这里介绍一篇山地果园深翻的材料，短小然而具有说服力。在山岭薄地、河滩沙地甚至条件较好的平地果园，果树增产主要靠什么的问题，在我们的认识上并未解决好。栖霞县古村大队的同志也走过曲折的路。读一读这个小材料或看看这个小果园，会促使我们的认识来一个转折。要把劲使到地下，决心把土肥水搞上去。 Here is a brief introduction of a mountain orchard material, but convincing. In the thin mountain, beach sand and even better conditions in the orchard, fruit trees mainly depend on what the problem of production, in our understanding has not been resolved. Qixia ancient village brigade comrades also go through tortuous road. Reading this little piece of material or looking at this little orchard will prompt a turning point in our understanding. We should try hard to underground, determined to dig soil and water to go up.