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农用稀土化合物应用于农业生产,在我国正逐步推广,但稀土在牧草生产上,特别是豆科牧草及其相应的根瘤菌(Rh)等方面的应用研究则刚刚开始。为探讨稀土化合物对牧草根瘤菌生殖状态的影响,寻找配合根瘤菌剂应用稀土化合物的适宜剂量,为豆科牧草飞机播种时应用稀土提供方法和依据而进行本项研究。试验材料有苜蓿根瘤菌、红三叶草根瘤菌、白三叶草根瘤菌和沙打旺根瘤菌。稀土化合物为 RECl_3,含 RE_2O_342%。用其配制成浓度为0、100、200、300、500和1000ppm(以RE_2O_3计)的溶液备用。
Agricultural rare earth compounds used in agricultural production, is gradually being promoted in our country, but the application of rare earth in pasture production, especially leguminous pasture and its corresponding Rhizobium (Rh) has just begun. In order to explore the effects of rare earth compounds on the reproductive status of Rhizobium sp., The suitable dosages of rare earth compounds used in combination with Rhizobium were studied. The study was conducted to provide the methods and basis for application of rare earths for planting Legume pasture. The test materials were alfalfa rhizobia, red clover rhizobium, white clover rhizobium and sand Wang Wan Rhizobium. Rare earth compounds RECl_3, containing RE_2O_342%. Use it as a solution at concentrations of 0, 100, 200, 300, 500 and 1000 ppm (calculated as RE 2 O 3).