核桃低产林换冠改造技术
wf(2010)
Abstract
<正>采用嫁接换冠技术是核桃低产林改造的有效技术措施。选择立地条件好、林木长势良好、无病虫害的低产中幼龄林进行改造,可提高核桃的产量和品质。具体措施如下。
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