Advances in grass phosphorus nutrition and tolerance to low phosphorus

Phosphorus is one of the most important nutrients for forage so that soil phosphate fertility is the limiting factor for the growth of forage. This paper summarized the impacts of phosphorus on forage, compared the effects of combined applications of fertilizers on forage, explained the adaptability of forage to low-phosphorus stress, introduced inoculation of fungus on forage and cultivation of phosphorus efficient forage varieties which can improve the adaptability to low-phosphorus. The usage of molecular biology techniques to screen phosphorus efficient forage breeding and germplasm resources is the key to solve the problem of the utilization of effective phosphorus for forage.