ROLE OF BIOFERTILIZERS IN IMPROVING COWPEA PRODUCTIVITY CULTIVATED IN SANDY SOIL

Cowpea is one of the fast-growing legume crops during summer and well suited to environmental conditions in Egypt. In addition, it a high-quality crop for feeding sheep cattle, also very important fodder dairy cows. this study, an experiment was designed evaluate effect biofertilizers on cowpea productivity cultivated under sandy soil at Ismailia Governorate. To reach such aim, identified Streptomyces strain used with mixture biochar, organic fertilizer several different treatments compared bradyrhizobia. The carried out Research Station, ARC. Results showed that number nodules 2nd cutting always higher than 1st cutting. No results were recorded indicating presence root plants which bradyrhizobia not added. fresh weight investigation as shown 16 inconsistent reflects importance biofertilizers. Percentages nitrogen crude protein among two cut percentage cut. Treatment T16 containing bradrhizobia actinomycetes biofertilizers, fertilizer, low concentration biochar appeared highest per Feddan all treatments. yield (Ton/Fed) dry has become same trend weight. As conclusion, treatment coded Bradyrhizobiumsp. (Vigna)and levels no. nodules, weight, weights shoots, (Ton/Feddan).