豌豆根瘤固氮能促使当料和后作增产,这种传统的观点,拥有众多的赞颂者。但也有些研究人员用第一手资料对固氮效能问题提出相反的见解。1980—81年我们谨就这个问题做了一些有关的研究。设计与方法试验设盆栽与大田对比试验两项。土壤均为塿土,质地粘壤;pH7.8。盆土采自我院农作一站肥地(采前亩施厩肥8000斤)及院内近年垦种(未施肥)的瘠薄地。全氮量肥地土(0.0978％)与瘠薄土(0.0977％)的几相一致,有机质含量瘠薄土(1.650％)稍高于肥地土(1.598％)。速效磷含量肥土(9.27毫克/100克)比瘠薄土(3.70毫克/100克)高两倍多,水解氮含量 Nodulation of pea nodules can promote the yield and yield increase after this traditional point of view, with a large number of praise. However, some researchers use first-hand information to put forward the opposite view on nitrogen fixation efficiency. We have some relevant research on this issue in 1980-81. Design and Method Set potted plants and field contrast test two. Soil soil are clay, texture clay; pH7.8. Pond soil collected from our hospital one-stop fertilizer (pre-harvest mu manure 8000 kg) and the hospital reclaimed in recent years (not fertilized) barren land. The content of total N fertile soil (0.0978%) was consistent with that of barren soil (0.0977%). The organic matter content of barren soil (1.650%) was slightly higher than that of fertile soil (1.598%). The available P content of soils (9.27 mg / 100 g) was more than twice that of barren soil (3.70 mg / 100 g), and the hydrolyzed nitrogen content