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为了寻找紫云英根瘤菌肥料的代用品,我们经过多年试用紫云英盛花期表土拌种取得了与根瘤菌肥料接种同样的增产作用,一般能增产30％左右。拌种用泥应选择盛花期植株生长较好的地块,挖取表土二寸左右阴干,在当年秋播时按每亩量20斤与种子掺和下田,有利齐苗壮苗,并能较多较早地形成有效根瘤和地表根瘤,提高固氮能力。花草泥虽用量多,但由于来源广,根瘤活性好,还能安全施用过磷酸钙,能充分发挥磷肥的增产效果,特别对新区种植效果更为突出。
In order to find the alternative of Rhizobium japonicum fertilizer, we tried the same experiment to increase the yield of rhizobium fertilizer after inoculation of flowering topsoil of Astragalus membranaceus for many years, and generally increased the yield by about 30%. Mud mixed with mud should choose the full bloom flowering plants grow better plots, digging about two inches of surface soil dry shade, when the amount of 20 kg per acre in the autumn and seed blending Shimoda, favorable Qi Miao Zhuang Miao, and more More early formation of effective nodules and surface nodules, improve nitrogen fixation capacity. Although the amount of flowers and plants mud, but due to a wide source, nodulation activity, but also the safe application of superphosphate, phosphate fertilizer production can give full play to the effect, especially for the new planting more prominent.