Figure 1. Soil macronutrient concentrations under Maximum Farming System (MFSyst) management and Conventional (Conv) management practices. Data displayed as medians with interquartile ranges over three states, 3 sites, and 3 years (N = 96). A: Exchangeable potassium (K), available phosphorus (P), and sulfur (S). B: Magnesium (Mg) and Calcium (Ca). Bars within Mg or Ca having the same letter are not significantly different at p < 0.01

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Soil Enzyme Activities Associated with Differential Outcomes of Contrasting Approaches to Soil Fertility Management in Corn and Soybean Fields

Nicola Lorenz, Brian B. McSpadden Gardener, Nathan R. Lee, Cliff Ramsier, Richard P. Dick

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