Simple farming changes boost wheat yields in drought-prone areas

Agricultural researchers in Ethiopia have discovered that implementing simple farming techniques can significantly increase wheat yields in drought-prone areas. The study, co-authored by FAU Earth and Environment professor Assefa Melesse, found that modifying plowing methods and field protection can retain more rainwater and prevent soil erosion.

By adopting a combination of practices such as building soil bunds, leaving wheat residue on the ground, and using the Berken plow, wheat yields were increased by more than 27% while soil loss was reduced by 76% over three growing seasons.

The findings, published in the journal Ecosystem Services, suggest that these relatively simple changes could be valuable for small farming operations that rely heavily on rainfall. In central Ethiopia, up to 50% to 70% of rainfall is often lost before reaching crop roots, carrying away valuable soil and nutrients. The researchers tested several cost-effective methods, including soil bunds (small earthen barriers), crop residue mulch, and the Berken plow, which creates deeper furrows to improve water absorption and reduce plowing frequency.

While individual measures like soil bunds alone reduced runoff by 57% and soil loss by 73%, the effectiveness of these practices depends on factors such as labor requirements, affordability, and adoption at larger scales. The study's authors emphasize the need for further research to assess these aspects, including the upfront investment and training needed for new equipment like the Berken plow.

Nevertheless, the research demonstrates that farmers can enhance food production and environmental protection by adopting a tailored combination of practices, making farming operations more resilient to unpredictable weather patterns.