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我省的植棉历史较久,面积逐渐由南向北扩展,到六十年代比解放初单产提高3—4倍;进入七十年代,产量不但没有提高,反而有下降趋势,特别是1976年的低温灾害造成全省棉花大幅度减产。因而辽宁能否发展棉花生产,成为生产和学术上争论的问题。为此,我们根据近几年对棉花低温灾害的研究和六十年代对棉花热量条件鉴定的一些资料,对辽宁气候和棉花生产的一些关系做了初步探讨,并对低温灾害区域作了初步划分。
The province has a long history of cotton-growing and its area gradually expanded from south to north, and the yield increased by 3-4 times that of the beginning of the liberation in the 1960s. In the 1970s, the output not only failed to increase but decreased gradually, especially in 1976 The low-temperature disaster caused the province’s cotton significantly cut. Therefore, Liaoning can develop cotton production, become a production and academic debate. Therefore, based on the researches on low temperature cotton disaster in recent years and some materials identifying the caloric conditions of cotton in the 1960s, some preliminary discussions have been made on some relations between climate and cotton production in Liaoning Province, .