深脚烂泥田、大肥田、冷浸田等低产田块特点是：长期受冷水浸渍，水土低温，或兼有土层稀烂，冷泉水上涌或旁渗，或以冷水串灌。由于光照短，土温低，加之土层稀烂、有效养分缺少、还原性有毒物质积累过多，致使水、热、气、肥不协调，造成作物减产、低产。“半旱式耕作法”的? Deep muddy fields, big fat fields, cold paddy fields and other low-yield plots are: long-term cold water immersion, water and soil temperature, or both soil pulverized, cold spring water infiltration or by-pass, or cold water string. Due to the short light, low soil temperature, coupled with soil pulverized, lack of effective nutrients, reductive accumulation of toxic substances, resulting in water, heat, gas, fertilizer incompatibility, resulting in crop production, low yield. “Semi-arable farming method”?