[Objective] To better understand the growth rhythm of Aquilaria sinensis seedlings and culture high - quality seedlings for market demands. [ Method] The growth rhythm of the container seedlings of semiannual AquUaria sinensis was studied, the effect of meteorological factors on seedlings growth was analyzed, and the daily growth rate of the container seedlings was detected by ordered sample cluster analysis method. [ Result ] The growth period of the container seedlings of semiannual Aquilaria sinensis could be divided into four phases: early growth period, fast growth period, slow growth period and late growth stage, and the growth of basal diameter was divided into three phases of early growth period, fast growth period and late growth period. Different seeding culture measures should be adopted according to the characteristics of different growth stages, during the early growth period, more attention should be paid to such daily care as shading, weeding, chemical spraying and disease preventing and so on, so as to promote the growth of roots; during the fast growth period, the focus should be on the fertilization of high N, low P and K, the retention of soil moisture and comprehensive weeding; the slow growth period should focus on decreasing the N fertilization proportion , improving the application proportion of P and K fertilizers, appropriately reducing the sprayed water amount, and controlling the pests and diseases; the emphasis of the late growth stage should be laid on stopping.fertilization, decreasing water spraying, shading and preventing frost disasters, so as to promote the lignification of seedlings and improve the drought and cold - resistant capacity. [ Conclusion] The study provided guidance for the scientific and rational culturing of AquUaria sinensis seedlings.
国家科技期刊平台
NSTL
万方数据
维普
