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滨海盐渍型水稻土是辽宁省主要农业土壤之一。主要分布在辽河下游的渤海沿岸,以营口、盘锦地区为主要代表,是我省主要粮食生产基地之一,因此,对滨海盐渍型高产水稻土最适有机质含量的研究,不论在理论上还是在生产上都有十分重要的意义。因此我们于2004、2005连续二年对盘锦鼎翔集团的盐渍型水稻土进行研究,高产田土壤最适有机质含量为2.0～3.0%,中低产田为0.4～2.12%,平均为1.36%。增加土壤有机质的积累,调节土壤有机质的转化,是培肥土壤的基本措施,是农业生产的重要任务。要维持和提高土壤有机质的水平,必须有预见性的施用各种有机物料。
Coastal saline paddy soil is one of the major agricultural soils in Liaoning Province. Mainly distributed in the lower reaches of the Liaohe River coast of Bohai, with Yingkou, Panjin as the main representative of the province is one of the main grain production base, so the coastal saline high yield paddy soil, the optimum organic matter content, whether in theory or In production have very important significance. Therefore, we studied the Panjin Dingxiang Group’s saline paddy soil for two consecutive years in 2004 and 2005. The optimum organic matter content of high yield soil was 2.0-3.0%, while that of low-yielding soil was 0.4-2.12% with an average of 1.36%. Increasing the accumulation of soil organic matter and regulating the conversion of soil organic matter are the basic measures for soil fertility and are an important task of agricultural production. In order to maintain and improve the soil organic matter level, there must be predictable application of various organic materials.