Effect of super absorbent polymer on quantitative and qualitative traits of cowpea (Vigna unguiculata L.) in low irrigation management conditions
IntroductionBeans are the major part of the diet of many people in the world, because the large amounts of protein in combination with cereal grains could provide a valuable source of food.Iran is located in dry and semi-arid region, and water deficit due to the drought are observed in most parts of Iran.Therefore, implementation of irrigation tech