钼是植物生长发育所必需的营养元素之一。特别是对于豆科植物,钼的供应是否充足,能明显地影响根瘤的形成及其固氮作用。以前的试验研究指出:一般作物对钼的需要量是很小的,在一般土壤上对水稻等粮食作物施用钼肥,增产效果不太明显;但在强风化、高度淋溶的缺钼土壤上,对豆科作物施钼则可能有较显著的增产效果。我场位于南昌市北郊的低丘红壤上,属亚热带气候,温暖多雨,土壤中的矿物分解较为彻 Molybdenum is one of the necessary nutrients for plant growth and development. Especially for leguminous plants, the supply of molybdenum is sufficient, can significantly affect the formation of nodules and nitrogen fixation. Previous experimental studies have pointed out that the demand for molybdenum in general crops is very small, and the application of molybdenum fertilizer to grain crops such as rice is not obvious in general soils. However, in strongly weathered and highly leached molybdenum soil , The application of leguminous crops molybdenum may have a more significant yield increase. My field is located in the northern subtropical red soil of Nanchang City, is a subtropical climate, warm and rainy, the decomposition of minerals in the soil more thoroughly