Variable units 25th 50th 50th 75th 75th mean mean
farm/farmer characteristics farm/farmer characteristics
farm size ha 1.11 2.02 2.02 3.64 3.64 3.30 3.30
# of plots count 2 3 3 4 4 4 4
focal plot size ha 0.26 0.51 0.51 1.03 1.03 0.85 0.85
household size members 4 5 5 7 7 6 6
farmer age years 38 48 48 59 59 49 49
farmer education years 8 8 8 8 8 7 7
female binary - - - - - 0.13 0.13
focal plot characteristics
yield kg ha-1 1,112 2,748 2,748 4,464 4,464 2,996 2,996
used fertilizer binary - - - - - 0.32 0.32
N (for fertilizer users) kg ha-1 38 60 60 101 101 84 84
P (for fertilizer users) kg ha-1 0 10 10 55 55 38 38
K (for fertilizer users) kg ha-1 0 0 0 0 0 3 3
available carbon ppm 341 472 472 632 632 513 513
total carbon ppm 4,673 6,604 6,604 9,919 9,919 8,604 8,604
topsoil pH pH 5.6 6.1 6.1 6.5 6.5 6.1 6.1
intercropped binary - - - - - 0.54 0.54
legume rotation binary - - - - - 0.09 0.09
compost binary - - - - - 0.01 0.01
manure binary - - - - - 0.19 0.19
crop residues retained binary - - - - - 0.06 0.06
herbicide binary - - - - - 0.01 0.01
pesticide binary - - - - - 0.01 0.01
improved seed binary - - - - - 0.33 0.33
n. weedings count 1 2 2 2 2 1.57 1.57
disease binary - - - - - 0.12 0.12
striga binary - - - - - 0.03 0.03
fallowed w/in 3 years binary - - - - - 0.05 0.05
erosion control structures binary - - - - - 0.14 0.14
terraced binary - - - - - 0.04 0.04
sloped binary - - - - - 0.77 0.77
rainfall mm 322 383 383 759 759 528 528
rainfall CV CV 0.49 0.65 0.65 0.85 0.85 0.66 0.66