nitrate

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nitrate

 [ni´trāt]
any salt or ester of nitric acid; organic nitrates are used in the treatment of angina pectoris and as preservatives in meat products. Some individuals have sensitivity to nitrates and may suffer from headache, diarrhea, or urticaria after ingesting them.

ni·trate

(nī'trāt),
A salt of nitric acid.

nitrate

/ni·trate/ (ni´trāt) any salt of nitric acid; organic nitrates are used in the treatment of angina pectoris.

nitrate

[nī′trāt]
Etymology: Gk, nitron, soda
1 the ion NO3-.
2 a salt of nitric acid.

ni·trate

(nī'trāt)
A salt of nitric acid.

nitrate

any salt of nitric acid. High intakes by animals may occur when they eat large quantities of lush herbage that has been heavily fertilized with a nitrogen fertilizer such as potassium or ammonium nitrate. It can also occur after a long drought during which nitrification bacteria accumulate large amounts of nitrate in the soil and the first growth after the drought breaks may also be toxic.
Pigs fed on food residues may ingest potassium nitrate used in meat curing when their swill contains butcher's residues.

nitrate explosives
nitroglycerin and others used to blast out water holes and left in the hole may cause subsequent nitrate poisoning.
nitrate poisoning
unusual unless animals get access to unguarded fertilizer or butcher shop residue containing potassium nitrate. Causes gastroenteritis with diarrhea and vomiting. Long-term, low level intake thought to cause abortion in cattle. Chief importance is as a constituent of ruminant diet and its conversion in the rumen to nitrite causing nitrite poisoning.
nitrate reduction test
a biochemical reaction used in the identification of bacteria, particularly mycobacteria. It is based on the reduction of nitrate to nitrite and/or the release of nitrogen gas.
References in periodicals archive ?
There were significant positive correlations between NO3, SO4, Ca, Mg, Fe, Cu, Mo, Mn and Chl a/b; and opposite with photosynthetic pigments, gas exchange parameters, products.
The contents of NO3 , H2PO4 , Ca, K, Fe and Cu had the same change trends as Chl a/b; and had opposite change trends to Chl a, Chl b, Chl (a+b), Car, pN, gs, E, Ci/Ca, WUE and carbohydrate contents; that is, with decreasing contents of these ions, the other characteristics increased.
The correlation between NO3 and SO4 with Ca, Mg and NH4 suggests that acidity in rain water is neutralized by these alkaline species.
ii) Ca, Mg and NH4 react with H2SO4 and HNO3 to form their salts of NO3 and SO4.
The results of our study revealed that increasing the nitrogen rates also increased the NO3 contents combined with 50 Mg ha-1.
Dairy manure and nitrogen amendments had exerted variable effects on NO3 leaching, soil physical quality indicators and maize yield.