桔园优质绿肥──日本菁日本菁为豆科多年生夏季绿肥。我市农垦企业从１９９１年引进试种子柑桔园内，经过连续４年观察，我们认为日本菁为直立性绿肥作物，比印度虹豆等蔓生性绿肥更有优势，它不会缠绕在果树上，不影响树体的正常生长，对创造良好的桔园小气候具有更为优... Orange Garden high-quality green manure ─ ─ Japan Jing Japanese beans for perennial summer green manure. Our city reclamation enterprises introduced test citrus orchard from 1991, and after 4 consecutive years of observation, we think that Japanese cinnabar is an upright green manure crop, which is more advantageous than the creeping green manure such as Indian rainbow bean, which will not be wound on fruit trees , Does not affect the normal growth of the tree body, to create a good citrus garden microclimate has more excellent ...