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分析农业生产中各项措施的技术经济效果,明确农业各项技术措施的经济效用和最佳组合,是全面开创社会主义农业现代化新局面中急待研究的一个问题.水是水稻机体的重要组成部分,是水稻生长活动协调进行、利用生态环境因素(光、热、气、养分等)的重要条件和介质.水稻的增产相当部分决定于灌溉水的作用.但这个作用到底是多大?每亩地、每方水对水的稻谷增产、
Analyzing the technical and economic effects of various measures in agricultural production and clarifying the economic effectiveness and optimal combination of various agricultural measures is an issue urgently needed to be fully explored in the new situation of socialist agricultural modernization. Water is an important part of the body of rice Part of rice is an important condition and medium for coordinating the growth activities of rice and making use of ecological and environmental factors (light, heat, gas, nutrients, etc.) A considerable portion of the increase in rice production is determined by the role of irrigation water, but what exactly is this effect? To each side of the water yield of paddy rice,