Evaluating the potential for multicropping in SE Kazakhstan : Double-cropping corn after winter triticale and winter oilseed rape

Abstract

Double cropping is not presently a common practice in Kazakhstan. The long-term climate averages, however, suggest that the practice should be possible in the most southern portions of the country. The study described herein represents the first simultaneous evaluation of silage and grain corn crops sowing in SE Kazakhstan. Germplasm was chosen such that physiological maturity could theoretically be reached if seeded following winter triticale and winter oilseed rape. Results indicate that, considering the effect of climate change, it has been determined that even if the silage and grain yields are low, the corn grown as a second product has reached the harvest maturity and the product can be obtained. These results clearly demonstrate that with the appropriate selection of cultivar and watering possibility, there is a seeding date window where silage and grain corn can be expected to reach physiological maturity as a double crop in SE Kazakhstan.