MORPHO-AGRONOMIC AND COOKING QUALITY OF COMMON BEAN (PHASEOLUS VULGARIS L.) GROWN UNDER DIFFERENT NITROGEN SOURCES AND NITROGEN LEVELS

İngilizce (OpenAlex)

This study aimed to determine the effects of nitrogen (N) doses (0, 40, 80 and 120 kg N ha -1 ) and two different N fertilizer sources [ammonium nitrate (AN) and calcium ammonium nitrate (CAN)] on yield, yield parameters and quality of common bean (Phaseolus vulgaris L.) grown under the environmental conditions of Central Anatolia, Turkey.Experimental layout was randomized blocks with four replications, and the Önceler-98 bean variety was used as the plant material.The first pod height, number of pods per plant, number of beans per pod, grain yield, 100 grain weight, protein content, wet weight, dry weight, cooking time, water absorption index and swelling capacity of grains were determined.Nitrogen fertilizer sources caused a significant difference (P < 0.05) in 100 grain weight and number of branches per plant.Application of CAN increased the number of branches per plant and AN fertilizer increased the 100 grain weight.The results indicated that the effect of CAN fertilizer is greater compared to AN due to the providing calcium demand of plants grown in soils with low lime content.Higher effect of CAN fertilizer on plant growth can be attributed to the slower solubility of CAN than that of the AN fertilizer.The results concluded that 40 kg N ha -1 may be sufficient to obtain optimum yield, yield parameters and quality of bean, and higher doses of N (>40 kg N ha -1 ) applications are not needed.