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1小地块农田作业中存在的主要问题自农村实行土地承包到户地块划小之后,大型农业机械在丘陵山区及小地块区域逐步退出了农田作业,土地的耕、播、管、收等田间作业由畜力和小四轮、小手扶拖拉机承担。多年来,小型拖拉机的窄幅耕作(耕宽25～30cm),对土壤耕作层底部逐行碾压,致使形成10cm厚度的犁底硬层,如石板一样阻隔着深层土壤对天然降雨的1小地块农田作业中存在的主要问题
A small plots of farmland operations in the main problems Since the implementation of the rural land contract to small household planning, large-scale agricultural machinery in the hills and small areas gradually withdraw from the farmland operations, land farming, broadcasting, management, income And other field operations by animal power and small four-wheel, small walking tractor commitment. Over the years, the small-scale cultivation of small tractors (tillage width 25-30cm), the bottom of the tillage soil layer by layer rolling, resulting in the formation of 10cm thick plow hard layer, as the same as the stone block deep soil erosion of natural rainfall 1 The main problems in the operation of plots farmland