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Effect of Nitrogen, Sodium, and Potassium on Nitrate and Oxalate Concentration in Kikuyugrass

Published online by Cambridge University Press:  12 June 2017

M. Coburn Williams ,
Burton J. Smith  and
Lopez V. Rafael
M. Coburn Williams
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Poisonous Plant Res. Lab., 1150 E. 1400 N., Logan, UT 84321
Burton J. Smith
Affiliation:
Livestock and Pasture Management, Univ. of Hawaii, P.O. Box 237, Kamuela, HI
Lopez V. Rafael
Affiliation:
Haras Cerro Punta, S.A., P.O. Box 1795, Panama 1, Republic of Panama
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Abstract

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Kikuyugrass was analyzed for nitrate (expressed as KNO3) and soluble oxalate concentration after it was grown for 8 wk in nutrient solution supplemented with KCl, NaCl, or NH4NO3; fertilized in the greenhouse with urea and KNO3 at 112 kg N ha-1; and fertilized in the field in Hawaii and Panama with urea at 56 and 112 kg N ha-1. Both treated and untreated kikuyugrass grown in nutrient solution contained toxic levels of nitrates and soluble oxalates. Plants treated with urea in the greenhouse contained 0.4% nitrate (nontoxic) 72 h after treatment whereas those treated with KNO3 contained 2.36% nitrate (highly toxic). Fertilization of kikuyugrass with urea in Panama and Hawaii did not significantly affect soluble oxalate concentration, but nitrate concentration increased to potentially lethal levels (over 1.5% as KNO3, dry wt) in plants from Hawaii.

Keywords

Kikuyugrass, Pennisetum clandestinum Hochst. ex Chiov. ♯ PESCLFertilizerKClKNO3NaClpoisonous planturea
Type
Research
Information
Weed Technology , Volume 5 , Issue 3 , September 1991 , pp. 553 - 556
Copyright
Copyright © 1991 Weed Science Society of America 

References

Literature Cited

1. Dye, W. B. 1956. Chemical studies on Halogeton glomeratus . Weeds 4:55–60.CrossRefGoogle Scholar
2. Everist, S. L. 1981. Gramineae (Poaceae). p. 338–340 in Everist, S. L., Poisonous Plants of Australia. Angus and Robertson, Publ., Sydney, Australia.Google Scholar
3. Groenendyk, S., and Seawright, A. A. 1974. Osteodystrophia fibrosa in horses grazing Setaria sphacelata . Aust. Vet. J. 50:131–132.CrossRefGoogle Scholar
4. Hoagland, D. R., and Arnon, D. I. 1950. Water culture method for growing plants without soil. Calif. Agric. Exp. Stn. Circ. 347.Google Scholar
5. Kingsbury, J. M. 1964. Poisonous principles. p. 42–43 in Kingsbury, J. M., Poisonous Plants of the United States and Canada, Prentice-Hall, Inc., Englewood Cliffs, NJ.Google Scholar
6. Martinovich, D., and Smith, B. 1972. Kikuyu poisoning in sheep. N.Z. Vet. J. 29:169.CrossRefGoogle Scholar
7. Martinovich, D., and Smith, B. 1973. Kikuyu poisoning in cattle. 1. Clinical and pathological findings. N.Z. Vet. J. 21:55–63.CrossRefGoogle ScholarPubMed
8. Smith, B., and Martinovich, D. 1973. Kikuyu poisoning in cattle. 2. Epizootiological aspects. N.Z. Vet. J. 21:85–89.CrossRefGoogle ScholarPubMed
9. Walthall, J. C., and McKenzie, R. A. 1976. Osteodystrophia fibrosa in horses at pasture in Queensland: field and laboratory observations. Aust. Vet. J. 52:11–16.CrossRefGoogle ScholarPubMed
10. Williams, M. C. 1960. Effect of sodium and potassium salts on growth and oxalate content of halogeton. Plant Physiol. 35:500–505.CrossRefGoogle ScholarPubMed