苹果梨乔砧密植早期丰产综合技术研究

Study on Apple-pear Synthetic Technique of Early High Yield with Close Plantting of Vigorous Stock

从１９９０年开始，在无灌水条件的坡地里进行苹果梨乔砧密植早期丰产综合技术研究．经６年的研究和栽培试验，在苹果梨密植研究方面取得了一定的进展．栽植第四年产量达９，０００ｋｇ／ｈａ、第五年２６，２５０ｋｇ／ｈａ、第六年３６，７５０ｋｇ／ｈａ，１、２等果率占９２．６％．

We studied early high yield synthetic technique of Apple-pear under no irrigating condition from 1990. Made some headway at close plantting during 6 years study and cultivated erperiment. Per hectare yield got to 9,000kg on the fourth year, 26,250kg next year, and 36,750kg on the sixth year, the percentage of first-class and second-class fruit is 92.6%.