Soil amelioration and ample supply of nutrients in the form of fertilizers is needed to convert poor soils into productive agricultural land.
土壤改良和增施肥料可使这些土壤逐步转变成具有农业生产力的土壤。
Soil amelioration and ample supply of nutrients in the form of fertilizers is needed to convert poor soils into productive agricultural land.
土壤改良和增施肥料可使这些土壤逐步转变成具有农业生产力的土壤。
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