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黑龙港流域粮棉产量历史上一直是低而不稳,农村实行承包责任制后粮棉连年收成好。据1990年统计,衡水地区粮食播种面积800万亩,平均单产207公斤,棉花播种面积280万亩,皮棉平均单产38公斤。平均单产与高产区相比有明显差距,主要原因是自然条件差,旱、涝、碱灾害严重,大部份盐碱地没有充分开发利用,生产潜力尚未得到应有的发挥。长期以来,广大科技人员和农民在治理改造旱、碱地过程中积累了许多抗旱保墒、防碱保苗的经验,给综合开发盐碱地开辟了广阔道路。这些行之有效的增产经验,辅以机械化技术,是盐碱地棉花增产的重要措施。一、主要增产措施人们在长期与盐碱地斗争中,积累了许多治理盐碱的宝贵经验,其中包括工程措施、水利措施、生
The production of grain and cotton in the Heilongjiang River Basin has historically been low and unstable. Grain yield in recent years has been good after the rural contractual responsibility system was implemented. According to 1990 statistics, Hengshui area sown area of 8000000 acres of grain, with an average yield of 207 kilograms, cotton sowing area of 280 mu, average lint yield 38 kg. The average yield is obviously different from that in high-yielding areas. The main reasons are poor natural conditions, serious drought and waterlogging, and serious alkali disasters. Most of the saline-alkali lands are not fully exploited and their potential for production has not been fully realized. For a long time, many scientific and technical personnel and peasants have accumulated many experiences in drought and soil conservation and anti-alkali seedling protection in the course of harnessing and reforming dry and alkaline land, opening up a broad road for the comprehensive development of saline-alkali land. These effective stimulation experiences, supplemented by mechanized technology, are important measures to increase cotton production in saline-alkali land. First, the main measures to increase production People in the long-term struggle with saline, has accumulated many valuable experience in the management of salt, including engineering measures, water conservancy measures, students