不同种植密度对茶树生长生态及产量影响的研究

THE EFFECT OF THE PLANTING DENSITY ON THE GROWING ECOLOGY AND YIELD OF TEA PLANTS

试验子1980～1988年进行,结果表明,茶树不同种植密度对树冠覆盖度、茶芽密度、叶面积指数、根系分布、芽叶组成、树冠内光照强度、经济产量的影响,均表现出规律性变化:较密的茶园,形成高产有超前的优势,较稀的茶园,幼龄期产量低,随着树龄的增长,每年产量呈匀速增加;正式采茶8～10年后,不论密植程度如何,单位面积产量即相对稳定,发展的趋势表现出一致性。

Observations and investigations were carried out continuouslyfrom 1980 to 1988, The planting density influences regularly the covering degreeof tea garden, density of buds, leaf area index, root distribution, composition ofshoots, strength of illumination in the crown and economic yield. In certain extentdenser tea garden trends to yield high earlier than less density garden which,yields low when the plants are young but increases its yield year after year.In denser tea garden, the covering area of crowns and the distribution ofroots are very wide, due to big number of tea plants in unit area, both under-ground and overground fractions can make full use of illumination and soilnutrients. Anyhow after 8~10 years plucking, no matter how dense the tea pl-ants are, the yield of unit area becoms stable relatively.