湘西喀斯特地区不同种类基肥对青钱柳幼林生长量影响研究

Effects of different types of base fertilizers on the growth of Cyclocarya paliurus in the karst area of west Hunan Province

采用随机完全区组设计、在同一立地条件下,系统研究了不同种类基肥对三年生青钱柳幼林地径、树高和干叶重量的影响。通过施用不同种类基肥与对照相比,得出结论:青钱柳幼林地径、树高和干叶重量存在显著性差异。施用复合肥、有机肥、钾肥基肥与对照相比,青钱柳幼林地径增长率分别为82. 1%、50. 4%、49. 6%;青钱柳幼林树高增长率分别为78. 9%、63. 9%、63. 3%;青钱柳幼林干叶重量分别增加846. 47%、850. 18%、595. 23%;枯饼肥、磷肥与对照相比,地径、树高生长和干叶重量无明显影响。

The randomized complete block design was used to systematically study the effects of different base fertilizer types on the ground diameter and tree height growth、fresh and dry leaf yield of the three-year-old Cyclocarya paliurus under the same soil conditions.Compared with the control,there were significant differences in the ground diameter and tree height growth、fresh and dry leaf yield of C.paliurus.The ground diameter growth rate of the compound fertilizer,organic fertilizer,potassium fertilizer increased by 82.1%,50.4%、and 49.6%respectively;tree height growth rate increased by 78.9%、63.9%、63.3%respectively;dry leaf yield increased by 846.47%、850.18%、595.23%respectively.Cake fertilizer and phosphate fertilizer had no significant effect on ground diameter growth,tree height growth and dry leaf yield.