EFFECT OF VINASSES, MOLASSES AND MINERAL FERTILIZATION ON NODULATION AND GROWTH OF COMMON BEAN (PHASEOLUS VULGARIS L.) GROWN IN SANDY RECLAIMED SOILS

Abstract

The present work was conducted to achieve the following aims: Evaluate the effect of both individual and combined applications of either of molasses or concentrated vinasse with mineral fertilizers i.e. phosphoric acid and mixture of micronutrients (Fe-Zn-Mn-Cu-B-Mo), which added in equal five dosses at different growth times to two cultivars of common bean plants (Phaseolus vulgaris L.) i.e, Karnak and Nebraska grown in sandy soil under drip irrigation systems on: nodulations efficiency, dehydrogenase activities at growth period of 45 days. As well as the dry matter yield of common bean plants and was determined, at growth periods of 45 and 70 days. The obtained data of this study show that, the two local cultivars of common bean plants (Karnak and Nebraska) appeared a wide variations to the studied treatments. The fertilization treatments under study resulted in a significant increase of nodules number formed on the roots, dehydrogenase activity and dry matter yields, where the highest values were found with Nebraska cultivar compared with those of Karnak cultivar. Key wards: Common beans cultivars, Sandy soil Vinaasse, Molasses, Nodulation, Phosphorus and Micronutrients