微量元素钼是植物生长发育过程中不可缺少的营养元素,是固氮酶和硝酸还原酶的重要组成部分。它能促使植物体内碳水化合物与蛋白质合成。试验证明,在粮棉油菜等作物上使用均有不同程度的增产作用,对根瘤菌和固氮菌的固氮作用尤为突出。我们在探讨如何提高绿肥产量时,除了接种固氮力高,竞争性强的根瘤菌株外,同时还注意改进接种方法,即用碳酸钙和粘着剂制成球化的紫云英种子。为进一步提高接种效果,在球化材料中掺入不同量的微量元素钼,于不同的土壤上进行室内盆栽试验,结果如下。一、材料与方法 (一)砂培:用化学浆料作粘着剂,球化 Trace elements molybdenum is an indispensable nutrient element in plant growth and development, and is an important part of nitrogenase and nitrate reductase. It can promote the body’s carbohydrate and protein synthesis. Experiments show that in the use of crops such as grain and cotton rape have different levels of yield-increasing role of nitrogen and nitrogen bacteria Rhizobium nitrogen fixation is particularly prominent. When discussing how to improve green manure production, we not only inoculated rhizobial strains with high nitrogen fixation capacity but also competitive vaccines, and at the same time we also paid attention to improving the inoculation method, that is, making the globular seeds of astragalus globularis with calcium carbonate and adhesive. In order to further enhance the inoculation effect, various amounts of trace elements molybdenum were incorporated into the spheroidized material, and pot experiments were carried out in different soils. The results are as follows. First, materials and methods (a) sand culture: with chemical pulp as a binder, ball