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随着我国农业生产的发展,微量元素肥料已得到广泛的应用.其中钼酸铵已由一种普通的化学试剂,变成农业上夺取高产的一种新型微量元素肥料.它可以使农作物出芽率高,长势好,籽粒饱满,也是土壤微生物和豆科植物的根瘤菌固定空气中氮的有关酶的必需组分.施用适量的钼肥,土壤微生物和根瘤菌的固氮能力将提高几十倍到几百倍.由此可见,钼肥对农业生产的重要作用.然而我们施入土壤中的钼肥,土壤对它的吸附性能的强弱直接影响着作物对钼的吸收.假如吸附性能差,吸附量就小,土壤经水浸泡或淋溶钼肥就会流失,植物吸收减少.另外也可根据饱和吸附量的大小,可适量、分期因地适宜施入钼肥,充分发挥微肥的经济效益.因此,我们研究土壤对钼的吸附性能是有重要意义的.
With the development of agricultural production in our country, trace element fertilizers have been widely used, of which ammonium molybdate has become a new type of trace element fertilizer with high yield in agriculture by an ordinary chemical reagent, which can make the rate of crop emergence High, good growth, full grain, but also the soil microorganisms and legumes Rhizobium nitrogen immobilized air essential components of the enzyme.Applying an appropriate amount of molybdenum fertilizer, soil microorganisms and Rhizobium nitrogen fixation capacity will increase several times to Hundreds of times.Thus, Molybdenum fertilizer on the important role of agricultural production.However, we applied to the soil of molybdenum fertilizer, the soil adsorption capacity of its direct impact on the absorption of molybdenum crops.If the adsorption performance is poor, The amount of adsorption is small, the soil is soaked in water or leaching molybdenum fertilizer will be lost, reduce plant absorption, but also can be based on the size of the amount of saturated adsorption may be appropriate, staging due to the appropriate application of molybdenum fertilizer, give full play to the economy of fertilizer Therefore, we study the soil adsorption of molybdenum is of great significance.