共 2 条
- [1] EFFECT OF PHOSPHORUS PRECIPITATION CHEMICALS ON CHARACTERISTICS AND AGRICULTURAL VALUE OF MUNICIPAL SEWAGE SLUDGES .1. CHARACTERISTICS OF CA, AL AND FE PRECIPITATED SEWAGE SLUDGES ACTA AGRICULTURAE SCANDINAVICA, 1990, 40 (02): : 123 - 129
- [2] EFFECT OF PHOSPHORUS PRECIPITATION CHEMICALS ON CHARACTERISTICS AND AGRICULTURAL VALUE OF MUNICIPAL SEWAGE SLUDGES .3. ANALYTICAL RESULTS OF SLUDGE TREATED SOILS ACTA AGRICULTURAE SCANDINAVICA, 1990, 40 (02): : 141 - 147