蔬菜根系间的有益真菌可使根系吸收养分的面积增加4～5倍。这类真菌在土壤中是普遍存在的,但在土壤消毒后几乎都被杀死。土壤中磷浓度过低时,根系无法吸收磷,这类真菌可帮助根系吸收磷。含磷量很低的土壤,种植受有益真菌“感染”的作物2～3茬后,就不再缺磷了。目前人们尚无法大量提供这类真菌,但是,若把植株先种在含有这类真菌的土壤内,再移植到消过毒的土壤中,受这类真菌“感染”过的植株就能承受移苗时造成的损伤,且在天气干旱后,根系恢复生长也较快。这类真菌能产生甘露醇,从而抑制了植株中酶制造不溶的碳水化 Beneficial fungi between the roots of vegetables can root nutrients to increase the area of ​​4 to 5 times. These fungi are ubiquitous in the soil, but are almost killed after the soil is disinfected. When phosphorus is too low in the soil, the roots can not absorb phosphorus, and these fungi help the roots absorb phosphorus. In soils with very low levels of phosphorus, growing plants infected with beneficial fungi is no longer deficient in phosphorus after 2 or 3 crops. It is not yet possible to provide such fungi in large quantities, but plants that are “infected” with such fungi can survive if they are first planted in soils containing these fungi and transplanted into sterile soil Miao caused damage, and in the dry weather, the root system to restore growth faster. These fungi produce mannitol and thus inhibit the production of insoluble carbohydrates in the plant