Cover Image
close this bookSoil Conservation Techniques for Hillside Farms (Peace Corps, 1986, 96 p.)
close this folderConclusion
View the document(introduction...)
View the documentSuggested references
View the documentEnglish - Spanish vocabulary list
View the documentDichotomous key to the selection of soil conservation practices
View the documentResults of the Santa Cruz extension project: farm budgets and the profitability of modern agricultural techniques.
View the documentTwo simple levels for use in surveying contour lines
View the documentSome demonstrations useful in promoting new techniques

Dichotomous key to the selection of soil conservation practices

1. a. Slope less than 12% or greater than 60%


b. Slope between 12% and 60%


2. a. Slope less than 12%

Live Barriers and Agronomic

Measures* b. Slope greater than 60% ..Reforestation

3. a. Slope between 12% and 50%


b. Slope between 50% and 60%.Perennial Crops Using Discontinuous Narrow terraces

4. a. Terrain with little or no rocks


b. Terrain with abundant rocks .

Rock Wall Barriers and Agronomic Measures*

5. a. Annual crops (basic grains, vegetables tubers, flowers) or bananas


b. The majority of the fruit trees . (citrus, coffee, cacao, etc.)

Individual Terraces with Discontinuous Narrow Terraces or Hillside Ditches

6. a. Deep soil (greater than 1 meter)


b. Shallow soil (less than 50 cm)


7. a. Non-irrigated


b. Irrigated .

Continuous Bench Terraces and Agronomic Measures*

8. a. Slope between 12% and 30%, and soil. greater than 50 cm

Discontinuous Narrow Terraces depth with Agronomic Measures*

b. Slope between 12% and 50%, or soil

Hillside Ditches with Agrodepth less than 50 Agronomic Measures

* Agronomic measures refer to other land management practices, such as contour plowing and planting, mulching, etc. which may be appropriate to the area.

From: Manual Prico de Conservacie Suelos, Tracy and Perez, 1986.

Reprinted with author's permission, translated by C. Crozier.