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green manure

noun, Agriculture.
1.
a crop of growing plants, as clover and other nitrogen-fixing plants, plowed under to enrich the soil.
2.
manure that has not undergone decay.
Origin of green manure
1835-1845
First recorded in 1835-45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for green manure
Historical Examples
  • It is always sown thus when it is to be plowed under, as green manure.

  • When medium red clover is sown for being plowed under as green manure, it is always sown with a nurse crop.

  • However, it should be remembered that green manure makes a good home for the growth of scab germs.

    Agriculture for Beginners Charles William Burkett
  • It now remains to point out another important function—that of a green manure crop adding humus and plant food to the soil.

    Apple Growing M. C. Burritt
  • There are two great classes of cover or green manure crops, leguminous and non-leguminous.

    Apple Growing M. C. Burritt
  • Turnips or rape often make good pioneer cover or green manure crops.

    Apple Growing M. C. Burritt
  • Where the clovers grow well they make excellent cover crops as well as green manure crops.

    Apple Growing M. C. Burritt
  • Where it can be readily and successfully grown alfalfa is really a better cover and green manure crop than the clovers.

    Apple Growing M. C. Burritt
  • Vetch is an excellent cover and green manure crop, forming a thick, close mat of herbage which makes a good cover for the soil.

    Apple Growing M. C. Burritt
  • Cow peas are universally used as a cover and green manure crop in the South, but they do not thrive so well in the North.

    Apple Growing M. C. Burritt
British Dictionary definitions for green manure

green manure

noun
1.
a growing crop that is ploughed under to enrich the soil
2.
manure that has not yet decomposed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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green manure in Science
green manure  
A growing crop, such as clover or grass, that is plowed under the soil to improve fertility. Green manure can also reduce erosion and, if the crop is leguminous, add nitrogen to the soil.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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