丰产植株必须具有丰产的树冠,而丰产的树冠必须从幼树开始采用修剪的方法进行培育。近年来我国南方新营造的油茶幼林,仍多放任生长,造成树冠郁密,枝梢向外围发展,树冠内部光秃空虚,结果仅在外围表面,产量不高。有的虽繁花满树,但因树势衰弱,引起严重落果而减产。为此,1972年以来我们在武义百花山林场,分别选择了树冠接近郁闭的12年生幼树,进行了矫正树型修剪试验,取得较好效果。现简介如下: 一、修剪方法1.自然圆头形:留强壮主枝4—5个,主枝在主干上各保持10—15厘米距离,各向一方发展,不要互相重叠。每个主枝只留顶部枝 High-yielding plants must have high-yielding canopies, while high-yielding canopies must be pruned from saplings. In recent years, newly-planted Camellia young forests in southern China have still been mostly laissez-faire growth, resulting in dense crown and shoots growing toward the periphery. The inside of the canopy is bare and empty, with the result only on the peripheral surface and the yield is not high. Although some bloom flowers trees, but because of the weakness of trees, causing serious fruit drop and cut. To this end, since 1972, we spent in Baiyi Mountain Forest Park, Wuyi, respectively, the canopy close to the canopy of 12-year-old saplings, the rectification tree pruning test, and achieved good results. Now briefings are as follows: First, the pruning method 1 natural round head shape: stay strong main branch 4-5, the main branch on the trunk to maintain the distance of 10-15 cm, each side to develop, do not overlap each other. Each main branch leaves only the top branch