Table 1.
Pa (mg kg−1) | % N | pH | % Organic matter | % Sand | % Silt | % Clay | Soil texture | ||
---|---|---|---|---|---|---|---|---|---|
H2O | KCl | ||||||||
Oasis | 71 | 0.18 | 8.4 | 7.9 | 3.7 | 67.2 | 24.8 | 8.1 | Sandy loam |
Exp. station | 93 | 0.1 | 8.5 | 7.9 | 2.6 | 60.5 | 33.6 | 5.9 | Sandy loam |
Undisturbed habitat | 41.4 | <0.1 | 8.2 | 8.1 | 1.5 | 70.7 | 25.4 | 4.3 | Sandy loam |
Sand dunes | 22.6 | <0.1 | 9.1 | 8.5 | 0.45 | 90.7 | 9.3 | 0 | Sand |
aSodium bicarbonate-soluble P, analyzed using the method given by Chapman and Pratt (1961)