土壤养分供应与作物需求间的矛盾是影响有机种植作物产量的技术瓶颈之一。
Conflict between soil nutrient supply and crop demand is one of the technical bottlenecks influencing organic crop production.
探讨了森林地层在水土保持、养分供应、促进生物呼吸强度和土壤发育等方面的作用。
The function of forest floor on water conservation, nutrient supply, promoting biological respiratory intensity and soil development are discussed.
请简要说明营养液栽培与土壤栽培在植物养分供应上的不同点。
Please show the brief differentia between hydroponics and soil culture.
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