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  2. Harrow (tool) - Wikipedia

    en.wikipedia.org/wiki/Harrow_(tool)

    In the southern hemisphere, so-called giant discs are a specialised kind of disc harrows that can stand in for a plough in rough country where a mouldboard plough cannot handle tree stumps and rocks, and a disc-plough is too slow (because of its limited number of discs). Giant scalloped-edged discs operate in a set, or frame, that is often ...

  3. Mouldboard plough - Wikipedia

    en.wikipedia.org/?title=Mouldboard_plough&...

    This page was last edited on 28 April 2023, at 23:18 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...

  4. Manganese nodule - Wikipedia

    en.wikipedia.org/wiki/Manganese_nodule

    Recent growth estimates suggest that "microbially mediated biogeochemical functions" [53] need over 50 years to return to their undisturbed initial state. The DISCOL [ 54 ] impact study aimed to reveal the potential long-term impacts of deep-sea mining-related disturbances on seafloor integrity by revisiting 26-year-old plough tracks.

  5. Ransome Victory Plough - Wikipedia

    en.wikipedia.org/wiki/Ransome_Victory_Plough

    Ransome Victory Plough (American spelling "plow") is a type of single-share mouldboard plough commonly used throughout Southern Africa. Introduced into much of Southern Africa in the mid-1920s via European farmers and missionaries, it was quickly adopted over earlier, heavier models that required multiple spans (teams) of oxen.

  6. Plough - Wikipedia

    en.wikipedia.org/wiki/Plough

    The chisel plough is a common tool for deep tillage (prepared land) with limited soil disruption. Its main function is to loosen and aerate the soils, while leaving crop residue on top. This plough can be used to reduce the effects of soil compaction and to help break up ploughpan and hardpan. Unlike many other ploughs, the chisel will not ...

  7. Tillage - Wikipedia

    en.wikipedia.org/wiki/Tillage

    Examples of human-powered tilling methods using hand tools include shoveling, picking, mattock work, hoeing, and raking. Examples of draft-animal-powered or mechanized work include ploughing (overturning with moldboards or chiseling with chisel shanks), rototilling , rolling with cultipackers or other rollers , harrowing , and cultivating with ...

  8. Micrograph - Wikipedia

    en.wikipedia.org/wiki/Micrograph

    A light micrograph or photomicrograph is a micrograph prepared using an optical microscope, a process referred to as photomicroscopy.At a basic level, photomicroscopy may be performed simply by connecting a camera to a microscope, thereby enabling the user to take photographs at reasonably high magnification.

  9. Petrographic microscope - Wikipedia

    en.wikipedia.org/wiki/Petrographic_microscope

    A petrographic microscope is a type of optical microscope used to identify rocks and minerals in thin sections. The microscope is used in optical mineralogy and petrography, a branch of petrology which focuses on detailed descriptions of rocks. The method includes aspects of polarized light microscopy (PLM).