 Sustainable
Agriculture Extension Manual |
Part 5 
Soil and water conservation
Soil conservation, 84
Common types of erosion, 84
Water conservation, 85
Agronomic/vegetative conservation measures, 86
Physical soil conservation structures, 87
Controlling mosquitoes in water-retaining pits and reservoirs, 89
Water harvesting in Mooka village, Zambia, 89
Soil conservation in Machakos district, Kenya, 90
Harvesting rainwater from trees, 92
A-frame, 93
Line-level, 96
Gully reclamation in Mudenda, Zambia, 101
Enset, 105
The water-harvesting innovations of Phiri Maseko, Zimbabwe, 106
Soils, 106
The ruware, 106
Around the homestead, 108
The road, 108
The cropping area, 108
The wetland, 109
Benefits, 109
Soil and water conservation by Shalawe Mwangi, Kenya, 110
Harvesting water, 110
Reducing soil erosion, 111
Looking back, 112
The keyline water-harvesting system, 113
Principles of water harvesting, 115
NULC's keyline system, 115
Smallholder drip irrigation, 119
Bucket system, 120
Drum system, 121
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