UTICAJ RAZLIČITIH KOLIČINA ĐUBRIVA NA RAZVIJENOST VOĆNIH SADNICA

摘要

Over the 1980 - 1897. period the study was conducted on the effect of different NPK rates - 10: 12 : 26 + 3 Mg (250; 500; 750 and 1000 kg/ha), with the addition of 300 kg and 400 kg 27% KAN, under various soil and weather conditions in a nursery belonging to Fruit and Grape Research Centre at Cacak. The following conclusions may be inferred: Plant fertilization had different but mostly minor effects on the growth of pome and stone nursery trees. The results were poor on the locations continually used for nursery tree production as well as with fertile, but rather hard soil. The best results were obtained with the soil moderate production capacity, and on the locations wich were not previosly used in the production of nursery trees. In all the cases, the tree growth was in proportion to fertilizer rate applied. In most of the other orchards, development of nursery trees did not largely depend on fertilizer rates applied, and as a rule, the best nursery trees were on the locations where small fertilizer rates (250 and 500 kg/ha) were used. These fertilizer rates are, there fore, recommended to be used on a larger scale. Other fertilizer rates (600 and 800 kg/ha) are only to be applied in poor conditions of soil.%U toku 1980-1987. godine u rasadniku Instituta za voćarstvo u Čačku proučavan je uticaj različitih količina kompleksnog NPK đubriva na porast sadnica jabučastih i koštičavih voćnih vrsta. Proučavanja su vršena u brojnim rastilima i različitim zemljišnim uslovima.