共查询到20条相似文献，搜索用时 62 毫秒
1.
2.
启东市发展农机专业合作社的思考 总被引：1，自引：0，他引：1
农业是国民经济的重要基础。农业现代化是农业经济发展的必然要求，农业机械化是农业现代化的重要方面，没有农业机械化，就没有农业现代化。实现农业机械化，必须要有一支数量多、装备好、功能全、服务优的农机作业队伍。组建农机专业合作社，是发展壮大农机队伍、提高农机综合服务能力的必由之路。 相似文献
3.
<正>农业现代化一条清晰的主线,就是机械对人力畜力的持续替代。农业机械化和农机装备是转变农业发展方式,提高农村生产力的重要基础,是实施乡村振兴战略的重要支撑。没有农业机械化,就没有农业农村现代化。农机装备是实现农业现代化的重要物质技术基础,是农业技术集成和大规模应用的重要载体,具有人工没有的优势。农机装备水平差,适用农机拥用量少、使用率低等,是龙胜山区农业发展的短板弱项。 相似文献
4.
5.
正振兴装备制造业是我国实现新型工业化、实现国民经济可持续发展的重要基础之一。在我国实现农业现代化及可持续发展的步伐中,作为装备制造业的重要组成部分,农机制造业的先进程度直接制约农业经济的发展程度。为建设社会主义新农村,推进农业现代化,必须加快农业的现代机械化建设,要提高农机制造业的先进水平,以提高我国农业经济的国际竞争力。1.我国农业机械化现状随着我国"三农问题"的不断推进,农业机械化逐 相似文献
6.
加强农业是经济结构战略性调整的重要内容,也是保持经济发展和社会稳定的基础.大城市在我国国民经济和社会发展中起着举足轻重的作用,必须成为"领头羊",率先在当地实现农业现代化.但是,农业机械化又是实现农业现代化的重要前提和基础.因此,大中城市在都市农业现代化建设中必须要优先发展农业机械化.当前,发展农业机械化必须与时俱进,大力进行农机装备结构调整即着力促进农机装备更新,不断增加农机先进科技含量,才能切实加快农机化事业的发展,加速实现农业机械化进程. 相似文献
7.
8.
<正>《关于加快推进农业机械化和农机装备产业转型升级的指导意见》(国发[2018]42号)中指出:"农业机械化和农机装备是转变农业发展方式、提高农村生产力的重要基础,是实施乡村振兴战略的重要支撑。没有农业机械化,就没有农业农村现代化。"农业机械化不仅在解放劳动力、提高生产效率实现 相似文献
9.
农业机械是现代农业装备的基本构成,农业机械化是现代农业的重要内容。没有农业机械化,就没有农业现代化。中央1号文件指出,积极发展农业机械化,要改善农业装备结构,提升农机装备水平,走符合国情、符合各地实际的农业机械化发展道路,加快粮食生产机械化进程,因地制宜地拓展农业机械化的作业和服务领域,在重点农村季节组织开展跨区域的机耕、机播和机收作 相似文献
10.
11.
12.
13.
14.
15.
《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
16.
17.
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
18.
19.
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
20.
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