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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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vacuum deposition
vacuum diagram
vacuum diffusion welding
vacuum discharging test method
vacuum distillation
vacuum distillation refining of rare earth
vacuum drum dryer
vacuum dry friction cold welding test
vacuum electron beam remelting
vacuum electron beam welding
vacuum electronic device
vacuum electronics
vacuum encapsulation
vacuum energy
vacuum etallurgy
vacuum etching
vacuum evaporation
vacuum evaporation technique
vacuum evaporator
vacuum expectation value
vacuum-extraction of the fetus head for midwifery
vacuum field
vacuum filter
vacuum filter equipment
vacuum filtration of mineral processing products
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