稀土提高杉木、木荷、板栗苗木质量及矿质元素积累的研究

Studies on Raising Seedling Quality and the Accumulation of Mineral Element of Chinese Fir,Chinese Gugertree and Chinese Chestnut Through Rare Earth Element

摘要: 杉木(Cunninghamia lanceolata (Lamb.) Hook)、木荷(Schima superba Gardn.et Ghamp.)和板栗Castanea mollissima Blume是我国南方重要速生树种,每年需大量苗木供应。近年因育苗管理粗放,圃地肥力下降,苗木质量降低,影响到以杉木为主的速生丰产林的成活和初期生长1,2。我们从1986-1989年在福建省南平市峡阳苗圃和永安市苗圃等进行稀土促进杉木、木荷、板栗等一年生苗生长的田间试验。研究了喷施稀土促苗生长,提高苗木质量的作用3,并研究稀土对杉木苗矿质元素积累的影响。

Abstract: This paper presents the effect of the application of rare earth to the seedlings on growth and raising the seedling quality of Chinese Fir,Chinese Gugertree,Chinese Chestnut.The differences of accumulation of N,P,K elements of Chinese Fir seedlings growing in two nuseries with different fertility levels were compared.Rare earth is a kind of regulation for seedling growth.