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南京地区高羊茅草坪苗期阔叶杂草的化学防除方法 总被引:2,自引:0,他引:2
在高羊茅草坪的苗期阶段,杂草危害严重。如能用农作物常用除草剂防除高羊茅苗期的杂草,对高羊茅草坪的生产、养护意义重大。通过田间试验结果表明,除草剂百草敌在常规用量时对苗期高羊茅草坪安全,用药后22d阔叶杂草死亡率达90%以上。 相似文献
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1998年从中国草种公司引进冷地型高羊茅草坪草品种 15个。据近几年的试验结果表明 ,冷地型高羊茅草坪草在本地区适应性强 ,耐热性和抗病性较好 ,没有明显的休眠期 ;在 15个高羊茅品种中 ,大多数品种在本地区生长表现良好 ,草坪景观表现较好 ,只是Triplet和Olga略差。高羊茅的叶色和质量在春秋两季表现较好 ,而冬夏的叶色评分值略低 相似文献
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高羊茅属冷季型草,是长江中下游地区(草坪过渡气候带)条件下一种重要草坪。它较之其它冷季型草坪如多年生黑麦草、早熟禾等,适应性和抗性均优,在养护管理措施得当的情况下可基本做到四季常绿。高羊茅色泽深,成坪快,具良好的耐践踏能力,夏季能耐高温、干旱,抗病虫害能力较强,耐修剪。我们在上海、江苏、江西、湖南等地建坪养护均获成功,使高羊茅草坪达到了四季常绿。一、水分管理高羊茅草坪夏季水分管理尤为重要。当白天温度高于30℃,夜间温度高于20℃时,水分管理不当极易引发病害,甚至导致高羊茅草坪的成片死亡。一般要求每天早晨10时以前进… 相似文献
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高羊茅草坪草品种在长江中下游地适应性试验 总被引:6,自引:0,他引:6
1998年中国草种公司引进冷地型高羊茅草坪草品种15个。据近几年的试验结果表明,冷地型高羊茅草坪草在本地区适应性强,耐热性和抗病性较好,没有明显的休眠期;在15个高羊茅品种中,大多数品种在本地区生长表现良好,草坪景观表现较好,只是Triplet和Olga略差,高羊茅的叶色和质量在春秋两季表现较好,而冬夏的叶色评分值略低。 相似文献
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高羊茅草坪的栽植与养护朱义香一、高羊茅草简介:高羊茅草属禾本科羊茅属多年生草本植物,是冷季型草坪。该草丛生型,根系发达,植株生长快,叶片较宽,粗健有力,耐热、耐寒、四季常绿,是近年较受用户欢迎的常绿草坪。二、高羊茅草坪的种植技术(1)种植场地的平整与... 相似文献
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浅谈高羊茅草坪的管理与应用¥常州市常春花木公司@吴惠全浅谈高羊茅草坪的管理与应用常州市常春花木公司吴惠全近年来,我省各地草坪发展很快,高羊茅草种应用较为普遍。该草是从欧美引进,其植株直立、丛生,根颈处分蘖较多,因品种不同高矮有别,叶呈深绿色。本人通过几年来... 相似文献
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M. P. Clavijo P. S. Cornaglia P. E. Gundel M. Nordenstahl E. G. Jobbagy 《Agroforestry Systems》2010,80(2):275-282
Forage production in silvopastoral systems of the Flooding Pampa is based on cool season grasses with a relatively asynchronous
phenology regarding their accompanying deciduous trees. However, the productivity of cool season grasses in these systems
is usually low. The hypothesis of this work is that the low productivity of cool season grasses is caused by tree litter constraining
plant recruitment. Emergence and establishment (reproductive propagation), and tillering (vegetative propagation) patterns
of tall fescue, a cool season grass in the region, were studied in two pairs of adjacent non-afforested and afforested poplar
stands (tree age 26–28 years, tree density 453–797 plants ha−1). Observational and manipulative (i.e. addition of seeds, leaf litter removal) experiments indicated that the recruitment
of tall fescue plants is strongly limited by the fall of poplar leaves over emerged seedlings, during autumn. Results suggest
that any management practice capable of removing poplar litter, either through grazing or machinery, could neutralize this
limitation enhancing the herbaceous primary production of the system. 相似文献
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J. H. Houx III R. L. McGraw H. E. Garrett R. L. Kallenbach F. B. Fritschi Wendi Rogers 《Agroforestry Systems》2013,87(1):73-80
Silvopasture—the integration of trees, forage, and livestock can be established by planting trees in existing pastures. Successful tree establishment and acceptable tree growth in existing tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] pastures requires a vegetation-free zone near the tree base. This study was conducted to determine how large a vegetation-free zone was necessary for the establishment of black walnut (Juglans nigra L.) in tall fescue pastures. Half-sib black walnut seeds were planted in seven different-sized vegetation-free zones [0.0 (control), 0.3, 0.6, 0.9, 1.2, 1.5, and 1.8 m radii] that were created and maintained by applying glyphosate. The study included two consecutive planting years at two locations, one in central Missouri and another in north-central Missouri. The central Missouri site was underlain with well drained, deep soil while the other site was underlain with a poorly drained soil with a defined argillic horizon. Tree height growth was greatest in 0.9-m or larger vegetation-free zones. Diameter growth was greatest in 1.2-m vegetation-free zones and larger. The results suggest that a minimum of a 1.2-m vegetation-free zone in tall fescue pastures should be used to maximize black walnut height and diameter growth in the critical first years of tree establishment. 相似文献
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选择北京北五环清河两侧不同结构类型(内部构成、郁闭度)的绿地作为研究对象,利用小尺度定量测定的技术方法,分析城市河流廊道绿地不同内部构成、不同郁闭度与温湿效应的关系,为河流廊道绿带建设提供科学依据.结果显示:1)温湿影响效应大小为乔-灌-草型>乔-草型>灌-草型>草坪.当绿地内部构成为草坪时,降温增湿效应不明显;当绿地内部构成为灌-草型时,其降温增湿效应较明显;当绿地内部构成为乔-草型和乔-灌-草型时,其降温增湿效果明显.2)绿地的降温增湿效果,随着郁闭度的不断增加而逐渐增强.当绿地郁闭度为0.20~0.40时,绿地具有一定的降温增湿效应,但效应不明显;当绿地郁闭度大于0.40时,绿地降温效应明显;当绿地郁闭度超过0.60时,绿地增湿效应极其明显且趋于稳定. 相似文献
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狗枣猕猴桃嫩枝扦插试验 总被引:2,自引:0,他引:2
采用L9(34)正交设计,研究了基质类型(纯河砂、砂∶土=1∶1、砂∶土∶珍珠岩=1∶1∶1简称混)、生根调节剂类型(吲哚丁酸IBA、吲哚乙酸IAA、萘乙酸NAA)、生根调节剂浓度(200、500、1000×10-6mg/ml)对狗枣猕猴桃嫩枝扦插效果的影响。结果表明:选用纯河砂做为扦插基质,500×10-6mg/ml浓度的吲哚乙酸速蘸(10s),效果最佳,成活率95.2%,扦插苗移栽平均成活率36%;扦插基质对狗枣猕猴桃嫩枝扦插生根影响最大,生根调节剂浓度次之,生根调节剂种类的影响最小。无论是生根率、扦插苗根长,还是扦插苗移栽当年的高、径生长量均以砂基质最佳。 相似文献