The effectiveness of quantitative and qualitative performance cultivars soybean planting date and zinc sulphate foliar application

To study the effect of planting date and zinc sulphate on two varieties of soybean as a split factorial design in a randomized complete block design with three plots was carried out in the region of Ilam. Factors examined include the original invoice date three plant Persian date 15, 25 July and 5 August and sub-plots sulfate treatment process includes foliar application the pod is early, early flowering and non-foliar application and sub-sub plots included L. 17, M.7 was. Results showed that the combination of zinc and planting date on grain yield and protein was significant. The interaction between planting date and variety was significant on grain yield, oil and protein. The highest grain yield of 1662 kg per hectare production to the M7 and culture in the history of Persian date 15 July and in foliar application at flowering stage, respectively. Most oil and protein content in the M7 and killed on 5 August respectively. L17 in the entire history of the cultures that produce less oil content. In both treatments, the highest oil content and protein in cultured on 5 August, respectively. The results of this experiment showed that the yield and production of oil and protein M7 is better and foliar application on yield and grain quality had a positive effect, as well as the delay in the cultivation of oil content and protein content increases.