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当前位置: 首页 > 文章 > 大豆需水规律与灌溉增产效果研究 大豆科学 1983 (4) 277-285
Position: Home > Articles > STUDIES ON THE WATER REQUIRMENT OF SOYBEANS AND THE EFFECT OF IRRIGATION ON THEIR GROWTH AND YIELD Soybean Science 1983 (4) 277-285

大豆需水规律与灌溉增产效果研究

作  者：
常耀中;宋英淑
单  位：
黑龙江省农业科学院大豆研究所
摘  要：
试验表明:大豆是需水较多的作物。为了保证其生育有一定的繁茂度,和促进生殖器官的健壮生长,增加开花、结荚数,一般在黑土地区苗期至分枝期土壤含水量占最大持水量的65—70％以下时,就要进行灌溉。但此时灌水量不宜过多,过多就会降低地温,影响生育或招致节间伸长,生育期易徒长倒伏。大豆在开花之后,鼓粒以前需水最多,土壤含水量在占最大持水量的85％时,生育最佳。但在大田条件下很难达到,一般占最大持水量的80％,就可满足需要。鼓粒后需水量虽逐渐减少,但也不能低于占最大持水量的75％,当降到70％以下时,即要进行灌溉。灌溉方法因地势和条件而不同。一般平地可沟灌,岗地需要喷灌,以满足大豆对水分的需要。
译  名：
STUDIES ON THE WATER REQUIRMENT OF SOYBEANS AND THE EFFECT OF IRRIGATION ON THEIR GROWTH AND YIELD
作  者：
Chang Yaozhong Song Yingshu (Scybean Institute cf Heilnngjiang Academy of Agricullural Sciences)
摘  要：
Soybean is a crop that uses more water. In order to promote the growth of leproductive organ and increase the number of flowers and pods, irrigation should be conducted when the relative humidity in soil less than 65% from seeding stage in chernorems. But it' s not suitable to irrigate more, and it needs to control the elongation of internodes so as to prevent lodging in later growing period.During the period from flowering to pod filling, both vegetative and reproductive growth are the most vigorous, and the water consumption of soybean is the greatest,too. If the relative humidity in the soil can be maintained above 85%,both the growth and seed yield of soybean will achieve the highest level. Seed filling can be promoted, abortive seeds can be reduced and the 100 seeds weight and yield can be increased if water supply is plenty enough.Irrigation should be done if the water content of soil is decreased below 65% or 70%.

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