Research article EFFECT OF PHOSPHORUS FERTILIZER ON PLANT HEIGHT, SEED WEIGHT AND NUMBER OF NODES IN SOYBEAN

Soybean has the highest amount of proteins among the legumes. The application of fertilizers is one of the primary methods for improving the availability of soil nutrients to plants. Fertilizing can change rates of plant growth, maturity time, size of plant parts, and phytochemical content of plants. Phosphorus deficiency can limit nodulation by legumes and P fertilizer application can overcome the deficiency. The experiment was conducted at the miandoroud sari (in Iran). Factor A included bacterium azospirillum (A1: insemination; A2: No insemination), factor B included Phosphate fertil 2 (B1: insemination, B2: No insemination) and factor c included phosphorus fertilizer (C1: No insemination, C2: 50kg). Analysis of variance shows that Azospirillium brasilense has a significant effect on Plant height and seed weight per plant at 1% level.