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冷烂田是一种长期受冷水浸渍、泥温较低,土烂泥深的低产水稻土,广泛分布于南方丘陵山地的低洼地段、湖泊周围及塘堰下部,约占全国低产水稻土的30%。据调查,这类田在南部县的面积达6.46万亩,占当地水稻的21.5%。低产水稻土的91.2%。常年只种一季中稻,亩产300—350公斤,比高产田块低200—250公斤,是当地重要的低产土壤之一。了解冷烂田的低产原因,采取相应的改造措施,对提高大面积的粮食产量,具有重要意义。
Coldly stubborn field is a low-yielding paddy soil that has long been affected by cold water, low mud temperature and deep mud. It is widely distributed in low-lying areas in the hilly hills of the south, around the lakes and in the lower part of the pond weir, accounting for about 30% of the low-yield paddy soil in the country. According to the survey, the area of such fields in southern counties reached 64,600 mu, accounting for 21.5% of the local rice. 91.2% of low yield paddy soil. Perennial only one season rice, 300-350 kilograms per mu, 200-250 kilograms lower than the high-yield plots, is one of the important low-yielding soil. It is of great significance to understand the reasons for the low yield in the coldly harvested fields and to take appropriate measures to improve the output of large-area crops.