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腐殖质营养学说
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腐殖质营养学说
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腐殖质营养学说
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theory of humus nutrition
腐殖质营养学说
认为土壤肥力取决于腐殖质的含量,腐殖质是土壤中唯一的植物营养物质;而矿物质只是起间接作用,可以加速腐殖质的转化和溶解,使其变成易被植物吸收的物质的学说。
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surplus insurance market
surplus labor under the socialist system
surplus process
surplus share reinsurance
surplus value
surplus variable
Surprise
surprise examination paradox
surrealist film
surrealistic theatre
surreal number
surrelaxation
surrelaxation method
Surrender Ceremony in Nanjing
surrender risk
Surrogacy
surrogate
surrogate endpoint
surrogate fuel
surrogate loss consistency
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surrogate reference material
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