紫云英(红花草子)是黄冈地区水田的主要绿肥作物,也是双季稻的主要肥源。紫云英绿肥鲜嫩多汁,含有丰富的氮素等肥分,在土壤中容易腐烂分解,为作物吸收利用。因此,发展紫云英是解决双季稻肥源问题的经济有效的办法。从稻田改制的趋向看,发展水田绿肥,“以田养田”的唯一出路,是提高绿肥单产以增加总产。近两年来,针对这一问题,我们用紫云英根瘤菌肥拌种作了一些肥效试验。试验分两部分:一是菌肥拌种对紫云英增产效果试验;一是几种不同的菌肥制剂拌种肥效比较试验。现将试验结果整理报导,供参考。 Astragalus (safflower grass) is the main green manure crop paddy fields in Huanggang area, but also the main source of double crop rice. Ziyunying green manure juicy, rich in nitrogen and other fertilizer, decomposed easily decomposed in the soil for crop absorption and utilization. Therefore, the development of Astragalus is to solve the problem of double-cropped rice fertilizer cost-effective approach. From the perspective of the restructuring of paddy fields, developing paddy green manure and the only way to cultivate paddy fields is to increase yields of green manure so as to increase total output. In the past two years, in response to this problem, we made some fertilizer efficiency tests with the seedlings of Astragalus sinicus. Test is divided into two parts: First, bacterial fertilizer dressing on the effect of the test of the increase of Astragalus sinicus; First, several different bacterial fertilizer dressing seed dressing efficiency comparison test. The test results are now reported for reference.