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钼是植物生长发育所必需的微量元素,特别是豆科作物,使用钼肥能明显地促进根瘤菌形成,提高固氮能力。对长期未施用过钼肥和中低肥土壤,在播种红花草籽时使用钼肥拌种,对促进红花草的生长发育和增加鲜草产量有极明显效果。我场使用钼肥系购自福州冶炼厂产品,名称为仲钼酸铵,分子式为(NH_4)_6MO_7O_(24)·4H_2O,含钼量50％以上,水溶物2％以下。按1斤紫云英种子用1克钼酸铵加水25克的比例,把红花籽种和钼酸铵水溶液混和用手用力搓种片刻,使红花籽种皮全部湿润为止,边拌种边播种,也可以在拌种后再接根瘤菌或加磷肥拌种。使用钼酸铵拌种的红花出苗整齐,叶色深绿,株高、茎粗和未拌钼酸铵的对比,我场1982、1983两年试验,同在翻耕前3月27日调查,用钼
Molybdenum is a trace element necessary for the growth and development of plants, especially leguminous crops. The use of molybdenum fertilizer can obviously promote the formation of rhizobia and enhance the nitrogen-fixing ability. For the long-term application of molybdenum fertilizer and medium-low-fat soil, sowing safflower seeds using molybdenum fertilizer seed dressing has great effect on promoting the growth and increasing the fresh grass yield of safflower grass. My field using molybdenum fertilizer was purchased from Fuzhou smelter products, named ammonium paramolybdate, molecular formula (NH 4) _6MO_7O_ (24) · 4H_2O, molybdenum content of more than 50%, water-soluble matter below 2%. Press 1 kg of Chinese milk vetch with 1 gram of ammonium molybdate and 25 grams of water ratio, the safflower seeds and ammonium molybdate solution mixed with a hand rubbing force for a moment so that all the safflower seed coat moist, while the seed dressing Sowing, you can also join the rhizobia or seed dressing and phosphate fertilizer. The use of ammonium molybdate dressing Safflower tidy, dark green leaves, plant height, stem diameter and unmixed ammonium molybdate comparison, my field 1982,1983 two years of testing, with tillage before March 27 investigation , With molybdenum