Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 292 views

    Protected Cultivation and Secondary Agriculture: Agricultural Engineering

    Uploaded by

    aditya singh
    The document discusses greenhouse gas emissions and global warming. It notes that increased carbon dioxide in the atmosphere leads to higher global temperatures. This causes ice caps to melt and coastal lines to recede. The greenhouse effect traps heat similarly to how greenhouse coverings trap radiation. Different greenhouse designs are discussed based on factors like size, terrain, and span length. Structural members and construction methods vary depending on the greenhouse type and dimensions.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Protected Cultivation and Secondary Agriculture: Agricultural Engineering

    Uploaded by

    aditya singh
    292 views2 pages
    The document discusses greenhouse gas emissions and global warming. It notes that increased carbon dioxide in the atmosphere leads to higher global temperatures. This causes ice caps to melt and coastal lines to recede. The greenhouse effect traps heat similarly to how greenhouse coverings trap radiation. Different greenhouse designs are discussed based on factors like size, terrain, and span length. Structural members and construction methods vary depending on the greenhouse type and dimensions.

    Original Description:

    Original Title

    Protected cultivation-jadav-indore

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    The document discusses greenhouse gas emissions and global warming. It notes that increased carbon dioxide in the atmosphere leads to higher global temperatures. This causes ice caps to melt and coastal lines to recede. The greenhouse effect traps heat similarly to how greenhouse coverings trap radiation. Different greenhouse designs are discussed based on factors like size, terrain, and span length. Structural members and construction methods vary depending on the greenhouse type and dimensions.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    292 views2 pages

    Protected Cultivation and Secondary Agriculture: Agricultural Engineering

    Uploaded by

    aditya singh
    The document discusses greenhouse gas emissions and global warming. It notes that increased carbon dioxide in the atmosphere leads to higher global temperatures. This causes ice caps to melt and coastal lines to recede. The greenhouse effect traps heat similarly to how greenhouse coverings trap radiation. Different greenhouse designs are discussed based on factors like size, terrain, and span length. Structural members and construction methods vary depending on the greenhouse type and dimensions.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    AGRICULTURAL ENGINEERING

    Protected Cultivation and Secondary Agriculture


    FILL IN THE BLANKS

    1. The emission of ……………….. gases into the atmosphere, the percentage of carbon
    dioxide increases.
    2. Due to the increases of carbon dioxide, the atmospheric temperature …………….
    3. Due to the increases of …………………, causing global warming.
    4. Melting of ice caps, result in the ………………….. of coastal lines
    5. Increase in the ambient temperature, due to the formation of the blanket of carbon dioxide is
    known as ……………. effect.
    6. The greenhouse covering material acts in a similar way, as it is transparent to …………..
    radiation.
    7. During the ………………., the shorter wave radiation enters into the greenhouse.
    8. The reflected long wave radiation is entrapped inside the greenhouse by the …………
    material.
    9. Length is ……………. to the plane of cross section of green house.
    10. A ………………. design is used when a greenhouse is placed against the side of an existing
    building.
    11. A lean-to type is typically facing …………………. side.
    12. The lean-to type greenhouse is limited to single or double-row plant benches with a total width
    of ………………… feet.
    13. The ……………. greenhouse is the standard type have two roof slopes are of equal pitch and
    width.
    14. The ………….. design is used for the greenhouse of small size, and it is constructed on level
    ground.
    15. The cost of an even-span greenhouse is …………… than the cost of a lean-to type
    16. For single span type greenhouse the span in general, varies from …………… m.
    17. For single span type greenhouse the length is around ……………. m.
    18. For single span type greenhouse the height varies from ………….. m.
    19. Uneven span type greenhouse is constructed on …………… terrain.
    20. The roofs are of ……….. width; make the Uneven span type greenhouse structure adaptable to
    the side slopes of hill.
    21. ……………… where the pipe arches or trusses are supported by pipe purling
    running along the length of the greenhouse.
    22. …………… of the house which dictates the selection of structural members and their
    construction.
    23. For ……………… spans, simpler designs like hoops can be followed.
    24. In general, for the greenhouses with span less than ………… m, only wooden framed
    structures are used.
    25. For the purpose of classification, the ……………… of the cross section of the greenhouses
    can be considered as a factor.
    Protected Cultivation and Secondary Agriculture
    FILL IN THE BLANKS
    ANSWER KEY

    Q.No. Answer
    1. pollutants and exhaust
    2. increases.
    3. carbon dioxide,
    4. submergence
    5. greenhouse effect.
    6. shorter wave
    7. daytime,
    8. covering
    9. perpendicular
    10. lean-to type
    11. south
    12. 7 to 12 feet.
    13. even-span
    14. even-span
    15. more
    16. 5 to 9 m.
    17. 24 m.
    18. 2.5 to 4.3 m.
    19. hilly
    20. unequal
    21. Quonset
    22. Span
    23. smaller
    24. 6 m,
    25. uniqueness

    You might also like