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[目的]探明移栽期及施氮量对津巴布韦引进品种KRK26质量风格特色的影响。[方法]以3种移栽时间和2种施氮量为变量,采用裂区试验研究了KRK26烟叶香型、甜感等风格特色和香气质、香气量、杂气、细腻度、刺激性、劲头、余味等感官质量指标的变化。[结果]试验中,随着移栽期的提前,烟叶香型呈现由"浓香"向"浓透清"转变的趋势,烟叶甜感呈现由"焦甜"向"焦带清"转变的趋势;烟叶样品的香气质变好,杂气变轻,烟气更加细腻,刺激性减小,余味更舒适,感官质量综合得分增高。试验中,N1处理的香气量得分高于N2处理,感官质量综合得分略高于N2处理;施氮量处理对烟叶香型、甜感、香气质、杂气、细腻度、浓度和刺激性的影响不明显。方差分析表明,不同移栽期处理在香气质、杂气、细腻度、刺激性、余味和感官质量综合得分上的差异都达到显著水平,在香气量、劲头和浓度上的差异不显著;N1和N2处理在香气量上的差异达到极显著水平(P=0.0070.01),在香气质、杂气、细腻度、浓度、劲头、刺激性、余味和感官质量综合得分上的差异均不显著。[结论]调节移栽期可明显改变KRK26烟叶的质量风格特色。试验中以112.5 kg/hm2处理施氮较为适宜。 相似文献
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介绍了一汽大众生产的中级豪华轿车奥迪A4轿车上应用了3种类型的CAN总线的特点极其常见故障,并提出了解决故障的方法。 相似文献
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为了保护和发扬少数民族的传统文化和特异资源,对云南地区的少数民族进行了系统的蔬菜资源调查。本文综述了云南少数民族的根菜类、叶菜类、茄果类等特异蔬菜种质资源和少数民族改良利用蔬菜资源的传统文化知识。分析表明传统文化保护了云南少数民族的特异蔬菜资源,特异蔬菜资源作为蔬菜资源的重要部分,对于云南特有少数民族的饮食文化、风俗礼仪、生产生活等具有积极作用。笔者提出应在保护云南少数民族传统文化的过程中,充分发挥特异蔬菜资源的利用价值,在利用特异蔬菜资源的过程中,保护和传播云南少数民族的传统文化。 相似文献
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The patterns of plant species diversity in herbaceous vegetation subjected to various human activities were studied in most of the landscape elements in a rural area of Chiba, central Japan. Twenty-eight transects were sampled in four types of human management-regime (cultivation, trampling, mowing, and abandonment) and were grouped into seven vegetation types using TWINSPAN and DCA analyses. The DCA axis 1 arranged all the transects into a successional order along which biomass and the degree of succession increased. Accumulated number of species increased in a stepwise pattern along the DCA axis 1, in which the dominant plant life-forms were replaced from annuals, to perennials and perennials/tree-saplings depending on different management regimes. The unique species which were confined to a certain management regime, were identified in each site. It is suggested that the coexistence of various successional communities under different human management regimes enhance regional species diversity through maintaining these unique species. Among four types of management regime, mowing sites (especially traditional verge meadows) had most abundant unique, rare species specially adapted to regular cutting. It is suggested that maintaining such traditional mown sites is important to conserve the unique biodiversity of the studied area. 相似文献
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概括了海南休闲农业发展现状,指出大力发展休闲农业的意义。基于对海南的体制优势、自然资源、人文资源的分析,将海南地形地貌风光、琼剧、热带植物、珍稀动物、黎苗风情、农产品资源应用于休闲农业之中,提出创建各类休闲农业活动的建议。 相似文献
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上海宝山区绿化系统特色探讨 总被引:1,自引:1,他引:0
通过研究宝山区的自然地理条件、社会经济因素、城市建设与绿化的相互关系,分析了绿化现状存在的问题,对宝山区的绿化特色进行了初步探索,为典型工业区及城市化快速发展地区的绿化建设提供借鉴。
相似文献
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