不同施肥量对滇油杉幼苗生长的影响

Effects of Different Fertilizer Application Rates on the Growth of Keteleeria evelyniana Seedlings

为探寻会东县滇油杉育苗过程中适宜的施肥量,为当地滇油杉栽植产业的发展提供技术支撑,以带土移栽的2年生滇油杉苗木为品种,巴萨克包膜控释肥为试验肥料,设置了6个不同的施肥量,比较了不同施肥量对滇油杉苗高、地径及生物量的影响。结果表明:巴萨克包膜控释肥(14-14-14)对滇油杉幼苗的生长具备一定的促进作用,在适宜范围内随着施肥量的增加,促进效果愈为明显。在巴萨克包膜控释肥(14-14-14)施入量为3 g/株时,滇油杉幼苗苗高、地径、生物量均达到了最高水平,表明在实际生产过程中可将每株3 g的施肥量作为育苗施肥标准。

In order to explore the suitable fertilizer application rate for Keteleeria evelyniana seedling cultivation in Huidong Coun-ty and provide technical support for the development of local Keteleeria evelyniana planting industry,six different fertilizer applica-tion rates were set with soil transplanting seedlings of 2 year old Keteleeria evelyniana seedlings as varieties and Basac coated con-trolled release fertilizer as experimental fertilizer.The effects of different fertilizer application rates on seedling height,ground diame-ter and biomass of Keteleeria evelyniana seedlings were compared.The results showed that controlled release fertilizer(14-14-14)had a certain promotion effect on the growth of Keteleeria evelyniana Yunnan seedlings,and the promotion effect was more and more obvious with the increase of fertilizer amount in the appropriate range.When the application rate of 14-14-14 was 3 g/plant,the seedling height,ground diameter and biomass reached the highest level,indicating that the application rate of 3 g per plant could be used as the standard for seedling fertilization in the actual production process.