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近年来,有些果园管理粗放,至使一些刚进入盛果期的幼树长势显著衰弱,果农称这些未老先衰的苹果树为“小老树”,如何使这些小老树返老还童,达到高产质佳的目的呢?
In recent years, some orchards have been extensively managed so that the number of saplings that have just entered the full fruit period has significantly weakened. The fruit growers call the “old trees” the apple trees without premature aging and how to make these small trees rejuvenate and reach high yields Good purpose?