Dry bean production: effectiveness of inoculants and N fertilizer
Dry bean (Phaseolus vulgaris) production in western Canada is steadily increasing. In 1999 production reached 200 000 acres in Manitoba and 12 000 acres in Saskatchewan. These figures are projected to increase to 270 000 acres and 22 000 acres in Manitoba and Saskatchewan respectively by the year 2000. Thus, the crop is now an important component of the pulse industry in western Canada. With this expansion, producers are raising concerns and questions about nutrient management in dry bean production. Most of the concerns are centered on use of Rhizobium inoculants and N fertilizers. Considerable effort has gone into investigating the effectiveness of Rhizobium inoculants for bean production. Some of the experiments have looked at the effect of different inoculum formulations on the nodulation and nitrogen fixation. Other studies have investigated different inoculant placement methods while others have compared Rhizobium inoculants with N fertilizer. This paper reviews findings from these experiments and suggests future research topics.
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