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我国今后农业增产的途径主要是靠提高现有耕地的单位面积产量和增加复种指数。需要采取的措施主要是排除土壤障碍因素和提高土壤肥力。本文仅就土壤肥力的概念和作者多年研究结果,认为培肥土壤既要研究其体质,也要研究体型;既要研究胶体及其复合体,也要研究微团聚体;既要适应作物生长的需要,也要适应环境条件的变化。土壤水、肥、气、热的保持和供应问题是土壤肥力研究的中心。单项研究和综合研究应相互补充,方可比较全面地发挥土壤的生产潜力。
In the future, the ways for increasing agricultural output in our country mainly depend on increasing the yield per unit area of existing cultivated land and increasing the multiple cropping index. The main measures to be taken are to eliminate soil barriers and improve soil fertility. This paper only on the concept of soil fertility and the author’s many years of research results, that the soil should not only study its constitution, but also to study the body; it is necessary to study the colloids and their complexes, but also to study micro-aggregates; both to adapt to crop growth Needs, but also to adapt to changes in environmental conditions. Soil water, fertilizer, gas and heat conservation and supply issues is the center of soil fertility research. Single studies and comprehensive studies should complement each other before they can fully develop the productive potential of the soil.