Chia: The high-value crop with promising prospects

Chia seeds farm at Sagana Scheme in Nyeri County. [Kibata Kihu, Standard]

Sandy loam or loamy soils are ideal for chia cultivation. The soil should have a pH level ranging from slightly acidic to neutral (pH 6.0 to 8.0). "Soil fertility is also important, and organic matter content should be moderate to high," he says.

Choose high-quality chia seeds from a reputable source. Ensure they are suited to your climate and growing conditions.

Soil preparation

Prepare the soil by tilling it to a fine texture and removing any weeds or debris. Chia plants prefer slightly acidic to neutral soil with a pH range of 6.0 to 8.0.

Plant chia seeds directly into the prepared soil once the danger of frost has passed and the soil has warmed up. Sow the seeds thinly and evenly, about a quarter to a half inch deep, with rows spaced about 12 to 18 inches apart.

Keep the soil consistently moist but not waterlogged during the germination period, which typically lasts one to two weeks.

"Once established, chia plants are fairly drought-tolerant but will still require regular watering, especially during dry periods," says Mr Kariuki.

Weeding and Maintenance

Remove weeds regularly to prevent competition for nutrients and water. Mulching around the plants can help suppress weeds and retain soil moisture.

Fertilisation

Chia plants are not heavy feeders but you can apply a balanced fertiliser (such as a 10-10-10 formula) sparingly during the growing season to promote healthy growth.

Pest and Disease Management

Chia plants are relatively resistant to pests and diseases, but occasional infestations of insects like aphids and diseases like powdery mildew may occur. Integrated pest management (IPM) strategies, including crop rotation, companion planting, and the use of organic pesticides, can help manage pests and diseases sustainably.

"Maintaining biodiversity in and around chia fields can help promote natural pest control and soil health. Avoiding monoculture and incorporating diverse plant species can support beneficial insects, pollinators, and microbial communities," says Mr Kariuki.