尿基复混肥中缩二脲对小麦和玉米生长的影响及其肥效研究

Effect of Biuret in Urea-Based Compound Fertilizers on Growth of Wheat and Corn and Study of Fertilizer Efficiency

研究了尿基复混肥中缩二脲在不同土壤上对小麦和玉米生长的影响。试验结果表明:作物在不同性质土壤上对缩二脲的敏感性趋势为碱性土>中性土>酸性土;小麦对缩二脲敏感性强于玉米;尿基复混肥中缩二脲质量分数应控制在1.0%以下较为合适,对大多数作物生长不会产生毒害。

A study is made of the effect of biuret in urea-based compound fertilizers on the growth of wheat and corn in various soils. The results of experiments show that crops in soils of different properties have a trend of sensitivity to biuret as follows： alkaline soil 〉 neutral soil 〉 acid soil; the sensitivity to biuret of wheat is greater than that of corn ; it is appropriate that the mass fraction of biuret in urea-based compound fertilizers be controlled at below 1.0% , and then it will not be toxic to the majority of crops.