Soil fertility not water is the main constraint in crop production in the drylands, says an article in Kenya’s Daily Nation, explaining how many farmers can utilize livestock manure and agroforestry to increase crop yields and improve soil fertility.

The article outlines how studies have shown that there is sufficient moisture in the drylands during the first season to support crop production – in particular short-duration maize – but there is not sufficient fertility to utilize this moisture.

While chemical fertilizers can greatly improve crop yields, many farmers cannot afford them. Organic fertilizers, agroforestry and crop rotation offer alternatives to improving soil condition.

Farmers in the drylands who do not have access to organic fertilizers might consider turning to the use of ‘night soil’ (faecal matter) as a source of organic fertilizer, suggests the article. This approach has proven successful in Asia.

“However, there are risks associated with night soil,” notes the article, including consumer avoidance and diseases. These risks have been reduced through greater awareness of the spread of germs in human waste and allowing night soil to ferment longer before application.

Read the full story: ‘Night soil’ can help boost soil fertility in arid areas