硼肥不同施用方法对油菜生长及产量的影响

摘要

针对洞庭湖地区油菜常规施硼(叶面喷施)效果不稳定的问题,于2004～2005年在沅江市北部垸田区进行了油菜不同施硼方法的试验.结果表明,硼肥基施加叶面喷施比单纯叶面喷施效果更佳,以基施7500 g/hm2+喷施1 500g/hm2增产效果最好,经济效益最高,可在生产上推广应用.%To solve the problem of instability of effect of spraying boron fertilizer on rape leaf surface in Dongting Lake area, a field experiment on different fertilization patterns of boron fertilizer, foliage spraying (FS) and basal application in soil and foliage spraying (BA+FS), was conducted in north of Yuanjiang city in 2004～2005. The results showed that the yield of rape in BA+ FS treatment was higher than that in FS treatment. The increasing effect on yield and economic benefit was highest under application boron fertilizer 7 500 g/hm2in soil and spraying 1 500 g/hm2 on leaf surface.