The study looked at how social factors like land ownership and marriage systems affect the way crops are grown in a mountainous area in Tanzania. Researchers found that most households in a village used the same cropping system for growing maize, cassava, and rice. They also discovered that villagers mainly used fields within the village, even if they lived elsewhere. Inheritances through maternal lineage and marriage patterns played a role in how fields were acquired and used. Overall, social factors like land ownership and marriage customs were important in maintaining the cropping system in the village.