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  2. Contour plowing - Wikipedia

    en.wikipedia.org/wiki/Contour_plowing

    Contour plowing or contour farming is the farming practice of plowing and/or planting across a slope following its elevation contour lines. These contour line furrows create a water break, reducing the formation of rills and gullies during heavy precipitation and allowing more time for the water to settle into the soil. [ 1 ]

  3. AP United States Government and Politics - Wikipedia

    en.wikipedia.org/wiki/AP_United_States...

    Advanced Placement (AP) United States Government and Politics (often shortened to AP Gov or AP GoPo and sometimes referred to as AP American Government or simply AP Government) is a college-level course and examination offered to high school students through the College Board's Advanced Placement Program.

  4. Plough - Wikipedia

    en.wikipedia.org/wiki/Plough

    Traditional ploughing: a farmer works the land with horses and plough in the UK Water buffalo used for ploughing in Laos. A plough or plow (both pronounced / p l aʊ /) is a farm tool for loosening or turning the soil before sowing seed or planting. [1] Ploughs were traditionally drawn by oxen and horses but modern ploughs are drawn by tractors.

  5. Tillage - Wikipedia

    en.wikipedia.org/wiki/Tillage

    Tillage after corn harvest (Click for video)Tillage is the agricultural preparation of soil by mechanical agitation of various types, such as digging, stirring, and overturning.

  6. Glossary of environmental science - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_environmental...

    contour ploughing (contour farming) – the farming practice of plowing across a slope following its contours. The rows formed have the effect of slowing water run-off during rainstorms so that the soil is not washed away and allows the water to percolate into the soil.

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  8. Headland (agriculture) - Wikipedia

    en.wikipedia.org/wiki/Headland_(agriculture)

    A steam ploughing engine. In the days when steam ploughing was common, the engine would often remain on the headland and pull the plough across the field by a wire rope.There would be severe compaction of the headland but little compaction of the rest of the field.

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