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Plant nutrition for food security : a guide for integrated nutrient management / R.N. Roy ... [et al.].
- 631.8 P7131
- Food and Agriculture Organization of the United Nations,
- 2006.
- Rome :
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Integrated plant nutrition systems : report of an expert consultation, Rome, Italy, 13-15 December 1993 / edited by R. Dudal, R.N. Roy.
- 631.8 E9657
- Expert Consultation on Integrated Plant Nutrition Systems (1993 : Rome, Italy)
- Food and Agriculture Organization of the United Nations,
- 1995.
- Rome :
-
Assessment of soil nutrient balance : approaches and methodologies / by R.N. Roy, R.V. Misra, J.P. Lesschen, E.M. Smaling.
- 631.422 R8881
- Roy, R. N.
- Food and Agriculture Organization of the United Nations,
- 2003.
- Rome :
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Use of phosphate rocks for sustainable agriculture / technical editing by F. Zapata, R.N. Roy ; a joint publication of the FAO Land and Water Development Division and the International Atomic Energy Agency.
- 631.85 U844
- Food and Agriculture Organization of the United Nations,
- 2004.
- Rome :
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Guide to laboratory establishment for plant nutrient analysis / by M.R. Motsara, R.N. Roy.
- 631.4 M9199
- Motsara, M.R.
- Food and Agriculture Organization of the United Nations,
- 2008.
- Rome :