Section 3 (Crop Management)

Upland maize systems in Nepal
Table 1. Bench mark soil characteristics of infertile soil in 1997 and medium fertile soil in 20001 at
Lumle Center.
Soil fertility pH Total N (%) Available P Exchangeable Organic
type
(ppm) (me 400g)
Infertile soil 4.42 0.18 5.61 0.15 2.22
Medium
fertile soil
6.00 0.37 337 0.30 3.78
Table 2. Bench mark soil characteristic at Chambas (Tanahun) and Bhakimli (Myagdi) during
2000 and at Chambas, Bhakimli and Deurali (Palpa) during 2001.
Soil Characteristics
2000 2001
Chambas Bhakimli Chambas Bhakiml
i
Deurali
1. pH 5.5 4.7 5.5 6.2 6.2
2. Total N (%) 0.04 0.09 0.13 0.15 0.13
3. Available P (Pm) 8.40 43.05 20.0 71.0 51.0
4. Exchangable K (me/100g) 0.11 0.06 88.0 481 165
5. organic Carbon 0.50 1.56 0.64 1.61 0.42
Table 3. Bench mark soil characteristics planted with maize in acid soil V-yellow and acid Vi-yellow
were genotypes.
Soil Characteristics Acid soil V-yellow Acid soil VI-yellow
1. pH 4.7 4.7
2. Total N (%) 0.04 0.07
3. Available P (ppm) 4.38 3.36
4. Exchangeable K 0.09 0.12
5. Organic Carbon (%) 0.66 0.98
- 288 -