Crop production: Add manure to the soil
Overall effectiveness category Unknown effectiveness (limited evidence)
Number of studies: 2
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Supporting evidence from individual studies
A replicated, randomized, controlled study in 2002–2005 in an irrigated maize field in Greece found higher maize yields in plots with added manure, compared to plots without added manure. Crop yield: Higher maize yields were found in plots with added manure, compared to plots without added manure, in two of three comparisons (11–14 vs 10–12 Mg/ha). Methods: Plots (5.6 x 8 m) had liquid cow manure (80 Mg/ha/year) or no added fertilizer (six plots each). The manure was incorporated into the soil with a disk harrow (12–15 cm depth) within two hours of application. Grain yield was measured at the end of October (two rows/plot, 12.8 m2).Study and other actions tested
A replicated, randomized, controlled study in 2001–2009 in an irrigated nectarine orchard in Italy found similar nectarine yields in plots with or without added manure. Crop yield: Similar nectarine yields were found in plots with or without added manure (33 vs 38 kg/tree). Methods: Four plots received 5–10 kg dry cow manure/ha, and four plots received no fertilizer. The manure was tilled into the soil (25 cm depth). Yield was measured in four trees/plot/year.Study and other actions tested
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This Action forms part of the Action Synopsis:Mediterranean Farmland
Mediterranean Farmland - Published 2017
Mediterranean Farmland synopsis