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自然免耕是防止水土流失的一种经济而有效的措施。人工模拟自然土的免耕状态,保证耕作土在连续植被、连续免耕、连续浸润和连续垄作的情况下,使土壤长期被毛管水所浸润,土壤结构始终处于通气、透水、导温和保肥状态,抗拒外层大气候巨变的不良影响,解决土壤内部水、热、气、肥的矛盾。这不仅是提高土壤肥力的有效措施,也是保证滴水归田,防冲、防旱的根本措施。
Natural no-till is an economical and effective measure to prevent soil erosion. Artificial simulation of natural soil no-tillage, to ensure continuous cultivation of tillage soil, continuous no-tillage, continuous infiltration and continuous ridge conditions, the soil is long-term capillary water infiltration, the soil structure is always in the ventilation, water permeability, temperature and fertilizer State, resist the adverse effects of the great changes in the outer atmosphere, to solve the contradiction between the soil water, heat, gas and fertilizer. This is not only an effective measure to increase soil fertility, but also a fundamental measure to ensure that dripping water will return to fields, prevent erosion and prevent drought.