Impact of fertilizations on grain yield in barley plant grown on soil type Vertisol

Abstract

Tests were carried out on stationary field trial, soil type vertisol in the process of degradation, characterized by low pH (pH<5.0). The dose of nitrogen was 80 kg/ha N, which was administered in combination with phosphorous and potassium fertilizer. The average grain yield and 1000 grain weight of all treatments in 2010/11 growing season was significantly greater than in 2009/10, mostly as the result of highly favourable weather conditions at major stages of plant development. The yield, thousand grain weight and test weight of barley significantly varied across years and treatments. Barley yield was the highest in the NP1K and NP2K (4.171 and 4.318 t/ha) treatments. Variance analysis showed statistically very significant differences for grain yield and test weight between the vegetation seasons and very significant differences for grain yield and 1000 grain weight between the effects of fertilization. Variance analysis showed significant differences for yield between the interaction of the vegetation seasons and variants of fertilization.