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近年来,油用向日葵在辽宁西北部地区种植面积大幅度增加,以阜新地区为例,从1977年的8万亩,1978年的18万亩,增至1979的28万亩。随着辽宁西北部油料、畜牧基地的逐步建成,向日葵还将有进一步的发展。因此,分析油用向日葵农业气候条件,为向日葵的稳产高产提供农业气候依据无疑是重要的。鉴于辽宁西北部地区土地较为贫瘠的特点,和向日葵需肥较多的特性,分析用地和养地相结合的向日葵轮作和复种的农业气候
In recent years, oil sunflower cultivation in the northwestern part of Liaoning Province increased substantially. Taking Fuxin area as an example, it increased from 80,000 mu in 1977 to 180,000 mu in 1978 to 280,000 mu in 1979. With the gradual completion of the fuel oil and livestock husbandry bases in the northwest of Liaoning, sunflowers will have further development. Therefore, it is undoubtedly important to analyze the agricultural climatic conditions of oil-used sunflower and provide agro-climatic basis for the steady and high yield of sunflower. In view of the characteristics of barren land in northwestern Liaoning and the need of more fertilizer for sunflower, the analysis of the agricultural climate of sunflower rotation and multiple cropping combined with land use