28 research outputs found
Seasonal drought occurrence in the semiarid prairie surrounding Swift Current from 1999 to 2003
Non-Peer Reviewe
Long-term changes in wind speed and direction at Swift Current: 1955-1964 and 1996-2005
Non-Peer Reviewe
Temperature trends in the semiarid prairie of southwestern Saskatchewan
Non-Peer ReviewedPreviously, we had analyzed long-term weather data (from 1950 to 1997) to study the annual as well as seasonal change in air temperature within an approximately 15000 km2 area in the semiarid prairie near Swift Current, SK (Cutforth et al. 1999; Cutforth 2000). We found that the average annual maximum (Tmx) and minimum (Tmn) air temperatures had increased linearly with year. Seasonally, we found that the average Tmx and Tmn for January through April (JFMA) had also increased linearly from 1950 to 1997, as had the average Tmn for May through August. Average air temperatures for September through December (SOND) did not change with year. Generally, JFMA experienced the largest warming trend between 1950 and 1997, whereas temperatures during SOND did not change with year
Growing degree day trends on the semiarid prairie of southwestern Saskatchewan
Non-Peer Reviewe
Average annual and seasonal wind speed and direction at Swift Current for 1953-2005
Non-Peer Reviewe
Stubble height and fertilizer N requirements for maximizing canola yield in the semiarid Canadian prairie
Non-Peer ReviewedCanola is becoming a viable crop when grown under fallow in the semiarid prairie, but is also grown in longer rotations, most often direct seeded into standing stubble. Taller standing stubble provides the canola seedlings with a more favorable micro-climate promoting more efficient use of water and increased yields compared to canola grown without the protection of standing stubble. When grown under the more limited moisture conditions of extended rotations but in the moisture conserving characteristics of taller standing stubble, we found canola yielded best with fertilizer N rates similar to those of the moister Black soil zone. Canola yields were consistently highest when fertilized with > 100 kg N ha-1