Działanie fosforu na glebach wyczerpanych z tego składnika

In the conditions of pot experiment with maize and spring triticale the influence of high doses of phosphorus on the content of available phosphorus in two exhausted soils, received from long-term experiment (NK and CaNK), was investigated.The balance of phosphorus in the experiment showed that the expanses of fertilizers by unit of the increase of available phosphorus in soil was several time greater on the acid soil than on the liming one. In this situation the small doses of phosphorus fertilizer during long-time was more profitable than high doses during the short time.