1979年开始,我们在过去小面积苹果矮化栽培的基础上,扩大发展到28400亩,其中矮化中间砧8400亩,元帅系、烟青、绿光等短枝型20000亩。具体情况如下: 1979年春,在汪疃镇天奋村建矮化中间砧苹果园10亩,株行距2×3米,亩栽111株。品种为‘红尼卡”(郑州果树所引种),基砧淄博海棠,中 Starting from 1979, on the basis of the dwarfing cultivation of small-area apple in the past, we expanded the development to 28,400 mu, of which, there are 8,200 mu of dwarfing intermediate stock, 20,000,000 mu of short branch type such as Marshal Series, Smoke Green and Green Light. The specific conditions are as follows: In the spring of 1979, 10 mu of apple orchard with dwarfing intermediate stumps was built in the village of Wangpi, with a spacing of 2 × 3m and 111 trees per mu. Varieties for the ’red card’ (Zhengzhou introduction of fruit trees), root anvil Zibo Begonia, in