TABLE 1.
Geographical location, climate and physicochemical characteristics of the soil from the sampling areas. Geographical data for Nurseries, Tolimán and Garden are the same as they are close localities.
| Huajales |
Nurseries |
Toliman gardens |
||||||||
| NpW1 | NpW2 | NpW3 | NpC1-2 | NpC3 | EpW1 | EpW2 | EpW3 | EpC2-3 | ||
| Altitude (meters above sea level)a | 1080 | 1560 | ||||||||
| Coordinates | 21°12′36″N/99°31′6.4″W | 20°55′1.1″N/99°56’15.5″W | ||||||||
| Weather | Warm sub humid | Dry semi-warm | ||||||||
| Annual precipitation (mm)a | 952 | 406 | ||||||||
| Annual mean temperature (°C)a | 19.8 | 15.3 | ||||||||
| Soil typeb | Regosols and Pheosem | Leptosols | ||||||||
| Soil physicochemical characteristics | ||||||||||
| Density (g/cm3) | 0.9 | 1 | 0.8 | 1.6 | 1.5 | 1.6 | 1.7 | 1.4 | 1.6 | |
| Total porosity (%) | 51.1 | 52 | 56.3 | 24.2 | 25.2 | 33.3 | 34.7 | 32.4 | 39.5 | |
| Texture | Sands (%) | 95.4 | 95.3 | 95.8 | 92 | 95.4 | 90.2 | 90.3 | 90.4 | 77.8 |
| Silts (%) | 1 | 1.6 | 1.3 | 1.3 | 1.4 | 0.5 | 8.3 | 0.5 | 21.9 | |
| Clays (%) | 3.6 | 3.1 | 2.9 | 6.7 | 3.2 | 9.3 | 1.4 | 9.1 | 0.2 | |
| Textural classification | S | S | S | S | S | S | S | S | SL | |
| pH in H2O (1:2.5) | 7.35 | 7.6 | 6.64 | 7.78 | 8.16 | 8.13 | 8.05 | 8.07 | 7.29 | |
| Organic matter (%) | 6.6 | 6.48 | 6.6 | 2.91 | 2.5 | 2.5 | 2.91 | 4.22 | 1.9 | |
| Organic C (%) | 3.83 | 3.76 | 3.83 | 1.69 | 1.45 | 1.45 | 1.69 | 2.45 | 1.1 | |
| Calcium (Ca2+) | 36 | 20 | 29 | 11 | 8 | 36 | 13 | 33 | nd | |
| Exchangeable cations | Magnesium (Mg2+) | 31.5 | 19 | 14.25 | 1.5 | 50.5 | 31.5 | 64.5 | 27 | nd |
| Meq-100g soil | Sodium (Na–) | 3.26 | 2.83 | 3.26 | 3.91 | 5 | 2.39 | 2.5 | 2.39 | nd |
| Potassium (K+) | 1.54 | 1.54 | 1.15 | 2.44 | 2.95 | 0.9 | 1.22 | 1.54 | nd | |
aData from: http://smn.conagua.gob.mx; bdata from: http://inegi.org.mx/temas/edafologia; S = Sandy, SL = Sandy-Loam; nd = not determined.