我国南方,许多粮食专业户和农家,习惯在冬春或高温季节,罱河、塘泥或用河泥、塘泥拌稻草、麦秸、玉米秆等作沤肥和堆肥垩田。这样做,是有一定科学道理的。因为稻草、麦秸、玉米秆和河泥、塘泥含有丰富的硅肥,而硅肥对喜硅酸植物——水稻来说,则是获得高产必不可少的重要肥料之一。硅是禾本科作物必须的营养元素,其中需硅多而增产明显的是水稻。在日本、朝鲜等国施用硅肥受 In the south of our country, many food specialists and farmers are used to fertilizing and composing the chalk fields in the winter or spring or high temperature season. The river, the pond mud or river mud, pond mixed straw, wheat straw and corn stalks are used for composing the chalk fields. There is a certain scientific truth in doing so. Because straw, wheat straw, cornstalks and river muds, pond muds are rich in silicon fertilizers, silicon fertilizers are one of the important fertilizers that are essential for high-yielding plants for hi-silicate plants - rice. Silicon is a must-have nutrient element for gramineous crops, of which rice is the most important for increasing yield. In Japan, North Korea and other countries use silicon fertilizer by