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保水剂
释义
保水剂
Encyclopedia
农学
保水剂
释
water-retaining agent
保水剂
一种不溶于水,具有膨胀性且吸水力强的物质。能吸收自身重量几百倍的纯水,并可缓慢释放供作物利用,且能反复吸水。施用于土壤可减少水分养分流失,调节水、肥、气、热状况,改善肥力结构,是较好的土壤改良剂。
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Temperate Semi-Shrubby Desert
temperate steppe
temperate steppe desert
temperate vegetation
temperate zone
temperate zone in China
Temperature
temperature
temperature acclimation
temperature adaptation
temperature-and-humidity control
temperature and humidity independent control of air-conditioning system
temperature and humidity test
temperature and relative humidity standard for archives
temperature-area apportionment method
temperature boundary layer
temperature boundary layer at crystal growth interface
temperature calibration technology using comparison method
temperature calibration technology using fixed- points
temperature classification and thermal ageing test of electrical insulation
temperature coefficient
temperature coefficient of reactivity
temperature coefficient of respiration
temperature compensation
temperature condition forecast
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