A field study using farm scale seeding and harvesting equipment was conducted to assess the effect
of stubble management on the microclimate, water use and seed yield of canola at Swift Current on
Swinton Silt Loam. The differences in wind velocity, soil temperature and solar radiation reaching soil
surface indicate significant modification of microclimate by tall stubble compared to cultivated plots. Stubble management did not influence biomass production and water use. But tall stubble significantly increased seed yield and water use efficiency over other stubble treatments. Seeding dates interacted with stubble treatments. The results suggest that, early or fall seeding may be better to exploit the potential of tall stubble. Thus tall stubble has a great potential in the heat and water stressed semiarid prairie.