13-04-2011 дата публикации
Номер: CN0102007851A
Принадлежит:
The invention discloses a rejuvenizing method for a grafted rootstock. In the conventional method for grafting an older large rootstock, a scion is directly grafted to the stem and the bough of the rootstock, and low grafting survival rate and the poor growth of the plant are caused by the aging of the rootstock. In the invention, the older large rootstock is rejuvenized, and the rejuvenizing method comprises the following steps of: firstly, severely trimming the older large rootstock, and promoting the stem and the bough to grow a robust coppice shoot through fertilizer cultivation management; then, grafting the scion to the coppice shoot. The grafting survival rate of the invention is high, generally more than 85% and increased by 25-41% in comparison with that of the contrast plant; the grafted plant grows fast, and the tree height growth amount in the current year is increased by 30-50% in comparison with that of the contrast plant; the yield of the first fruiting year is increased ...
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