Effect of Formula Fertilization on Growth Characteristics of Dendrocalamus tsiangii
Dendrocalamus tsiangii is one of timber bamboo species native to Southeast Asia.The research object was firstly taken as the Dendrocalamus tsiangii from Guizhou Province,China.An orthogonal design L10(3)4 test was then carried out to explore the effect of formula fertilization on its growth characteristics.The fertilization ratio of ni-trogen(N),phosphorus(P)and potassium(K)was finally determined to further enrich the biological characteris-tics of Dendrocalamus tsiangii.The results showed that the shooting period of Dendrocalamus tsiangii was divided into the initial,the peak and the end stage,indicating the trend of"slow-fast-slow"in the height of shoot.Further-more,the growth of shoot diameter was divided into the rising,the stable and the declining stage.The fertilization experiment showed that the K element was the significant influencing factor on the growth and development of Den-drocalamus tsiangii.The 180 g urea+30 g calcium superphosphate+345 g potassium chloride were applied to pro-mote the early emergence,the growth of diameter,and the number of shoots.The 255 g urea+90 g calcium super-phosphate+345 g potassium chloride were applied to increase the number of mature Dendrocalamus tsiangii.There-fore,the proportion of seeds and the amount of fertilizer should be adjusted in the actual forest,according to the di-ameter of bamboo clump and the cultivation target.The finding can provide a strong reference for the rational configu-ration of fertilization.
Dendrocalamus tsiangiigrowth characteristicscombined application nitrogen,phosphorus and potassi-um
万方数据
维普
