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22 vitu vilivyopatikana (Inaonyesha 1 - 10)

  1. Understanding Mini-Hydroelectric Generation

    01-01-1985 Electricity can be generated from the power of flowing water. This is called hydroelectric generation, and it can be done anywhere that there is water and a hill or drop for it to run down--in an irrigation canal, where a river runs through rapids or over a waterfall, or where a dam has backed up...
    Hydropower Water Power Water VITA Downloads
     

  2. Understanding Integrated Pest Management

    01-01-1989 This paper examines the complex nature of pest problems and evaluates both chemical and nonchemical controls. The objectives of IPM are assessed, together with its current accomplishments and its future as a pest-control strategy. Although the paper emphasizes agriculture, the concepts and...
    Integrated Pest Ma... Pest Management VITA Downloads Chemicals Non-Chemical IPM
     

  3. Understanding Inorganic And Organic Fertilizers

    01-01-1985 Every farmer and gardener realizes that plants receive some of their substance from the soil. Just how much plants depend on soil fertility is not always obvious, however, because so many other factors also influence plant growth--water, sunlight, pests, and plant variety (genetics). In regions...
    Organic Fertilizer Inorganic Fertilizer VITA Fertilizers Downloads
     

  4. Understanding Paper Recycling

    01-01-1986 Modern machines form paper in a continuous ribbon or web, not a single sheet at a time as did the ancients. A good papermaker in the olden days could make enough sheets in a day to weigh about 90kg. Today, an average machine makes 90,000kg per day! Much of the paper produced ultimately ends up as...
    Paper Industry Recycling Paper VITA Downloads
     

  5. Environmentally Sound Small-Scale Agricultural Projects

    01-01-1990 This manual is designed to assist those who plan and implement small-scale agricultural projects. By promoting awareness of environmental concerns, the manual can increase the development worker's ability to design projects that are both environmentally sound and potentially more sustainable....
    Agricultural Projects VITA Downloads Small Farm Develop...
     

  6. Guidelines For Planning

    01-01-1985 The purpose of this manual is to help development workers and others to become aware of the environmental factors that should be considered in planning small-scale energy projects that are environmentally sound and therefore more likely to be sustained. Environmentally sound planning includes the...
    Planning VITA Energy Planning Small Scale Developing countries Downloads
     

  7. Understanding Seed Handling For Germination

    01-01-1986 This report notes general considerations in seed harvesting, handling, and storage, and it focuses attention on methods to enhance germination for seeds started in seedbeds. The paper is intended to be especially useful for persons interested in setting up a small business that produces seed for...
    Seed Saving Seed Handling Seeds Germination Seed Germination VITA Downloads
     

  8. Understanding Glass Recycling

    01-01-1986 This paper briefly describes the production of glass and its properties, and gives some methods for recycling it. The uses of glass are not limited to these examples and there may indeed be far more inventive ways to reuse glass than are cited here. It is important to remember that any effort to...
    Glass Recycling Recycling VITA Glass Making
     

  9. Understanding Solar Energy

    01-01-1985 Developing countries are in a particularly good position to use solar energy because so many receive an abundance of sunshine. More important, the inhabitants of these countries are frequently scattered over vast areas, making access to electricity or conventional fossil fuels difficult as well...
    Solar Energy VITA Downloads Solar
     

  10. Understanding Solar Water Heaters

    01-01-1986 The easiest and most practical application of solar energy is for heating water. It has been technically feasible to heat household water using solar energy since the 1930's. Solar water heaters for homes and industry have been employed extensively in Israel, Australia, and Japan, and were quite...
    Solar Water Heater Solar heating VITA Downloads