潜育性稻田的特点:一是土层深,犁底层以下呈青灰色;二是地下水位高,水冷泥温低;三是通透性差,有毒物质多。改造潜育性稻田,采用开沟治潜方法,并辅之以农艺、生物措施,效果明显。 1992年冬,我县以冷市镇的河丘等5个村作为农业以工代赈改造中低产田项目区。改造面积70.9公顷。低 The characteristics of gneissic rice fields: First, deep soil, the plow bottom was blue-gray; Second, the ground water level is high, cold mud temperature is low; Third, poor permeability, toxic substances. Transformation of the fertile rice fields, the use of ditching method to rule potential, supplemented by agronomic, biological measures, the effect is obvious. In the winter of 1992, in our county, 5 villages, such as the hills of Lengshu Town, were rehabilitated as medium and low-yield fields in the form of food for work. Reconstruction area of ​​70.9 hectares. low