Nitrate accumulation in okra and carrot as influenced by fertilizer application

Pakistan Journal of Botany

Volumn 35, Issue 4, 2003, Pages 637-640

  John, Aslam ^a   Ibrahim, Muhammad ^a   Ishaq, Muhammad ^a  

^a AYUB AGRICULTURAL RESEARCH INSTITUTE   (Pakistan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 77958564555     PISSN: 05563321     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (11)

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2. Barker, A.V. and D.N. Maynard. 1971. Nutritional factors affecting nitrate accumulation in spinach. Commun. Soil Sci. Plant Anal., 2: 471-478.
3. Cataldo, D.A., M. Haroon, L.E. Schrades and V.L. Young. 1975. Rapid colorimetric determination of N03 in plant tissue by salicylic acid. Commun. Soil Sci.Plant Anal., 6: 71-80.
4. Deeb, B.S. and K.W. Sloan. 1975. Nitrates, nitrites and health. Bulletin No. 750 Agric. Exp. Station, College of Agric. and Veterinary Medicine, Univ. Illinois, Urbana-Champaign.
5. Hamdard, M. S., M.Y. Ahmad and H.A. Naseem. 1985. Effect of nitrogen and phosphorus fertilization on the protein and nitrate-N in vegetables. Pro. Int. Symp. Nitrogen and the Environment, Jan. 7-12, 1984, Lahore, Pakistan. Pub. Nuclear Inst, for Agri. and Biology, Faisalabad, Pakistan, pp: 309-314.
6. Ibrahim, M., N. Ahmad, A. Khan and K.M. Bhatti. 1996. Nitrate contamination of vegetables by the use of city- sewage effluent. J. Agric. Res., 34: 145-152.
7. Kimmo, I.J. 1992. Nitrogenous fertilizers and the environment. ESCAP/FAO/UNIDO, FADINAP, UN Building, Rajdamnern Avenue, Bangkok, Thailand.
8. Page, A.L., R.H. Miller, D.R. Keeney. 1982. Soil Analysis. Part 2. Chemical and Microbiological Properties. Agronomy Monograph No.9, 2nd edn., Madison,WI, USA.
9. Sarfraz, M., M.Y. Ahmad, M. Ibrahim, M.R. Ahmad and B. Ahmad. 1998. Yield and nitrate concentration of radish, carrot and tomato as affected by different levels of nitrogen application. Pak. J. Soil Sci., 15: 12-15.
10. Tecator, A.B. 1981. Determination of Kjeldahl nitrogen content with Kjeltec autosystem I, II, III and IV, Tecator Application Note AN 30/81, Tecator Inc. 2200, USA.
11. Yimin, Z., R. Shumrong and W. Zhengxiang. 1992. Effect of NPK fertilizers on the accumulation of nitrate in vegetables. Better Crops Int., Dec. Issue, pp: 28-30.