共查询到20条相似文献，搜索用时 62 毫秒
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12002年我区农业机械化持续稳定发展,为农业、农村经济发展和农民增收做出了积极贡献1.1全区农业机械装备数量、装备水平、经营效益继续保持稳定增长2002年全区农业机械总动力达到707.46万kW,增长2.43%;农机固定资产原值达到68.59亿元,增长2.08%;拖拉机拥有量达到30.98万台,增加了1.18万台,增长4%;去年棉花面积调减了19.8万hm2,棉花是用工量最大的作物之一,在这种情况下,全区的农机化作业水平,经营效益仍保持稳定并略有增长,预计2002年机耕90%,与去年持平,机播、机收分别81%、28%,较上年增长1%;农机化经营总收入达到46.53亿元,较上年增加0.… 相似文献
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完善农机购置补贴政策推动农机化又好又快发展 总被引：1，自引：0，他引：1
农业机械购置补贴实施4年多来,中央财政资金投入由2004年的7000万元增加到2009年的130亿元,极大地调动了农民购机、用机的积极性,取得了非常好的效果.全国农机装备水平和农业机械化作业水平显著提高,装备结构有所改善,农机总动力大幅增长.促进了农业生产规模的扩大、农机经营收入和农机户收入的增加,以及农机工业发展和装备技术创新,为粮食生产和农产品有效供给提供了技术保障. 相似文献
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农业机械化是农业现代化的重要标志,是转变发展方式、建设现代农业、促进农民增收的重要手段。2003年实施省人大农机化发展议案,特别是2006年实施"十一五"规划以来,惠州市将农机化工作列为"十一五"农业规划的重要内容,采取"四个强化"的有力措施,全面推进农业机械化,全市农机装备结构不断优化,综合水平不断提升。2009年,农机总动力116.67万千瓦,比2002年增长29.5%;农业机械原值8.17亿元,增长44.1%;综合机械化水平61.4%,提高了36.5个百分点。 相似文献
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随着我国农机购置补贴力度的加大,农机装备的总量不断增长,农业机械在促进农业增效、农民增收的同时,其作业事故随之增加,安全隐患日益突出.为此农业部和国家安全监管总局决定,从2009年～2011年,在全国继续开展创建"平安农机"活动. 相似文献
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<正>近年来,随着国家农机购置补贴政策的实施,农业机械装备总量大幅度增长,截止2009年,全疆拖拉机数量已达51.8万台,配套农具近90万台套。但与农业机械相配套的"吃、住、行、医"(油料供应,机 相似文献
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<正>1农机化发展状况1.1农业机械总量和装备水平不断提高(1)农机总动力增长显著。到2007年末,阿勒泰地区农机总动力达到41.1万kW,比1978年增长8.32倍。(2)农业机械及配套机具大幅度增加。2007年 相似文献
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改革开放以来,河南农业机械化得到了较为迅速的发展,农业机械化对农业生产的辅助效果越来越好,提高了河南农业的综合生产能力,促进了农业的平稳较快发展。本文利用河南农业发展相关时间序列数据,运用误差修正模型对河南省农业增加值的增长和农业机械的增长进行了经验测度。结论表明:长期内河南农业机械的总量增长对农业增加值的增长有积极的影响,农业机械总量每增长1%,农业增加值增长1.43%;短期内,上期农业机械总量每增加1%,本期农业增加值增长1.23%。 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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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
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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