施肥,一方面在給與植物生長所必需的養分;另一方面增加土壤中的有機質,改良土壤結構。礦物質肥料,僅能達到前一目的;因此,礦物質肥料和有機肥料合理的配合施用,不但可以滿足這兩種作用,並使礦物質肥料得以充分發揮其效力。這是蘇聯先進農業科學技術「牧草大田輪作制」中一個不可分離的環節,就是正確的施用有機肥料和礦物質肥料。目前多數國營農場,是在鹽碱荒地上建立起來的;一般土壤中缺乏有機質,故必須補給有機 Fertilization, on the one hand, gives the necessary nutrients for plant growth; on the other hand increases the organic matter in the soil and improves the soil structure. Mineral fertilizers, can only achieve the previous goal; Therefore, the rational use of mineral fertilizers and organic fertilizers, not only to meet these two roles, and make mineral fertilizers to give full play to their effectiveness. This is an inseparable link in the advanced agricultural science and technology of the Soviet Union in the field of forage field rotation, that is, the proper application of organic fertilizers and mineral fertilizers. At present, most state-owned farms are built on saline-alkali wasteland. In general, the soil is deficient in organic matter and therefore must be replenished with organic