The important significance of applying molybdenum fertilizer in increasing yield of leguminous crops in agriculturalpastoral economy area

The experiments of applying molybdenum fertilizer have been carried out in a typical area of agricultural－pastoral economy in Duolun County,Inner Mongolia.It is shown that content of available molybdenum in most of soils is low in that area.Molybdenum is an important element for leguminous crops to be utilized by nodule bacteria in nitrogen fixation and the crops are planted in a large area in that region.The yields of broad bean and kidney bean are increased by 33.7%～30.2% and 12.4%～9.4% by applying molybdenum.The practice followed in a large area will have major significance to the economic development in Northwest China.