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河泥是上海郊区传統的有机肥品种之一。根据近年来对几个郊县的統計,每年冬季,冬作物直接施用河泥的面积,約占綠肥播种面积的30%,油菜播种面积的60%和三麦播种面积的80%左右。几年来,不但河泥的用量在继续增长,而且其积制施用的方法,也有很大发展。施用河泥,已經成为与化肥配合的,現阶段施肥制度中的一項重要内容。河泥,因其成肥过程往往与特定的生物土壤条件相联系,所以是一种典型的地方性
River mud is one of the traditional organic fertilizer varieties in the suburbs of Shanghai. According to the statistics of several counties and counties in recent years, the annual direct winter river application of winter mud crops accounts for about 30% of green manure sown area, 60% of rapeseed sown area and about 80% of sown area. In recent years, not only the amount of river mud continues to grow, but also its method of product application has greatly developed. The application of river mud has become an important part of the fertilization system at the current stage in cooperation with chemical fertilizers. River mud, because of its fertilization process is often associated with specific biological soil conditions, it is a typical local