Local perceptions of land potential

How do local perceptions of land potential compare with soil types and textures measured with LandPKS?

That is what we set out to figure out in the rural village of Lyamgungwe, Tanzania. We asked the village government officials and elders to identify two locations within their village: one with a soil that is highly productive and does well growing maize, and one with a soil that is not very productive and where farmers have a hard time growing maize. The results were quite dramatic and the local perceptions were supported by LandPKS. The locally perceived productive soil was a Sandy Clay Loam until about 20cm depth where it turns into a Sandy Clay, and then a Silty Clay after 50cm. The locally perceived unproductive soil was a Clay for the first 20cm, then a Sandy Clay Loam, and a Loamy Sand after 50cm.

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LandPKS results showed that the first soil can hold a lot more water (X vs Y cm in the top 70cm). Future LandPKS interpretations would also indicate that the first soil also has a higher potential infiltration, so it should be able to capture more water before it runs off. This type of information can be used to decide which land to – and not to – cultivate, which can help with land use planning for both agriculture and conservation.

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The Importance of Village Agricultural Officers in LandPKS adoption in Tanzania

Village Agricultural Officers provide a critical service to smallholder farmers in rural Tanzania. They serve as the major source of agricultural information for farmers, and connect farmers to larger projects and organizations.

This week, the LandPKS team had the pleasure to spend a few days with the Agricultural Officer for Malagosi Village in Iringa Region, Tanzania. The Agricultural Officer is young, motivated, and cares about providing quality information to the farmers of Malagosi. After only a morning of training on how to use LandPKS, she was able to not only go through the LandInfo App on her own, but also helped train a few active youth in Malagosi on how to use LandPKS. She stated that she “could put the LandPKS results for each sub-village up on in village office, and if a farmer wants more information they can ask me to conduct LandPKS on their farm.”

The LandPKS team hopes that Village Agriculture Officers throughout Tanzania can play a role in increasing the adoption of LandPKS and thereby helping farmers make more sustainable agricultural choices based on their soils.

3Malagosi LandPKS