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农业建设项目绩效评价多是基于“后评价”的,对于这种一次性的建设行为的评价具有局限性.本文试图引入农业建设项目“过程绩效”及其评价的研究范式,通过建立农业建设项目过程绩效评价模型,解析农业建设项目建设实施各阶段的具体子过程,并据此展开过程绩效评价.本文同时给出了农业建设项目过程绩效评价结果的应用,为从过程绩效评价的角度来改善农业建设项目管理绩效提供一种新的思路. 相似文献
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为实现农业增效、农民增收目标，２０００年，自治区农机局给全疆各地州农机部门安排了３３．３万ｈｍ２（５００万亩）粮食、３３．３万ｈｍ２（５００万亩）棉花，６．７万ｈｍ２（１００万亩）特色农业高产机械化示范区建设项目（即“５５１”项目）任务。经两年实施，取得了较好的经济、社会效益。１“５５１”示范区项目实施槽况和取得的增产效果 两年来，全疆１１个地州共组织实施粮食高产机械化技术示范区面积为３２．５万ｈｍ２，其中小麦１９．１万ｈｍ２，平均公顷产量５８７７ｋｇ，比非示范区公顷增产４１２ｋｇ，共新增小麦７… 相似文献
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2008年，辽中县承担了辽宁省农业机械化管理局下达的玉米保护性耕作建设项目，实施期限3年。为了确保保护性耕作项目实施，根据辽宁省农机局保护性耕作有关技术规范的要求，结合辽中县农业生产实际，为了更好地做好保护性耕作项目推广工作，制定了保护性耕作项目技术的实施方案。 相似文献
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4月27日,山西省农业综合开发现代农机示范区建设项目在晋中市榆次区正式启动。省农机局王立伟局长、省财政厅张韬副厅长、省农机局张培增总工程师、省农业综合开发办赵建生主任等领导出席了启动仪式。大同、吕梁、忻州、晋中4个市农业综合开发办、农机局领导,大同、孝义、定襄、榆次4个县（市、区）农业综合开发办、农机局领导及项目承担单位负责人参加了启动仪式。 相似文献
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柑橘、茶叶是宜都市农业支柱产业。宜都市农业机械管理局根据市委、市政府布署，结合农业部下达的科技示范场建设项目，在五眼泉乡响水洞村柑橘场、松木坪镇三山农贸公司云台观茶场推广应用机械喷灌技术。根据组织安排，笔者有幸承担项目技术设计，经历了场地查勘、方案设计和安装指导。现将工程技术实施概况进行阐述如下： 相似文献
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2004年中央1号文件明确指出“提高农业机械化水平．对农民个人、农场职工、农机专业户和直接从事农业生产的农机服务组织购置和更新大型农机具给予一定补贴。”笔者就贯彻落实中央1号文件，提高农业机械化水平．发表如下意见。 相似文献
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《Journal of Agricultural Engineering Research》1998,69(3):249-254
A model to represent the discolouration of dried powder of carrots as a function of temperature was developed. Two types of carrots, Asian and European, containing large amount of lycopene and β-carotene, respectively, were tested. The dried powder was stored under an atmosphere with O2and at three different temperatures, 5,20 and 35°C. The surface colour of the powder was monitored during storage by a Hunter colour ratioa/b. In the proposed model, the rate of oxidation was assumed to be represented by the product of the fraction of concentration of oxidized pigment at arbitrary time and a specific rate of oxidation of pigment. The rate parameters in the proposed model were calculated by fitting the experimental data with smooth curves by trial and error at the end of the induction period but before discolouration took place. The frequency constant and activation energy, expressing the temperature dependence of the rate parameters, were expressed by the Arrhenius relation. The simulation results of a Hunter colour ratioa/bof dried powder at 25°C showed good agreement with the experimental data, suggesting that the proposed model was effective for the prediction of discolouration of dried powder of both types of carrot. The use of the induction period in the manner described may enable the shelf life of dried powder to be predicted. 相似文献
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感官检验棉花的品级,这是农村常见的一种检测手段.它的一个主要特点就是存在不确定性.这是由于检验员的品级检验水平存在一定的差异,其中有很多因素制约着检验的结果.文章对影响感官检验结果的因素进行了系统的分析. 相似文献
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从灾害经济学的角度探讨了城镇供水优化调度的必要性和可能性，认为在缺水不可避免的情况下，对供水进行优化调度可以减小缺水带来的损失，产生较好的减灾效益，特别是可以大大减小严重干旱的灾害效应。并根据水资源的特性，提出了缺水损失的计算模式以及优化调度的原则和方法。 相似文献
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The fractional outflow rate of water from the rumen, measured as the rate of disappearance of the chromium complex of ethylenediamine tetra-acetic acid, was related to a number of dietary factors. A multiple regression equation was derived which expressed fractional outflow rate as a function of the intakes of dry matter, ash, acid-detergent fibre and crude protein.The data analysed consisted of 243 observations for sheep on 59 diets, including forage, concentrate and mixed diets. The ranges covered by the data were: fractional outflow rate 0.7–3.6 day?1; dry matter intake 560–1400g/day; ash 4–30%, acid-detergent fibre 7–41%, crude protein 5–26 % of dry matter; there were no observations for sheep of less than 34 kg liveweight.The equation accounted for 56·3 % of the total variance. Between-sheep variance could not be calculated for the whole of the data but was undoubtedly substantial since, for a sixth of the data, it was known to account for 38 % of the total variance. 相似文献