一种新的桥接法果树生产中常采用植幼树来桥接患腐烂病的大树，但新植幼树要经过一段时间的缓苗期才能逐渐向病树输送营养，而且在定植后的３年根系功能较弱，不能及时地满足多年生大树对营养的需要。为此，我们进行了幼树下接根、上桥接的试验，并取得较理想的效果。一种... A New Bridging Tree In the production of fruit trees, the planting of young trees is often used to bridge the decayed trees. However, the newly planted saplings will gradually deliver nutrients to the diseased trees after a period of time during the rejuvenation period. After 3 years of planting Root function is weak, can not meet the perennial tree nutrition needs. To this end, we conducted a young tree under the root, the test on the bridge, and achieved more satisfactory results. A ...