Effect of Fertilization Methods on the Growth of Pinus sylvestris var.mongolica Seedlings
This study aims to investigate the effects of different fertilization methods on the growth of Pinus syl-vestris var.mongolica seedlings.The effects of different ratios of compound fertilizer,urea and fertilizer applica-tion on the growth of Pinus sylvestris var.mongolica seedlings were observed.The fertilization method had a sig-nificant impact on the growth indicators of Pinus sylvestris var.mongolica seedlings,among which treatment group C showed the best growth effect,with an average seedling height,ground diameter,main root length,and lateral root number of 30.96 cm,6.98 cm,59.43 cm,and 28.61,respectively,which were increased by 47.42%,33.56%,17.59%,and 34.11%compared with the control group,followed by treatment groups B,D,G,F,and E.In terms of biomass,treatment group C also showed the highest growth effect,consistent with the research results of growth indicators.Under this fertilization method,the aboveground biomass was 39.56 g/plant.The underground biomass was 32.89 g/plant,and the whole biomass was 39.56 g/plant.The biomass of the plant was 72.45 g/plant,which in-creased by 30.16%,62.37%,and 42.91%respectively compared with the control group.Properly increasing the proportion of organic fertilizer can significantly promote the growth and development of Pinus sylvestris var.mon-golica seedlings,which provides important reference for the selection of fertilization methods during the planting process of Pinus sylvestris var.mongolica seedlings.