Green manuring is the practice of ploughing down a green crop or its aftermath. Its main object is to add organic matter to the soil, and, secondly, when the crop ploughed down is a legume, to increase the nitrogen. The addition of organic matter which ultimately becomes bumus improves the water-holding capacity of the soil and tends to bring about a better condition of tilth. A third main object in ploughing down a green crop is to add to the soil food for its bacterial life which plays such an important part in the preparation of plant food, e.g., nitrification.
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https://paperspast.natlib.govt.nz/newspapers/SUNAK19281013.2.192
Bibliographic details
Sun (Auckland), Volume II, Issue 484, 13 October 1928, Page 28
Word Count
100Untitled Sun (Auckland), Volume II, Issue 484, 13 October 1928, Page 28
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