NITROGEN- ENRICHMENT OF SOILS.
The value of the Ic-gumcs (of which clover is a prominent member) us manorial agents has been determined in many ways during the past 20 years, by their analysis, by noting the increase in yields in crops succeeding their growth and by the repeated analyses of soil bearing continuously clover or other legume. The plot on the Stato Farm devoted to this experiment is of a
light, sandy character, too poor at the outset to be profitably farmed. During the 10 years of the investigation, th.s soil gained, simply from the growth of clover, on an average, 501 b of nitrogen per annum, or, put otherwise, had doubled its nitrogen content. The value of these data, obtained under what must be considered as unfavourable or disadvantageous conditions, will be obvious.
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Otago Witness, Issue 3097, 23 July 1913, Page 14
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134NITROGEN-ENRICHMENT OF SOILS. Otago Witness, Issue 3097, 23 July 1913, Page 14
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