米醋中除含有1—5％具有刺激性气味的醋酸外,还含有许多植物生长所需要的其它营养物质。据报道,作物、蔬菜、葡萄叶面喷施米醋均有一定的增产效果。为了探索米醋对葡萄插条是否具有促进生根作用,今年春季我校果树八三级一班两个科研小组分 In addition to vinegar 1-5% has an irritating odor of acetic acid, but also contains many other plant growth and other nutrients needed. It is reported that crops, vegetables, grape leaf spraying rice vinegar have a certain effect of increasing yield. In order to explore whether the vinegar vinegar cuttings to promote rooting effect, this spring, my school eight or three class fruit trees two research groups