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为了使苹果树早结果、早丰产、早收益,我们于1979年开始进行中小型苹果乔砧密植试验研究,以拉枝和喷布生长抑制剂B9作为制矮措施,收到了较好的效果。一、试材与方法品种以嫩光为主,有部分黄太平和金红及少量黄海棠、四楞海棠。试验地面积1,440平方米,南北行向,1979年定植一年生苗木,行株距3×1米,栽植液密度222株/亩,属于高度密植。以拉枝十喷布B9作为制矮措施。定植当年顺行拉倒,枝梢朝南。以后每年春季
In order to make the apple tree early results, early high yield, early yield, we began in 1979 small and medium-sized apple anvil close planting experimental study to pull branch and spray growth inhibitor B9 as a system of short measures, received good results. First, the test materials and methods Variety to Tennen-based, part of the Huang Taiping and gold red and a small amount of Begonia, four-stalk Begonia. Test area of 1,440 square meters, north-south line, 1979 annual planting seedlings, line spacing 3 × 1 m, planting density 222 / acre, are highly dense. Bracing ten to spray B9 as a system of short measures. Colonial plantation down the same year, shoots south. After each spring