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对毛竹林下套种黄花倒水莲进行试验,结果表明:影响毛竹林下套种黄花倒水莲产量的主要因子是施追肥,施用羊粪肥的黄花倒水莲整株产量最高;施用稻草肥的黄花倒水莲根部重量最高。有无施肥、施不同肥种对黄花倒水莲成活率和保存率影响较小,对黄花倒水莲病虫害影响轻微。 相似文献
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在杉阔混交林不同郁闭度林冠下进行套种药用植物黄花倒水莲对比试验,结果表明:黄花倒水莲在郁闭度0.1~0.9之间的林冠下均能生长,而以郁闭度0.1~0.3的林冠下种植的黄花倒水莲株高、地径、根、茎叶生长量最大,成活率最高;郁闭度0.3~0.5林冠下种植次之,黄花倒水莲种植在郁闭度0.7以上的林冠下虽然能成活,但是生长量最小。 相似文献
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利用毛竹林下套种黄花倒水莲,并引山沟水科学灌溉,以提高黄花倒水莲的产量、改良土壤的肥力及促进毛竹的生长。实验结果证明:通过合理种植、科学灌溉,黄花倒水莲成活率及生长量大幅度提高,净产值增加44217元/hm2。对毛竹林而言,毛竹胸径、树高略有增加,出笋量增多,土壤肥力提高。此论证可为林农大量引种栽培提供技术指导和科学理论依据。 相似文献
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毛竹林下套种黄花倒水莲技术 总被引:1,自引:0,他引:1
《河北林业科技》2013,(4)
<正>黄花倒水莲[Polygala.aureocauda Dunn]为远志科远志属植物,又名黄花参、吊吊黄、黄花用水莲、观音串、黄花大远志、黄花远志、吊黄、倒吊黄花、倒吊黄、黄花金盔、观音坠、黄花鸡骨草。分布于江西、福建、湖南、广东、广西贵州、云南等地[1]。是一种应用历史悠久的民间常用且珍贵的药物, 相似文献
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黄花倒水莲大田扦插育苗技术试验初报 总被引:1,自引:0,他引:1
黄花倒水莲是一种名贵的中药材和观赏植物,其苗木培育对发展林下经济和花卉产业具有重要的意义。育苗试验表明:黄花倒水莲产苗量可达20.3万株/hm2,育苗10个月后平均苗高可达55.3cm、地径1.16cm,为该树种的苗木培育提供技术支持,也为林下经济的发展、森林生态的保护提供苗木基础。 相似文献
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以吲哚丁酸IBA和ABT生根粉两种溶液的不同浓度处理及不同土壤基质处理分别对黄花倒水莲(Polygala fallax Hemsl.)扦插生根的影响进行试验研究。结果表明:吲哚丁酸IBA和ABT生根粉两种溶液的不同浓度处理对黄花倒水莲扦插根数、根长、稍长和生根率的影响均达到极显著水平,最佳浓度均为0.1g/L,生根率分别达到95%与90.4%,均极显著高于对照组;田园土+细河沙与黄心土+细河沙两种不同土壤基质处理对黄花倒水莲根数、根长、稍长及生根率的影响均达到极显著水平,效果最好的是黄心土+细河沙处理组,生根率达到91.6%,田园土+细河沙处理组效果次之,生根率为79.4%,均极显著高于对照组。 相似文献
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《林业研究》2021,(4)
Foliar C/N stoichiometry is an indicator of geochemical cycling in forest ecosystems,but the driving changes for its response to urbanization at the wide scale is not clear.In this study,data on tree-leaf C and N stoichiometry were collected in papers from across 105 tree species from 82 genera and 46 families.The foliar C/N of urban forest trees varied among different climate zones and tree taxonomic variation and tended to be higher in trees of urban forests near the equator and in eastern regions,mainly driven by lowered foliar N concentration.Neither the foliar C concentration nor foliar C/N for trees of urban forests was statistically higher than those of rural forests.For variation by taxonomic classification,C_4 species Amaranthus retroflexus and Chenopodium ambrosoides(Amaranthaceae) had lower foliar C/N than did other species and families.Myrsine guianensis(Primulaceae) and Myconia fallax(Asteraceae) had the highest foliar C/N.Therefore,urbanization has not caused a significant response in forest trees for foliar C/N.The change in foliar N concentration was globally the main force driving of the differences in foliar C/N for most tree species in urban forests.More work is needed on foliar C/N in trees at cities in polar regions and the Southern Hemisphere. 相似文献
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福建省毛竹害螨暴发成因与防治管理对策 总被引:7,自引:0,他引:7
通过对福州市毛竹害螨危害与毛竹产值损失关系的调查 ,推算出福建省毛竹害螨危害造成的经济损失。在全省范围内对毛竹害螨暴发成灾原因进行调查、分析的基础上 ,制定了综合防治措施 ,并针对害螨防治工作中存在的问题 ,提出防治管理对策 相似文献
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Margot Vanhellemont Kris Verheyen Jeroen Staelens Martin Hermy 《European Journal of Forest Research》2010,129(3):367-375
Prunus serotina is an invasive species that causes problems mainly in pine forests on sandy soils in Western Europe. Thus far, there have
been almost no studies considering the diameter growth of P. serotina in its introduced range. We analysed the radial growth of P. serotina in seven Scots pine (Pinus sylvestris) plantations in Flanders (Belgium) using multiple linear regression and a potential × modifier approach. The radial growth
of P. serotina in the understory of the studied pine plantations was reduced by up to 50% when compared to potential P. serotina growth in full light conditions. Size and site effects were strongly growth-reducing; crowding effects were important only
for small individuals. The actual radial growth of P. serotina below pines was determined primarily by the diameter and age of the P. serotina tree and by competition with neighbouring trees. 相似文献
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辐射松(PinusradiataD.Don)原产于加利弗尼亚海岸,被引种到世界各地,现在是南半球主要的人工林造林树种。1990年以来辐射松被引种到长江上游四川省阿坝州的干旱河谷地区,幼树的成活和早期生长表现良好。本文的主要内容包括:辐射松在原产地和引种地的生长情况,种源和遗传上的差异,环境限制因子和辐射松的气候生境,病虫害,引种不成功的经验教训以及辐射松在生态恢复中的应用。文中还简述了辐射松在阿坝干旱河谷地区的早期生长情况,列举了在长江上游干旱河谷地区引种辐射松可能遇到的问题以及所需开展的研究。图4表5参90。 相似文献