Luis Antonio Rojas/Panos Pictures

Guadalupe Torres Mungaray (50), the granddaughter of former wheat producers and an Accounting Assistant at the Union of Rural Production Societies of Southern Sonora (USPRUSS), flips trough a binder at the society's headquarters. The local farmer family's production capacity is not comparable to the multinational companies of the Yaqui Valley, investing and experimenting with technologies that would allow them to reduce their use of fertilisers represents a high risk for them, especially during the current drought in Arizona and Sonora region.