CAJ | 학술논문

目的筛选出培育柚木Tectona grandis小棒槌苗的最佳育苗基质和育苗密度．方法采用正交试验设计研究了不同基质和育苗密度对柚木小棒槌苗生长的影响．结果和结论在不施肥情况下，6个月生和12个月生不同处理间柚木小棒槌苗的地径、根粗、地下鲜质量等指标达到显著或极显著差异，各处理小棒槌苗棒槌度均达到规格要求（棒槌度＞1．57）；12个月生小棒槌苗的品质进一步提高，V（黄心土）∶V（河沙）＝2∶1，密度150株· m－2、V（黄心土）∶V（河沙）＝2∶2，密度200株· m－2和V（黄心土）∶V（河沙）＝3∶2，密度150株· m－23个处理达到了出圃造林的要求（棒槌度＞1．57，0．8 cm＜地径＜1．6 cm）；不同育苗基质配比间和不同育苗密度水平间，地径、根粗和地下鲜质量等指标存在显著或极显著差异，对培育柚木小棒槌苗品质的影响是密度＞基质．生产12个月生柚木小棒槌苗的基质以V（黄心土）∶V（河沙）＝2∶1或2∶2，密度以150～200株· m－2为佳．
목적사선출배육유목Tectona grandis소봉퇴묘적최가육묘기질화육묘밀도．방법채용정교시험설계연구료불동기질화육묘밀도대유목소봉퇴묘생장적영향．결과화결론재불시비정황하，6개월생화12개월생불동처리간유목소봉퇴묘적지경、근조、지하선질량등지표체도현저혹겁현저차이，각처리소봉퇴묘봉퇴도균체도규격요구（봉퇴도＞1．57）；12개월생소봉퇴묘적품질진일보제고，V（황심토）∶V（하사）＝2∶1，밀도150주· m－2、V（황심토）∶V（하사）＝2∶2，밀도200주· m－2화V（황심토）∶V（하사）＝3∶2，밀도150주· m－23개처리체도료출포조림적요구（봉퇴도＞1．57，0．8 cm＜지경＜1．6 cm）；불동육묘기질배비간화불동육묘밀도수평간，지경、근조화지하선질량등지표존재현저혹겁현저차이，대배육유목소봉퇴묘품질적영향시밀도＞기질．생산12개월생유목소봉퇴묘적기질이V（황심토）∶V（하사）＝2∶1혹2∶2，밀도이150～200주· m－2위가．
Objective]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 .[Method]Six types of density and four media were used by orthogonal trial in teak stump cultivation .[Result and conclusion]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 composi -tions.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.