounting for 14% of the cultivated land area. In 1979, the total output exceeded 500,000 tons for the first time. The average output of 576,000 tons between 1980 and 1984, with an average yield of 57 kilograms; of which 1983 yield reached 65 kilograms, the highest record level of water. However, due to the impact of policies and other factors, the province’s cotton production dropped significantly from 1985 to 1986, with the area of cotton fields reduced by more than 3 million mu and the total output reduced by nearly 200,000 tons with the yield dropping to 54 kg. This article only led to decline in yield due to cultivation reasons and ways to increase their production to be discussed. (A) The main reasons for the decline in cotton yield are the following six parties