禾草内生真菌与草坪草改良   总被引：3，自引：0，他引：3  

乔安海  王赟文 《青海草业》2004,13(1):38-40

论述禾草内生真菌具有增强禾草的抗病虫害和环境适应性方面的作用，同时提出了内生真菌在草坪草改良中需解决毒性、侵染方法、侵染率、种子保存和寄主范围等问题。  相似文献   

萌前型除草剂对草坪草的影响和杂草防除研究     

王清奎  张志国  孟艳丽 《中国草地学报》2003,25(2):38-41

通过盆栽试验研究了4种萌前型除草剂(禾草净、农思它、施田补、乙草胺)对草坪草生长的影响和杂草防除效果。试验结果表明:除草剂对草坪草生长有不同程度的影响,其中乙草胺对草坪草影响最大,产生了伤害作用,不宜在草坪中使用;各种除草剂对杂草都有不同程度的防除效果,其中农思它和禾草净效果较好,乙草胺对杂草的防除效果最差。  相似文献   

Stereoselective degradation of ethofumesate in turfgrass and soil   总被引：2，自引：0，他引：2  

Ping Wang 《Pesticide biochemistry and physiology》2005,82(3):197-204

The stereoselective degradation of ethofumesate in turfgrasses and several agricultural soils was investigated to provide details of the fate of this chiral herbicide. Racemic ethofumesate was either foliar applied to two species of turfgrass or fortified into four types of agricultural soils. (+)- and (−)-Enantiomers were extracted and analyzed by a validated chiral HPLC method which involved extraction of samples with organic solvent followed by separation on cellulose-Tris-(3,5-dimethylphenylcarbamate)-based chiral column and quantification by UV absorbance at 230 nm. Mean recoveries of each enantiomer fortified at 0.5, 5, and 10 μg g⁻¹ ranged from 82.3 ± 5.84 to 92.5 ± 2.87% in turfgrasses and from 86.0 ± 5.09 to 98.1 ± 2.51% in soil. As a measure of this composition, the enantiomeric ratio (ER) was used, defined as the concentration ratio of (+)/(−)-enantiomer. Similarly, preferential degradation of the (−)-enantiomer was observed in both grass species with the largest ER of about 3 and in one of the test soil with ER = 1.65, resulting in residues enriched with (+)-enantiomer. This stereoselective degradation in this soil led to significant difference on half-lives between the two enantiomers. No stereoselective degradation was observed in other soils.  相似文献   

Can we maintain turf to customers’ satisfaction with less water?     

Robert N. Carrow   《Agricultural Water Management》2006,80(1-3):117-131

Science-based, holistic, site-specific water conservation practices can reduce water use on turfgrass sites without adversely affecting turfgrass performance. However, when water use is decreased below a certain threshold, performance declines. Water conservation measures that reduce turfgrass performance essentially decrease its economic, environmental, recreational, and aesthetic values, which can in turn adversely impact many ‘stakeholders’, including the local economy and those affected by increased wind erosion, water erosion, or fire hazard. On larger turfgrass sites, considerable costs are associated with some water conservation strategies, especially when the quality of an alternative irrigation water source is poor or redesign of the landscape and/or irrigation system is involved.  相似文献   

类胡萝卜素与草坪草耐荫性的研究进展   总被引：1，自引：0，他引：1  

杨芳  许岳飞  李丽群  周禾 《四川草原》2011,(1):1-6

综述了近年来国内外在类胡萝卜素与草坪草耐荫性研究的进展,阐述了类胡萝卜素的分子结构及分类、生理功能、遗传基因、提取的方法和目前国内外研究草坪草耐荫的进展,探讨了将类胡萝卜素中色素的比值作为一种新的指标的可行性,并对该领域存在的问题和今后的发展趋势作了分析,以期为草坪草耐荫性研究提供参考。  相似文献   

草坪9种真菌病害诊断     

赵桂华  谢春芹  管斌 《江苏林业科技》2006,33(2):8-12

简述草坪上发生的常见真菌病害类型、发生特点,以及同类病原引起不同病害症状的区别。为了正确地鉴定各种真菌引起的病害,每一种病害都附有中、英文病原菌学名、症状描述以及典型症状图片。  相似文献   

草坪产业化   总被引：5，自引：0，他引：5  

王辉珠 《草业学报》1998,7(1):70-74

就我国草草坪产业化,提出了草坪文化、价值、产业和全面国家安全生态国防的观点,旨在转变传统观念,确立全民生态保护意识,实现产业兴国。  相似文献   

草坪草种子活力的低温保存试验   总被引：6，自引：0，他引：6  

梁应林  向清华 《四川草原》1998,(3):49-52

用－３０℃、－１０℃、５℃和室内２０～２８℃（对照）对草地早熟禾、紫羊茅、高羊茅、剪股颖四种草坪草种子保存２００ｄ后分析得出,各草坪草种子要求冷藏温度不一样,恰当的低温保存可以保持原种子活力。草地早熟禾和剪股颖种子在－３０℃～－１０℃保存为好,紫羊茅以－３０℃为佳,而高羊茅在２００ｄ内无需冷藏。  相似文献   

草坪在城市园林绿化中的作用及其发展研究   总被引：10，自引：2，他引：8  

杨春华 《四川草原》1998,(3):28-32

草坪在现代城市园林绿化中具有重要作用，如维持城市生态平衡、发展社会效益、美化环境等。本文在阐述草坪综合功能的同时，又从因地制宜地开发草坪资源，健全市场，应用新技术等方面就草坪业的发展进行了研讨。  相似文献   

Ecosystem services from turfgrass landscapes     

《Urban Forestry & Urban Greening》2017

Turf is an important component of the urban and rural landscape. The natural plant formations/biomes that it mimics are the tropical savanna, the temperate grasslands (steppe and the prairies) and the tundra. Turf in a higher or lower degree provides all the ecosystem services of the other types of vegetation. Vegetation ecosystem services that have been previously emphasized include functional, aesthetical, recreational, social, and economic services as well as services related to people psychological or physical health. The purpose of this review is to gather updated information on turf ecosystem services, mainly on how they compare to other types of vegetation, or substitutes, and to suggest some future trends/areas of research.Turf has a unique role in aesthetics and, definitely, provides an irreplaceable surface for recreational sports/activities. From the available information, turf seems to have a higher potential than other types of vegetation for reducing runoff, increasing infiltration, purifying water from sediments and pollutants, controlling erosion, improving soil quality and reducing fire hazards. For the lawn owners the main turf benefits are: first the enhanced property aesthetics, second the increment in property value and third the provision of a recreation area. Turf, as all vegetation, uses water. Without the water its benefits may be reduced or annihilated. Mimicking nature may offer some solutions for saving water: summer brown lawns that green up in the fall, although losing some of the turf benefits, may be an appropriate choice where irrigation is not feasible and are worth some research. Research, should also be done on lawns using a mix of grasses and legumes: the presence of legumes may avoid N fertilization and, possibly allows for clippings removal and usage as biofuel, while keeping the soil accumulation of carbon, preventing N leaching and turning turf’s carbon footprint even more positive.  相似文献