1996～ 1 997年在大田条件下研究了微量元素B ,Zn对伏桃干物质动态累积规律及其对纤维产量品质的影响。结果表明 :微量元素B ,Zn均有利于铃壳和种子干物质的增加 ,B对棉纤维干物质的累积有明显的促进作用 ;B有助于棉纤维的单强、成熟度和马克隆值的提高 ,Zn则有助于纤维细度的增加 ;另外 ,B ,Zn对棉花产量构成因素的衣分和铃重也有一定的促进作用。 Under the field conditions from 1996 to 1997, the dynamic accumulation of trace elements B and Zn and the effects on the yield and quality of Fava peach were studied. The results showed that both trace elements B and Zn were beneficial to the increase of dry matter of boll shell and seed, while B promoted the accumulation of dry matter of cotton fiber obviously; B could contribute to the single strongness, maturity and micronaire of cotton fiber , While Zn increased the fineness of fiber. In addition, B and Zn also promoted cotton yield and cotton boll weight.