|
58 |
Guidelines: land evaluation for extensive grazing, 1991 |
1991 |
Report |
|
|
57 |
Soil and water conservation in semi-arid areas, 1987 |
1987 |
Report |
|
|
56 |
Soil management: compost production and use in tropical and subtropical environments, 1987 |
1987 |
Report |
|
|
55 |
Guidelines: land evaluation for irrigated agriculture, 1985 |
1985 |
Report |
|
|
55 |
Guidelines: land evaluation for irrigated agriculture, 1989 |
1989 |
Report |
|
|
54 |
Tillage systems for soil and water conservation, 1984 |
1984 |
Report |
|
|
53 |
Improved production systems as an alternative to shifting cultivation, 1984 |
1984 |
Report |
|
|
52 |
Guidelines: land evaluation for rainfed agriculture, 1988 |
1988 |
Report |
|
|
51 |
El reciclaje de materias orgánicas en la agricultura de América Latina, 1983 |
1983 |
Report |
|
|
50 |
Keeping the land alive: soil erosion - its causes and cures, 1983 |
1983 |
Report |
|
|
|