The principles and steps of osculating value methods were introduced and the feasibleness and superiority weretestified ......

通过对雷竹新造林地进行套种黄豆、花生、地瓜的试验研究,结果表明：3种雷竹＋农作物混农模式对雷竹造林成活率的影响无显著差异,但雷......