Impact of Liming and Fertilization on Grain Yield and Utilization of Nitrogen and Phosphorus in Barley Plants Grown on Soil Type Pseudogley

Abstract

This paper presents the results of studying the influence of liming and fertilization on yield and utilization of nitrogen and phosphorus in tested genotypes of winter barley grown on soil (type pseudogley) with low pH values. During the three-year long investigation was carried out on the field of Agricultural-chemical school "Dr. George Radic" at the place Kraljevo. The results indicated that the highest effect to yield and coefficient of utilization of N and P2O5 were obtained by application fertilizer prepared by use of NPK, lime and manure (N- 80 kg ha-1, P2O5 -100 kg ha-1, K2O-80 kg ha-1 + CaCO3-5000 kg ha-1 + manure – 20000kg ha- 1). On the base of studied parameters the barley cultivar NS565 was more tolerant to adverse chemical soil characteristics (low pH, low P2O5 content and a high content of mobile Al) and can be recommended as a suitable genotype for barley production on acid soils, especialy after liming of soil.

U radu su prikazani rezultati proučavanja uticaja kalcizacije i đubrenja na prinos i iskorišćavanje azota i fosfora ispitivanim genotipovima ozimog ječma na zemljištu niske pH vrednosti tipa pseudoglej. Trogodišnja istraživanja su izvedena u lokalitetu Kraljeva na imanju Srednje poljoprivredno-hemijske škole "dr Đorđe Radić". Dobijeni rezultati su pokazali da je najveći ekekat na prinos i koeficijent iskorišćavanja N i P2O5 iz đubriva ostvaren kombinovanom upotrebom NPK, krečnog i stajskog đubriva (80 kg Nha-1, 100 kg P2O5ha-1, 80 kg K2Oha-1+5.0 t CaCO3ha-1+20 tha-1 stajnjaka). Na osnovu proučavanih parametara sorta ozimog ječma NS 565 je bila tolerantnija na nepovoljne hemijske karakteristike zemljišta (niska pH, nizak sadržaj P2O5 i visok sadržaj mobilnog Al) i može se preporučiti kao pogodan genotip za proizvodnju ječma na kiselim zemljištima, naročito posle njihove kalcizacije.