葡萄生长中后期(花期至结果期),应进行叶面喷肥,对促进穗大、粒大、增产增收、改善质量等具有良好的作用。现介绍10种叶面肥的喷施法。1.尿素水溶液土质偏沙,地力薄,基肥不足,植株矮,长势弱,叶泛黄时可在葡萄开花期至结实期,叶面施0.7%～1.0%浓度的尿素水溶液,能明显使叶片转绿 Grape growth in the late (flowering to the fruiting period), should be carried out foliar spray, to promote spike large, large grain, increase yield, improve quality and so have a good effect. Is now introduced 10 kinds of foliar spray method. 1. Urea aqueous solution of sandy soil, thin, insufficient base fertilizer, short plants, weak growth, leaf yellowing in the flowering stage to the fruiting stage, the foliar application of 0.7% to 1.0% concentration of urea aqueous solution, can significantly leaves Turn green