缓释肥对杉木容器育苗生长的影响

Effect of Slow-release Fertilizer on the Gowth of Container Seedlings of Cunninghamia lanceolata

采用随机区组试验设计,研究不同缓释肥水平对杉木苗生长指标及生物量的影响。结果表明,随着缓释肥用量的增加,杉木苗高和地径先增加后降低,生物量随着施肥量的增加呈递增趋势;根冠比、高径比则无明显的规律性。综合来看,缓释肥水平为M4(3.5 kg·m^(-3))时,最有利于杉木苗植株的生长。

The effects of different levels of controlled release fertilers on growth and biomass of Cunninghamia lanceolata seedlings were studied by means of the randomized block design. The height and diameter of Cunninghamia lanceolata container seedlings increased with the decreasing trend after fertilization increase; biomass of Cunninghamia lanceolata seedlings increased with increasing trend of fertilizers; root-shoot ratio and the ratio of height to diameter had no obvious regularity. Comprehensively, the slowrelease fertilizer was M4, which was the most beneficial to the growth of Cunninghamia lanceolata seedlings.