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大豆是需水较多的作物,其开花至鼓粒期的水分供应量决定大豆产量。目前大豆灌溉面积很少,基本是依靠自然降水。以大豆丰产水分指标衡量,八五八农场大豆花期水分保证率仅占5%左右,约20年出现一次。该场多年平均降水量为568.7毫米,表面看不算少,但真正降到关键时期的却很少。在生产实践中主要是通过耕作措施进行土壤水分管理,其核心是多蓄水,如在白浆土上,1由地
Soybeans are crops that require more water, and the amount of water they supply during the drumming period determines the yield of soybeans. Soybean irrigation area is very small, basically rely on natural precipitation. Measured by the indicator of high yield of soybean, the moisture guarantee rate of the flowering soybean of the “588” farmland only accounts for about 5% and appears once in about 20 years. The average annual rainfall of 568.7 millimeters, the surface is not small, but the real decline to the critical period is very small. In production practice, soil moisture management is mainly through tillage measures, and its core is multiple water, as in white soil, 1