- Chinese Core Journal
- Chinese Science Citation Database (CSCD) Source journal
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| Citation: |
HUANG Guihua, LIANG Kunnan, ZHOU Zaizhi, MA Huaming. Density and medium effect on teak stump growth[J]. Journal of South China Agricultural University, 2015, 36(2): 74-78. DOI: 10.7671/j.issn.1001-411X.2015.02.013
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The purpose of this study was to analyze the density and medium effect on teak, Tectona grandis, stump quality and to find out the best density and medium for teak stump production.
Six types of density and four media were used by orthogonal trial in teak stump cultivation.
The result showed that ground diameter, root diameter, underground fresh mass and other indexes of seedlings without fertilization had significant or highly significant differences among treatments when 6 and 12 months old, and all treatments could produce stumps which meet the degree of taproot enlargement (DTE) criterion(DTE > 1.57). The stump quality became higher when 12 months old and V(loess):V(sand)=2:1, 150 plants·m-2, V(loess):V(sand)＝2:2, 200 plants·m-2 and V(loess):V(sand)=3:2, 150 plants·m-2 meet the afforestation standard(DTE > 1.57, 0.8 cm < ground diameter < 1.6 cm). There were significant or highly significant differences in ground diameter, root diameter and underground fresh mass among different density levels and different medium compositions. The effect on teak stump quality is density > medium. Loess mixed with sand at ratio 2:1-2:2 as medium and density 150-200 plants·m-2 are suitable for teak stump productions when cultivated in 12 months.
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