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Table 2 Characterization of agroecologies

From: Farmer knowledge identifies a competitive bean ideotype for maize–bean intercrop systems in Rwanda

Agroecologies Elevation Soil type Clay Sand Total N Organic C Bray-P Soil pH
Unit m.a.s.l. Texture % % % % ppm  
Low 1671 Sandy loam—silt loam 9 (0.7) 50 (18) 0.2 (0.1) 2.2 (1) 94 (32) 6.4 (0.2)
Mid 1805 Sandy clay loam—clay loam 31 (5) 39 (11) 0.1 (.03) 0.93 (0.4) 6 (5) 5.2 (0.2)
High 2059 Silt loam—loam 16 (8) 34 (5) 0.3 (0.3) 2.93 (3) 10 (6) 6.2 (0.5)
  1. Soils were collected from the 15-cm topsoil depth each season in 2011 and 2012 in Northern Province, Rwanda. Data presented are averaged (std error) across trials sites for each agroecology