بررسی شاخص‌های فیزیولوژیک سویا در شرایط کود بیولوژیک بارور2 و تریپل فسفات در تاریخ کشت‌های متفاوت

The Effect of fertilizer on physiological parameters was carried out in Hamden Applied-Scientific University of Jihad-Agriculture. The test was performed in factorial experiments based on a randomized complete block design with 3 replications. The first factor was sowing date in 3 levels and the second factor was fertilizer with 3 levels. In early step of growth, CGR was low and gradually increased and in 72th day (podding) reached to max. It was determined that NAR was high in early step of growth. Triple phosphate fertilizer had the highest effect on this index in all tree planting dates. Maximum LAD related to the first planting date and in all treatments the most effect was related to triple phosphate fertilizer. LAI diagram showed that it was very low in early step of growth to 38th day and after that; in 6-leaves step of this variety raised and in 65th to 78th day reached to max. SLA for the third planting date in early step of growth was the minimum. It was concluded that Triple phosphate fertilizer had the highest effect on physiological indexes of soybean.