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weeding film
相关语句
  除草膜
     The yield difference of peanuts between weeding film and light-degrading film was not obvious, but the crop under weeding or light-degrading films gave more yields, compared with the crop under common film or without film.
     除草膜与光解膜产量差异不明显 ,但与普通地膜和不盖膜的差异均达极显著 ;
短句来源
  除草膜的
     Manufacture of Weeding Film and Its Application
     除草膜的研制与应用
短句来源
  相似匹配句对
     Manufacture of Weeding Film and Its Application
     除草膜的研制与应用
短句来源
     Development of Black Weeding Mulching Film
     黑色除草地膜的研制
短句来源
     the film is amorphous.
     薄膜为非晶结构。
     Symbol in the Film
     电影中的象征问题
短句来源
     On Chinese Periodical Weeding
     论中文期刊的剔旧工作
短句来源
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In this paper, the technological process of wddeing film production are Introduced. The results of the extensive field test show that weeding film Not only have notable effects of weeding,but also have the characteristics Of conventional mulching film.It can increase crop yeild,raise labour Efficiency, and also decrease production cost.

本文介绍了除草膜的生产工艺。多点大田试验表明:除草膜具有明显的除草效果,具有普通地膜的特点,它能提高农作物产量、省工、也能降低成本。

The experimental results indicated that the peanut grew under plastic film (special film) presented more branches, heavier fresh vine, more plump fruits and bigger pod than that without film, and the yield was more significant than unmulched peanut. The yield difference of peanuts between weeding film and light-degrading film was not obvious, but the crop under weeding or light-degrading films gave more yields, compared with the crop under common film or without film. The...

The experimental results indicated that the peanut grew under plastic film (special film) presented more branches, heavier fresh vine, more plump fruits and bigger pod than that without film, and the yield was more significant than unmulched peanut. The yield difference of peanuts between weeding film and light-degrading film was not obvious, but the crop under weeding or light-degrading films gave more yields, compared with the crop under common film or without film. The peanut cultivated early with film obtained higher stem, longer lateral branches than that cultivated late, and the former had advantage of the number of total branches and higher pod yield than the other treatments.

试验结果表明 ,覆膜 (专用膜 )栽培花生表现出单株分枝多、鲜蔓重、饱果数多且荚果大的优势 ,与未覆膜之间的产量差异达极显著 ;除草膜与光解膜产量差异不明显 ,但与普通地膜和不盖膜的差异均达极显著 ;覆膜早播的与其它处理的产量差异也均达极显著 ,其主茎高、侧枝长、总分枝数、单株结果数等均比迟播的具有明显优势

The weeding film as a kind of the agricultural functional film plays an important role in increasing temperature and protects the soil nutrient from losing.In the course of the process and cool of blown film,due to the temperature differences on the two sides of the film,it is possible to obtain single-side osmosis effect by controlling the crystal structure through adding some nucleating agent.The extraction of herbicide from the film with a constant and high temperature water...

The weeding film as a kind of the agricultural functional film plays an important role in increasing temperature and protects the soil nutrient from losing.In the course of the process and cool of blown film,due to the temperature differences on the two sides of the film,it is possible to obtain single-side osmosis effect by controlling the crystal structure through adding some nucleating agent.The extraction of herbicide from the film with a constant and high temperature water boiler was compared with the ultrasonic extraction,its content was tested by gas chromatography,the rigidity and crystal degree were determined by atomic force microscopy.The effects of different amounts of(nucleating) agent on the osmosis,optical and mechanical properties were tested.The results showed that the film extracted with a constant and hige temperature water boiler was easily dissolved,the(ultrasonic) improved the extraction efficiency,and acetochlor could be entirely extracted from the film in 25 min at room temperature.The osmosis amount of single-side film with 0.2 % of the organic nucleating agent increased from 51.7% to 75.4%,while the tensile strength increased from 15.14MPa to 25.73 MPa,and optical property was improved.

利用除草地膜在加工冷却过程中内外壁存在的温度差,通过加入成核剂的方法改变膜两面不同的结晶结构,达到单面渗透的效果;研究了不同成核剂及用量对单渗透膜的力学性能和光学性能的影响。采用恒温水浴锅和超声波的方法萃取膜中的乙草胺,用气相色谱测定其含量;用原子力显微镜和X衍射表征了单渗透除草膜的内外壁硬度及结晶度的变化。结果表明:除草膜中山梨醇类成核剂含量在0.2%时单面渗透量由51.7%提高到75.4%,拉伸强度由15.14MPa提高到25.73MPa,而且光学性能也得到明显提高。恒温水浴锅萃取法在温度较高时薄膜易溶解,温度较低时萃取时间长效果不好,而超声波萃取法在常温下25分钟即可全部萃取出乙草胺。

 
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