| 释义 |
Definition of contour ploughing in English: contour ploughingnoun mass nounPloughing along the contours of the land in order to minimize soil erosion. Example sentencesExamples - As noted, contour plowing of fields and contour furrows on grassland improved water retention and prevented runoff.
- Many terraces were constructed and most farmers adopted contour plowing.
- The furrows left by the plow in contour plowing act as small terraces which prevent runoff from carrying soil away.
- Jefferson was aware of the problem, and tried to mitigate it by what we would term contour ploughing on his hilly estate.
- As well as using contour grass barriers and contour ploughing, farmers have been experimenting with green manures.
- This can be eliminated to a major extent if contour ploughing and contour sowing is taken up.
- Examples might be contour plowing, where the contour needs to be re-established periodically, or delayed haying for nesting birds, which reduces forage value.
- Educators need the equivalent of the tractor, contour plowing, and hybridization.
- In contour plowing, the plowman plows perpendicular not parallel to slopes.
- Farmers can help to prevent nitrogen pollution by contour plowing.
- In this case, it should consist of contour ploughing on a narrow band of sloping land.
- A disadvantage is that contour ploughing is unsuited to heavy soils (with high clay content and low infiltration rates), in districts subject to intense rain.
- Programmes were instituted to fill dongas, build contour banks, and promote contour ploughing.
- Crop rotation, contour plowing, and the careful use of fertilizers and pest controls increased productivity, but the same techniques made it easier for bigger farms to become even more productive.
- Actual erosion and land degradation hardly occurs on rainfed arable cropping areas with grass strips and where contour ploughing is practiced.
- The second part deals with methods to improve water infiltration and storage, including contour ploughing, mulching and cover crops.
- Good gravel extraction methods are required for downstream rivers, and farmers are using contour plowing and terracing to slow the overall movement of water and soil.
|