Comment: 24:59 - 26:24 (01:25)
Source: Annenberg/CPB Resources - Earth Revealed - 15. Weathering and Soils
Keywords: "Wayne Soppeland", "Rick Aguayo", weathering, soil, irrigation, water, farming, crop, "saline residue", erosion, tilling, "crop rotation", windbreak
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Our transcription: Another concern for both Soppeland and Aguayo is irrigation management.
They recognize that the right amount of water is critical, not only for the immediate needs of the crop, but for the long-term health of the soil, as well.
Too little water would parch the fields, while too much, would result in the formation of saline residues and cause root problems.
In this case Wayne has sprinkler irrigation systems that a lot of the farmers are using either wheel lines or center pivots,.
And best we try and design them so that they provide the optimum moisture for the crop while reducing erosion and ground water contamination.
It's just that we don't want to over water.
In addition to his suggestions concerning tillage and water management, Aguayo has set up a crop rotation sequence designed to maximize the productivity of the soil.
Along with the use of windbreaks, these soil conservation techniques have already made a significant difference on Wayne Soppeland's farm.
What's especially gratifying for Soppeland is that these improvements are not just quick fixes, but significant changes that will keep his soil productive for years to come.
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Geology School Keywords
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