Abstract
Excessive water use and soil erosion from furrow irrigation are two of the most serious management problems on irrigated silt loam soils in southern Idaho, U.S.A. These problems are especially serious on croplands planted to dry beans. In conventional bean production, fields are irrigated before planting to wet the entire soil surface. It is not unusual for farmers to apply as much as 30 cm of water over the entire field during a single preplanting irrigation. Results from this study showed that planting beans in the bottom of pre-irrigated furrows without soaking completely between the furrows reduced preplanting water application by 60%. The continuing within-row treatments reduced irrigation water use by 42% compared to conventional irrigation practices. Total bean yields on the preplanting, within-row treatments were not significantly different from the conventional treatments.
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