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浙南山地低产梨园改造技术浙江省文成县西北部有３４６ｈｍ２山地梨园。树龄２０—２４年，主栽品种为黄花、新世纪、杭青、菊水。由于管理粗放，平均每公顷年产量仅２４７２ｋｇ。１９９３—１９９６年，我们对其中２００ｈｍ２低产梨园进行技术改造，取得了明显成效。１...
South Zhejiang mountain low yield pear transformation technology Wencheng County, Zhejiang Province, Northwest 346hm2 mountain pear orchard. The age of 20-24 years, the main varieties of yellow flowers, the new century, Hang Qing, Ju water. Due to extensive management, the average annual output per hectare is only 2472kg. In 1993-1996, we made remarkable achievements in technological transformation of 200 hm2 low-yield pear orchards. 1 ...