国产伦乱,一曲二曲欧美日韩,AV在线不卡免费在线不卡免费,搞91AV视频

我國大豆主產(chǎn)區(qū)農(nóng)業(yè)機(jī)械化現(xiàn)狀及發(fā)展策略研究

發(fā)布時(shí)間:2018-06-14 14:40

  本文選題:大豆主產(chǎn)區(qū) + 農(nóng)業(yè)機(jī)械化。 參考:《農(nóng)機(jī)化研究》2017年04期


【摘要】:大豆作為我國主要的農(nóng)作物,直接影響著我國農(nóng)業(yè)的經(jīng)濟(jì)效益,而大豆機(jī)械化程度及水平是保證大豆經(jīng)濟(jì)效益的重要物質(zhì)基礎(chǔ),研究我國大豆主產(chǎn)省區(qū)生產(chǎn)機(jī)械化現(xiàn)狀及發(fā)展對(duì)策對(duì)我國農(nóng)業(yè)經(jīng)濟(jì)發(fā)展具有重要意義。為此,依據(jù)各省區(qū)大豆總產(chǎn)量確定了我國大豆的主產(chǎn)省區(qū);進(jìn)而從綜合農(nóng)業(yè)機(jī)械化程度、單位面積農(nóng)業(yè)機(jī)械總動(dòng)力、單位面積大中型拖拉機(jī)總動(dòng)力、單位面積小型拖拉機(jī)總動(dòng)力、單位面積聯(lián)合收割機(jī)總動(dòng)力、大中型拖拉機(jī)配套比及小型拖拉機(jī)配套比7個(gè)方面分析了我國大豆主產(chǎn)區(qū)的農(nóng)業(yè)機(jī)械化現(xiàn)狀,指出了我國大豆主產(chǎn)區(qū)農(nóng)業(yè)機(jī)械化存在的問題,并提出了發(fā)展建議。
[Abstract]:Soybean, as the main crop in China, directly affects the economic benefit of agriculture in China, and the degree and level of soybean mechanization is the important material foundation to guarantee the economic benefit of soybean. It is of great significance to study the present situation and development countermeasures of production mechanization in the main soybean producing provinces in China. Therefore, according to the total soybean yield of the provinces and regions, the main provinces of soybean production in China are determined, and from the degree of comprehensive agricultural mechanization, the total power of agricultural machinery per unit area, the total power of tractors per unit area, the total power of large and medium-sized tractors per unit area, The present situation of agricultural mechanization in main soybean producing areas of China is analyzed from seven aspects: the total power of unit area small tractor, the total power of unit area combine harvester, the matching ratio of large and medium tractors and the matching ratio of small tractor. The problems of agricultural mechanization in main soybean producing areas in China were pointed out, and some suggestions for development were put forward.
【作者單位】: 東北農(nóng)業(yè)大學(xué)工程學(xué)院;黑龍江七星農(nóng)場(chǎng);
【基金】:中國工程院重大咨詢項(xiàng)目(2013-2015) 公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)(201303011)
【分類號(hào)】:S233.75;F323.3
,

本文編號(hào):2017740

資料下載
論文發(fā)表

本文鏈接:http://lk138.cn/jingjilunwen/nongyejingjilunwen/2017740.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶c18e5***提供,本站僅收錄摘要或目錄,作者需要?jiǎng)h除請(qǐng)E-mail郵箱bigeng88@qq.com
午夜久久一级二级| 99国产精品久久一区| 97热视频| 精品无码vvvvvvv专区| 草比视频网站| 一本道av在线免费观看| 欧美黑人粗大久久久| 韩国精品一区二区三区四区| 国产无码a级免费| 亚州天堂一区二区成人| 国偷自产av一区二区三区蜜| 日本加勒比无码电影| 亚洲富力午夜精品视频| 男人天堂2025| 久久在线视频区| 午夜福利一级伦理在线| 天天夜夜草国产| 九九黄色小电影| AAA黄色91视频| 91人妻中文字幕第一页| 好吊爽在线视频| 91日韩中文| 欧美日韩大陆一区二区三区| 操逼动画,红桃视频| 女生在线观看视频在线观看免费| 国产精品色69| 人人澡人人色91| 日韩在线区一| av五月天合一区二区在线观看 | 熟妇五月天在线| 亚洲日本91| 九一国产一区二区在线观看| 男生操女生屁眼视频免费看网站| 国产草草影院| 亚洲骚逼网站| 日韩欧美一区黄色| www.大香蕉com.| 妻3p一区| 久久久秘成久久| 国产精品午夜啪啪啪| 2020五码在线|