Effect of Controlled Release Fertilizers on Net Container Seedlings Growth of Larix kaempferi

CHU Xiu-li; SUN Xiao-mei; ZHANG Shou-gong; XU Cheng-li; WANG Li; CHENG Xu

One-year-old larch seedlings cultivated in net container were treated with different formulations of controlled release fertilizers aiming at selecting suitable formulation among those controlled release fertilizers by Fuzzy Mathematic method based on the growth, biomass and chlorophyll content of the treated seedlings. The results indicated that the growth of Larix spp. seedlings treated with different formulations fertilizer after the seeds sowed could be divided into four stages which were the germination stage(7-39 d), initial growing stage (40-54 d), fast-growing stage(55-114 d) and the late growing stage(115-135 d). It was found that different controlled release fertilizer formulations had extremely significant effects on the height, basal diameter, individual biomass, aboveground biomass, underground biomass and chlorophyll content of the seedlings, while there were no significant differences on the ratio of root to shoot of the seedlings treated with those fertilizers. The formulations 2 displayed much better effects on larch seedlings than that of the other formulations and the Apex imported from America and it could be used for larch seedlings nurturing.

1. State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China

2. Longtoushan Seedling Farm, Mulan Forest Farm Administration Bureau, Weichang 068450, Hebei China

Received Date: 2012-01-12

Available Online: 2012-12-13

Abstract: One-year-old larch seedlings cultivated in net container were treated with different formulations of controlled release fertilizers aiming at selecting suitable formulation among those controlled release fertilizers by Fuzzy Mathematic method based on the growth, biomass and chlorophyll content of the treated seedlings. The results indicated that the growth of Larix spp. seedlings treated with different formulations fertilizer after the seeds sowed could be divided into four stages which were the germination stage(7-39 d), initial growing stage (40-54 d), fast-growing stage(55-114 d) and the late growing stage(115-135 d). It was found that different controlled release fertilizer formulations had extremely significant effects on the height, basal diameter, individual biomass, aboveground biomass, underground biomass and chlorophyll content of the seedlings, while there were no significant differences on the ratio of root to shoot of the seedlings treated with those fertilizers. The formulations 2 displayed much better effects on larch seedlings than that of the other formulations and the Apex imported from America and it could be used for larch seedlings nurturing.

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Effect of Controlled Release Fertilizers on Net Container Seedlings Growth of Larix kaempferi

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通讯作者: 陈斌, bchen63@163.com

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