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- [2] EFFECTS OF SLOPING LAND DRAINAGE ON ALFALFA CROWN ROT [J]. PHYTOPATHOLOGY, 1969, 59 (03) : 386 - +
- [4] COMPARISON OF DRAINAGE BY PARALLEL DRAINS AND AN UPSLOPE DRAIN ON SLOPING LAND [J]. TRANSACTIONS OF THE ASAE, 1987, 30 (04): : 988 - 992