RESPONSE OF SOYBEAN (Glycine max) TO MOLYBDENUM AND IRON SPRAY UNDER WELL-WATERED AND WATER DEFICIT CONDITIONS

Effects of foliar application of molybdenum and iron either individually or in combination on the yield properties of soybean crop were investigated under water deficit condition at research farm of Sari Agricultural Sciences and Natural Resources University, Sari, Iran during the cropping season of 2014. This experiment was laid out in factorial arrangement based on completely randomized block design with three replications. The two irrigation regimes were used (Irrigation after 65 and 130 mm evaporation from Class A pan) as primary factors while spray application of micronutrient (water as control Fe, Mo and Fe + Mo) were considered as the secondary factors. Result of study revealed that drought stress and micronutrient sprays have effect on all studied parameters such as pod number, seed number, yield and weight of 1000 seeds. Also, the interactions were statistically significant among studied parameters. According to the results drought stress severely impressed the number of pods, total seed numbers, seed yield, seed protein and seed oil. Furthermore, using of micronutrients spray particularly Fe+Mo on soybean crop is environmentally acceptable strategy and reduced the damages caused by water deficit condition.