香椿材用林丰产栽培试验初报

本文开展了香椿材用林不同品种、密度与施肥量的栽培试验。研究结果表明:香椿造林第二年以九江种源地径增长最快,年均达2.016 cm;而树高增长以中密度2 m×2 m最大,年均增长0.606 m;复合肥株施0.75 kg对香椿后期地径、树高与冠幅增长效果最佳。提出江西省香椿材用林培育采用九江种源、初植密度2 m×1.5 m与株施0.75 kg复合肥有利于幼林生长。研究结果可为江西省香椿材用林培育提供科学依据。

Preliminary Report of High-yield Cultivation Experiment of Toona sinensis Timber Forests

In this paper,the cultivation experiment of Toona sinensis timber forests was conducted on the different varieties,density and fertilizer.The results showed that the ground diameter of T.sinensis from Jiujiang provenance growing fastest in afforestation at second year,annual average of 2.016 cm;but the tree high growth as medium density of 2 m×2 m was the largest,with an average annual growth rate of 0.606 m;The increment of ground diameter,tree height and crown diameter was the largest under each applied with 0.75 kg compound fertilizer.It would be in avail for young forest growth under adopting Jiujiang provenance,plant density at the beginning of the 2 m×1.5 m and 0.75 kg compound fertilizer each applied.The study result can provide scientific basis for cultivation of T.sinensis timber forests in Jiangxi Province.