Effect of Different Kinds of Fertilizer on Soybean Physiological Characteristics and Quality

To investigate the influence law of fertilizer on soybean physiological characteristics and quality,under field condition,Heinong48 was used as material,the treatments as follows:no fertilizer,conventional fertilizer,organic fertilizer,controlled release urea and controlled release compound fertilizers,the effects of soybean chlorophyll,above ground biomass,plant height and quality were studied.The result showed that organic fertilizer had the most important influence on improving soybean height,controlled release fertilizer took the second place.Controlled release compound fertilizer had the most important influence on raising soybean chlorophyll content,followed by controlled release urea.Above ground biomass of maturity compared with no fertilizer the difference reached significant level.Different fertilizer could improve the quality of soybean seed,organic fertilizer made the most raising in protein of soybean seed,except for controlled release urea,the difference between it with other treatments reached significant level.Controlled release compound fertilizer made the most raising in fat content of soybean seed,compared with no fertilizer the difference reached significant level.Different fertilizer could improve total of protein and fat of soybean seed,compared with no fertilizer the difference reached extremely significant level.