Some alternative functional forms for estimating economically optimal nitrogen fertilizers rates

Communications in Soil Science and Plant Analysis

Volumn 28, Issue 15-16, 1997, Pages 1429-1440

  Weliwita, Ananda ^a   Govindasamy, Ramu ^a  

^a RUTGERS UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ZEA MAYS;

EID: 0030930456     PISSN: 00103624     EISSN: None     Source Type: Journal    
DOI: 10.1080/00103629709369885     Document Type: Article

References (12)

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3. Bullock, D.S. and D.G. Bullock. 1994. Calculation of optimal nitrogen fertilizer rates. Agron. J. 86:921-923.
4. Cerrato, M.E. and A.M. Blackmer. 1990. Comparison of models for describing corn yield response to nitrogen fertilizer. Agron. J. 82:138-143.
5. Clark, R.T., J.M. Nichols, and K.M. Eskridge. 1991. Economic optimum fertilizer rate for subirrigated meadow hay production, including values for hay quality. J. Prod. Agric. 4:233-240.
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9. Klausner, S.D., W.S. Reid, and D.R. Bouldin. 1993. Relationship between late spring soil nitrate concentrations and corn yields in New York. J. Prod. Agric. 6:350-354.
10. Morris, T.F., A.M. Blackmer, and N.M. El-Hout. 1993. Optimal rates of nitrogen fertilization for first-year corn after alfalfa. J. Prod. Agric. 6:344-350.
11. SAS Institute. 1990. SAS/ETS User's Guide. Version 6. 4th ed. Statistical Analysis System Institute, Cary, NC.
12. Wolfram, S. 1992. Mathematica: A System for Doing Mathematics by Computer. 2nd ed. Addison-Wesley Publishing Company, New York, NY.