In arid regions, water is a major obstacle to crop yield potential because of significant fluctuations in rainfall, prolonged dry seasons, and frequent droughts and dry spells exacerbated by climate change and variability. This led to a decline in productivity of even well-adapted crops such as sorghum (Sorghum bicolor (L) Moench) in Zimbabwe’s smallholder farming systems. Low soil fertility and inadequate management techniques worsen the decline in crop yields caused by climate change and land degradation. Practices for sustainable intensification, including rainwater harvesting, nutrient management, and the use of adapted varieties, offer a chance to boost agricultural productivity in rainfed semi-arid areas. This chapter examined infield contour-based water harvesting and the integration of biomass to enhance sorghum resilience against climate change in semi-arid areas. The findings indicated that employing contour-based tied contours and infiltration pits rainwater harvesting techniques, along with the biomass transfer of Leucaena leucocephala and/cattle manure, enhanced soil moisture levels, rainwater use efficiency, and sorghum grain yield in comparison to conventional farming methods in rainfed agricultural systems. This suggests smallholder farmers in semi-arid areas can build climate change resilience through use of contour-based infiltration pits and tied contours integrated with biomass transfer of Leucaena leucocephala and/cattle manure.