 | Soil moisture. | (2) |
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 | Effect of physical soil properties on cotton emergence : prediction and quantitative description / . Wanjura, D. F. (Donald F.) 4n Washington : U.S. Dept. of Agriculture, 1973. | |
| Water intake on midcontinental rangelands as influenced by soil and plant cover / . Rauzi, Frank. 4n Washington : U.S. Dept. of Agriculture, 1968. | |
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