植物根引起的根际动态变化,从多方面影响着植物的营养状况乃至植物生长和发育.根际pH值是其中最主要和最活跃的因子之一.不同氮肥形态,不同植物种类和品种,不同的营养状况等是决定根系引起根际pH值变化方向和强度的主要原因,而根际pH值的改变又直接影响着根系的生长发育,根际养分动态以及根际微生物群落的种类、数量和活性等,从而间接的影响植物的生长. The rhizosphere dynamic changes caused by plant roots affect the vegetative status of plants and even plant growth and development in many aspects.The pH value of rhizosphere is one of the most important and active factors.Different forms of nitrogen fertilizer, different plant species and varieties, The different nutritional status is the main reason that determines the direction and intensity of root rhizosphere pH change. However, the change of rhizosphere pH directly affects the growth and development of root system, the nutrient dynamics in rhizosphere and the species and quantity of rhizosphere microbial community And activity, which indirectly affect plant growth.