Effects of Formula Fertilization on the Growth and Development of Potted Cunninghamia lanceolata Seedlings in Sand Culture
In order to explore the best fertilizer formula for the growth and development of Cunninghamia lanceolata,a sand culture pot fertilizer formula test was carried out in Shaxian County,the central production area of C.lanceolata in the country,using the seedlings cultivated by its seeds as the test materials and the"3414"N,P,K fertilizer formula technique.The results showed that there were sig-nificant differences in the growth of C.lanceolata under different fertilizer formulations.Compared with C.lanceolata without any fertil-ization treatment,the physiological indexes such as seedling height,ground diameter,branch number,aboveground biomass and subsur-face biomass of C.lanceolata after fertilization were increased.The average seedling height,ground diameter and branch number under N2P2K2 treatment increased by 19.14%,25.49%and 97.45%respectively compared with N0P0K0 treatment,and the aboveground and underground biomass increased by 36.62%and 34.90%respectively.Comprehensive analysis using principal component analysis method indicated that N2P2K2 was the best plan in formula fertilization.The suitable formula fertilization plan for C.lanceolata seed-lings selected in this study could provide reference for scientific fertilization in C.lanceolata plantation management.
Formula fertilizationCunninghamia lanceolataGrowth and development
万方数据
维普
