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在日本苹果价格很高,特别是优质新品种销售价可比一般品种高2—3倍,所以迅速更新品种是增加果农收入的主要手段,而高接更新又是投资少、见效快的有效方法。(一)高接更新的种类1.一次更新:将一株盛果期的大树,一次高接60—150个枝条。把所有能嫁接的部位全部高接新品种,第二年即可少量开花结果,第三年可收益。由于此种方法几乎有两
In Japan, the prices of apples are very high. In particular, the sales price of new high-quality varieties is 2-3 times higher than that of general varieties. Therefore, the rapid updating of varieties is the main means of increasing the incomes of farmers and the upgrading of new varieties is an effective way to reduce investment and quick returns. (A) the type of high access update 1. An update: a tree will be full of fruit, a high take 60-150 branches. Put all the high-grade new varieties that can be grafted in the second year to a small number of flowering results, the third year can be rewarded. Because of this method is almost two