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1977年来,我们对6-10年生不结果或少结果的核桃幼树,采用插皮舌接的方法进行高接换种的试验研究.据五年的高接试验表明,核桃高接成活率高,树体恢复快,增产效果显著.核桃高接换种技术,已初步发挥出它的经济效益,并展示了改造核桃幼树低产林实现核桃栽培良种化品种化的广阔前景.一、核桃为什么要高接换种我县是发展核桃生产的一个新区,1970年来发展了大面积的核桃.目前,全县已发展核桃127万余株,已初步结果的有10万余株,而绝大部份核桃树至今仍无挂果.我县已发展起来的100多万株不结果或少结果的
1977, we 6-10 year-old fruitless or less walnut trees, the use of tongue-in-tongue method for high-replacement test study.According to a five-year high test showed that high survival rate of walnut high access , Tree fast recovery, significant effect of increased yield. Walnut high exchange technology, has shown its initial economic benefits, and demonstrated the transformation of walnut trees and low-yielding walnut seedling cultivation of broad varieties of broad prospects. To high takeover My county is the development of a new walnut production area, the development of a large area of walnut in 1970. At present, the county has developed more than 127 strains of walnut, preliminary results have more than 100,000 strains, and most Walnut tree is still no fruit. County has developed more than 1 million strains of no result or less