Tables index

From

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

Applied Ecology and Environmental Sciences. 2020, 8(6), 517-525 doi:10.12691/aees-8-6-26
  • Table 1. Key differences in the Maximum Farming Systems-based and Conventional approaches to crop nutrient management
  • Table 2. Texture of soils sampled from test sites in Iowa (IA), Illinois (IL), and Ohio (OH). Data on soil series, soil texture (% sand, % silt, % clay), and soil cation exchange capacity (CEC) in 0 - 15 cm soil depth are shown for adjacent fields differing in management. Values in bold are significantly higher when comparing Maximum Farming System (MFSyst) and Conventional (Conv) management at the same site (N = 32, p < 0.01)
  • Table 3. Median soil pH, soluble salts (SS), NO3- test values and micronutrient (Fe, Mn, Cu, B, and Zn) concentrations on fields of contrasting approaches to fertility management in 0 - 15 cm soil depth (N = 32 per year). Significant differences between MFSyst and Conv over three years are given as Overall p
  • Table 4. Correlation coefficients (r-values) of soil β-glucosidase (GLU) and arylsulfatase (ARYL) activities [µmol PNP g-1h-1], soil organic matter (SOM [%]) with corn and soybean yields [kg ha-1] (Corn yield N= 102, Soybean yield N = 79)
  • Table 5. Nitrogen input, corn yield, and nitrogen use efficiency (NUE) at fields under Maximum Farming System (MFSyst) and conventional (Conv) management (N = 15 for MFSyst, N = 12 for Conv)