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Showing 1 to 3 of 3 for “"farmyard manure"”.
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The use of rockdust and composted materials as soil fertility amendments
… direct comparison with chemical fertilizer and farmyard manure. There were annual applications of compost, manure and chemical fertilizer in spring with one rockdust application in the autumn prior to the first year of the trial. Two harvests were carried out each year in summer and autumn to …