in order to evaluate physiological and morphological characteristics and yield of soybean (glycine max l.) cultivars under different planting ratios a field experiment was conducted based on randomized complete block design with four replications at the gaem shahr agricultural research centre of mazandran province, iran, during 2008. two soybean cultivars (032 and sari) were planted in row inte...

Twin-row ridge cultivation is widely used in soybean planting northern China. In order to find the optimal parameters of agronomy, twin-row planter with subsoiling was designed. Field experiments were conducted evaluate effects plant arrangements and cluster densities on growth grain yield under different tillage treatments. The experiment a randomised complete block design consisting 20 treatm...