REFERENCES
- Cox , F. R. 1968 . Development of a Yield Response Prediction and Manganese Soil Test or Soybeans. . Agron. J. , 60 : 521 – 524 .
- Mascagni , H. J. and Cox , F. R. 1985 . Critical Levels of Manganese in Soybean Leaves at Various Growth Stages. . Agron. J. , 77 : 373 – 375 .
- Roomizadeh , S. and Karimian , N. 1996 . Manganese–Iron Relationship in Soybean Grown in Calcareous Soils. . J. Plant Nutr. , 19 : 397 – 406 .
- Adams , M. L. , Norvell , W. A. , Philpot , W. D. and Peverly , J. H. 2000 . Spectral Detection of Micronutrient Deficiency in ‘Bragg’ Soybean. . Agron. J. , 92 : 261 – 268 .
- Adams , M. L. , Norvell , W. A. , Philpot , W. D. and Peverly , J. H. 2000 . Toward the Discrimination of Manganese, Zinc, Copper, and Iron Deficiency in ‘Bragg’ Soybean Using Spectral Detection Methods. . Agron. J. , 92 : 268 – 274 .
- Ibrikci , H. and Moraghan , J. T. 1993 . Differential Responses of Soybean and Dry Bean to Zinc Deficiency. . J. Plant Nutr. , 16 : 1791 – 1805 .
- Goos , R. J. , Johnson , B. E. and Thiollet , M. 2000 . A Comparison of the Availability of Three Zinc Sources to Maize (Zea mays L.) Under Greenhouse Conditions. Biol. . Fertil. Soils , 31 : 343 – 347 .
- Lindsay , W. L. and Norvell , W. A. 1978 . Development of a DTPA Soil Test for Zinc, Iron, Manganese, and Copper. . Soil Sci. Soc. Am. J. , 42 : 421 – 428 .
- Watanabe , F. S. and Olsen , S. R. 1965 . Test of an Ascorbic Acid Method for Determining Phosphorous in Water and NaHCO3 Extracts from Soil. . Soil Sci. Soc. Am. Proc. , 29 : 677 – 678 .
- Fehr , W. R. and Caviness , C. E. 1977 . Stages of Soybean Development Ames, IA : Iowa State University . Spec. Rep. 80.
- Murphy , J. and Riley , J. P. 1962 . A Modified Single Solution Method for Determination of Phosphate in Natural Water. . Anal. Chim. Acta , 27 : 31 – 36 .
- Olsen , S. R. and Sommers , L. E. 1982 . “ Phosphorus. ” . In Methods of Soil Analysis Edited by: Page , A. L. and Keeley , D. R. Agron. No. 9 , 403 Madison, , WI : ASA . Part 2, 2nd Ed.;
- Keeney , D. R. and Nelson , D. W. 1982 . “ Nitrogen: Inorganic Forms. ” . In Methods of Soil Analysis Edited by: Page , A. L. , Miller , R. H. and Keeney , D. R. Madison, , WI : Am. Soc. Agron. . Part 2;
- Hons , F. M. , Larson-Vollmer , L A. and Locke , M. A. 1990 . NH4-Oac-EDTA Extractable Phosphorus as a Soil Test Procedure. . Soil Sci. , 149 : 249 – 256 .
- Mascagni , H. J. and Cox , F. R. 1985 . Calibration of a Manganese Availability Index for Soybean Soil Test Data. . Soil Sci. Soc. Am. J. , 49 : 382 – 386 .
- Brown , S. , Angle , J. S. and Chaney , R. L. 1997 . Correction of Lime-Biosolid Induced Manganese Deficiency on a Long-Term Field Experiment. . J. Environ. Qual. , 26 : 1375 – 1384 .
- Gholamalizadeh Ahangar , A. , Karimian , N. , Abtahi , A. , Assad , M. T. and Eman , Y. 1995 . Growth and Manganese Uptake by Soybean in Highly Calcareous Soils as Affected by Native and Applied Manganese and Predicted by Nine Different Extractants. . Commun. Soil Sci. Plant Anal. , 26 : 1441 – 1454 .
- Parker , D. R. 1997 . Responses of Six Crop Species to Solution Zinc2+ Activities Buffered with HEDTA. . Soil Sci. Soc. Am. J. , 61 : 167 – 176 .
- Inskeep , W. P. and Bloom , P. R. 1987 . Soil Chemical Factors Associated with Soybean Chlorosis in Calciaquolls of Western Minnesota. . Agron. J. , 79 : 779 – 786 .
- Ohki , K. 1976 . Manganese Deficiency and Toxicity Level for ‘Bragg’ Soybeans. . Agron. J. , 68 : 861 – 864 .
- Mascagni , H. J. and Cox , F. R. 1985 . Effective Rates of Fertilization for Correcting Manganese Deficiency in Soybeans. . Agron. J. , 77 : 363 – 366 .