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infiltrometer at 6-inch dikes
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infiltrometer at 6-inch dikes
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infiltrometer at 6-inch dikes
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infiltrometer at 6-inch dikes
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water ponded in 6-inch ponding dikes
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burrograss seed near 3-inch dikes
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6-inch ponding dikes, thick sewage sludge application
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burrograss seed on the ground near 3-inch dikes
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burrograss seed on the ground near 3-inch dikes