香榧早实丰产的栽培模式及主要技术措施

对浙江东阳市30年来香榧早实丰产栽培生产实践的调查表明:香榧可以通过多种途径实现早实丰产.当地已经形成5种模式:野生砧就地嫁接模式,野生砧异地嫁接模式,实生大苗多头嫁接模式,嫁接大苗工程造林模式和嫁接壮苗加强管理模式;提出了获得早实丰产的9项技术措施:坚持适地适树;选用早实品种;坚持壮苗浅栽;摘顶修枝整形;间种抚育管理;合理正确施肥;年年深挖促根;及时防治病虫;适时调控结实.该市现已建成约75 hm2早实丰产香榧试验园,年产榧蒲103 t,产生高达1 500多万元的经济效益.

Early-ripening and High-yielding Cultivation Patterns and Technical Measures of Chinese Torreya

According to the investigation of 30-year's practices of Chinese torreya(Torreya grandis) early-ripening and high-yielding cultivation in Dongyang,Zhejiang Province,it was showed that the early-ripening and high-yielding of Chinese torreya could be reached by various measures.Five local patterns were as follows:grafting on the wild stock at the spot;grafting on the wild stock after planting on another spot;grafting on seedlings;engineering afforestation with grafted young stocks;and enhancing the management of vigorous stocks.Nine technical measures for early-ripening and high-yielding production were put forward,i.e.matching species with the site;selecting early-ripening species;shallow planting the vigorous stocks;top removing,pruning;interplanting and tending;properly fertilizing;deep digging and promoting root growth;pest controlling;and fruiting regulating.A 75 hm~2 of early-ripening and fast-growing Chinese torreya experimental plot was established which produced 103 tonnes of seed annually and 15 million RMB yuan of economic benefits had been achieved.