积极发展上海农村水利机械化

一、上海农村水利机械化的发展概况 1.农田排灌机械 上海自1956年开始发展电力灌溉,到1970年上海电力灌溉控制面积已占耕地面积的90.6％,率先在全国实现了灌溉电气化。70年代以后,上海电力灌溉事业处于调整、巩固、提高阶段。进入90年代,上海农田灌溉的一项重大措施是开始大规模实施灌溉泵站综合技术改造。共需更新改造电灌站3000余座,5694台套,总投资约1.2亿元。目前已更新改造了2000余座,3622台套,占计划数的64％。

徐水县“共产主义”试点材料

“共产主义”一词，是人类向往的也是社会发展的必然趋势，是共产党人革命的最终目标。共产主义，作为社会制度，必须要经过社会主义长期过程才能逐步进入。当我国刚刚完成社会主义三大改造之后，受全国“共产风”影响，徐水县的主要领导人在胜利面前滋长了骄傲自满情绪，急于求成，竟然在１９５８年８月轻率地提出《徐水县共产主义试点》的全面规划，似乎一夜之间在全县开满了共产主义的花朵。“徐水县共产主义之花”的一现，给我们留下了极为深刻的教训。现将徐水县１９５８年提出的《徐水县共产主义试点规划》和《徐水县三化规划》的全文予以公布，以供研究借鉴，吸取应有的教训。

Impact of Mechanization on Lowland Rice Production in Nigeria

The study examined the impact of using power tiller as a means of mechanizing lowland rice production in Nigeria. The study was carried out in Bida area, Niger State, where the sawah rice production was disseminated by Watershed Initiative in Nigeria （WIN）. And in Ajase Ipo of Kwara State, some of the parameters assessed during the study included average speed of operation, average wheel slip/travel reduction, average draught of implement, and fuel consumption. The cost of operation and yield over five years of usage at Niger State and two years in Kwara State was determined and it was therefore concluded that the power tiller is the most appropriate field machinery for tillage operations such as puddling, leveling on lowland rice production in Nigeria.