Environinental and economic consequences of technology adoption: IPM in viticulture

The impact of integrated pest management (IPM) on pesticide use, toxicity and other environmental characteristics, yields, and farm profits is examined for grape growers. The method is generally applicable for technology adoption and accounts for self-selectivity, simultaneity, and theoretical consistency. IPM adopters apply significantly less insecticides and fungicides than nonadopters among grape producers in six states, accounting for most of the U.S. production. Both the average toxicity and the Environmental Impact Quotient decrease slightly with adoption of insect IPM, but remain about the same for adopters and nonadopters of IPM for diseases. The effect of IPM adoption on yields and variable profits is positive but only significant for the case of IPM for diseases, i.e., the adoption of IPM for diseases increases yields and profits significantly.     

吐鲁番葡萄沟社区参与旅游发展调查与分析

文章以吐鲁番市葡萄沟区为例,在实地调查数据的基础上,通过访谈和问卷两种方式,从社区居民的角度,分析了当前葡萄沟社区居民在旅游发展中的参与状况,剖析了推进和阻碍社区居民参与到旅游发展中的因素,最后提出了促进当地居民深入参与旅游发展的对策与措施。     

气相色谱-质谱法测定葡萄中扑灭津残留量

[目的]建立了气相色谱-质谱法测定葡萄中扑灭津残留量的分析方法。[方法]样品经乙腈提取,盐析,弗罗里硅土固相萃取柱净化,气相色谱-质谱测定,选择离子监测模式,外标法定量。[结果]在0.1-4mg/kg的范围内线性良好（r〉0.99）,在0.05-0.25mg/kg的添加水平范围内,平均回收率为90%-100%,相对标准偏差（RSD）为4.7%-7.4%,检出限（LOD）为0.025mg/kg,测定低限（LOQ）为0.05mg/kg。[结论]该方法简便、快速、灵敏、准确、低成本、耐用,适合葡萄中扑灭津残留量的测定。     

略论葡萄酒业的隐性营销策略

目前，我国饮酒习惯正在发生变化。但从红酒消费的主流来看，更多的还是集中在宴会、酒吧这类场所，离大众消费仍有一段距离。我国对葡萄酒文化认知以及饮酒消费习惯制约了葡萄酒产业的发展。采用隐性营销传播模式，立足于顾客心理价值的开发，塑造全新的葡萄酒文化，可促进我国葡萄酒业的快速发展。