Coppice Performance and analysis of the factors influencing for Eucalyptus urophylla
The effects of Eucalyptus urophylla coppice performance differences, stump diameter and stump height on germination performance were studied. The results show that the number of sprout spot, coppice number and height followed the Low-kurtosis normal distribution, but the number of sprout spot and coppice number were deflected from its course, the coppice height negative deflectioa From mutation extent, all belong to the medium range. With stump diameter increased, the number of sprout spot and coppice number grew in number, but the lowest coppice height decreased. When the stump's height was 15 cm below, as the stump height rised, the number of sprout spot, coppice number and height slightly increased; but when the stump was over 15 cm, rising stump height, the number of sprout spot slightly decreased, the coppice number and height obvious reduced. The study also found that when the stump was buried or covered by falling litters, the coppice performance was ren-narkably inhibited by inflation. Furthermore, after contrast with four herbicides, "the wright" withdrawal of the pedants and artificial split for budding, it was found that the best treatment efficiency was 2 - 2,3-2 and 4 - 1, which is 8. 01 g/L glyphosate 95% (soluble granule+ organic silicon assistant ), 7. 5 mL/L paraquat 20%(aqua) and 8. 57 mL/L MCPA-Na.
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万方数据
维普
