Nitrate and nitrite content of market potatoes

Heisler, E. G.; Siciliano, James; Krulick, S.; Porter, William L.; White, Jonathan

doi:10.1021/jf60190a029

Cited by 24 publications

(8 citation statements)

References 6 publications

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“…The values of the Spunta tubers were lower than those found by Serio et al (2002) in similar conditions, presumably because they used large doses of N. In this trial, differences between varieties were not so large compared to those found by other authors (Heisler et al, 1973;Cieslik and Sikora, 1998), and this may be due to differences between studied varieties and/or localities.…”

Section: Winter-spring Cropcontrasting

confidence: 60%

Influence of harvest date on nitrate contents of three potato varieties for off-season production

Ierna¹

2009

Journal of Food Composition and Analysis

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Section: Winter-spring Cropcontrasting

confidence: 60%

Influence of harvest date on nitrate contents of three potato varieties for off-season production

Ierna¹

2009

Journal of Food Composition and Analysis

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“…Although no data were presented for the tops, Kunkel et al (9) reported that the N concentration of the vines was poorly correlated with final tuber yield as the tops readily accumulated excess N. Lorenz et al (12) reported a maximum accumulation of 190 kg Njha in the tops and tubers with a 240 kg N jha application of (NH 4 ) 2 S0 4 • The N0 3 -N concentration of potato tubers wa.s increased by increased application of N fertilizer (2), but the levels were low compared to some other vegetables. The few published data suggest that there is no potential health hazard from N0 3 -N in tubers (2,5).…”

mentioning

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Nitrogen and Chloride Uptake by Irrigated Russet Burbank Potatoes¹

Saffigna¹,

Keeney²

1977

Agronomy Journal

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Potato production has become a major agricultural enterprise in the central sand plain of Wisconsin. However, little information is available on the effects of irrigation and fertilization practices on dry matter and N accumulation. This field study was established to determine the effect of reducing irrigation and fertilizer N on the dry matter, and the N and Cl in potatoes (Solanum tuberosum L., var. ‘Russet Burbank’) grown on a Plainfield loamy sand (Typic Udipsamment: sandy, mixed, mesic). Two basic treatments were used. The conventional treatment approximated current recommendations for irrigated potatoes and received 260 kg N/ha (as NH4NO3) in four applications and 45 an irrigation as 2.4 cm applications every 5 days. The improved treatment was intened to minimize leaching of NO3‐N. It received 170 kg N/ha in 10 applications (one as S‐coated urea and nine as NH4NO3) and 27.0 cm irrigation as 1.0 cm applications every 3 days. Chloride (as KCl) accompanied N on a 1:l weight basis. Plants were sampled weekly and analyzed for dry matter, total N, NO3‐N, and Cl. Plants accumulated 3 to 4 kg N/ha/day from 20 to 70 days after emergence. The maximum N uptake for the whole plant (tops and tubers) was 170 to 250 kg N/ha about 90 days after emergence. The maximum uptake of N in the tops was 125 and 80 kg N/ha in the conventional and improved treatments, respectively. Tuber yields and N uptake were similar between treatments with tubers containing 1.3 to 1.5% N most of the growing season and 130 to 140 kg N/ha (27 to 30 kg N/100 q) at harvest. Plants accumulated 115 to 145 kg Cl/ha, mostly in the tops (90 to 120 kg Cl/ha) with 25 to 40 kg Cl/ha in the harvested tubers. Nitrate‐N levels were low (<100 mg/kg) in tubers at all samplings. Nitrate‐N was >2,000 mg/kg in the tops during the first half of the growing season and accounted for 10 to 25% of the total N. Due to competitive antagonism, Cl reduced NO3‐N concentration in tops and petioles, and total N in tops and tubers. The results from this study show that tuber growth and N content were not appreciably affected by substantial reductions in the quantity of fertilizer N (90 kg N/ha) and irrigation (18 cm) applied although foliage dry matter and N accumulation were reduced. However, the additional effort required to effect this small saving in N fertilizer cannot currently be justified.

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“…Converted as needed from original data. Numbers of samples in parentheses.6 Potato data from Heisler et al (1973). c Reported here under "fresh" though actually processed.…”

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Relative significance of dietary sources of nitrate and nitrite

White¹

1975

J. Agric. Food Chem.

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258

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WHITEchlordene, unexpectedly, gave a CI5 derivative (VI) by loss of the sec-chlorine atom rather than the allylic chlorine.From the postulated structure, III, for -chlordene it would appear that removal of HC1, to form a third double bond, is possible. However, to date attempts to eliminate HC1 with NaOH, NaOMe, or AgzCOs have failed. The formation of a third double bond in -chlordene would have given a skeletal comparison with "lumibullvalene", a polycyclic C10H10 hydrocarbon which has a similar tricyclo ring system (Scott and Jones, 1972) (Figure 5). However, the slow low-temperature pyrolysis of lumibullvalene gives dihydrolumibullvalene (Jones, 1967; Katz and Cheung, 1969) which has the basic -chlordene carbon skeleton structure. Also, in keeping with the above photochemical reaction of -chlordene is the observation that lumibullvalene is rapidly converted, even at -100°, to XX by intramolecular cycloaddition. Also of interest is the similarity of the photocycloaddition structure XVI, from -chlordene, to two metabolites of dieldrin (Matsumura et al., 1968) obtained by breakdown of dieldrin by soil microorganisms (Figure 5).From the postulated structure of -chlordene the thermal rearrangement to only -chlordene can be envisaged. However, this mechanism needs further clarification as do the free-radical mechanisms for the formation of -, ß-, and -chlordene from chlordene by the action of CI2 or BZ2O2. Further work is progressing along these lines together with a full spectral analysis, including 13C NMR and chlorine nuclear quadrupole resonance of these isomers and their derivatives (Gáb et al., 1975a,b).

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Nitrate and nitrite content of market potatoes

Cited by 24 publications

References 6 publications

Influence of harvest date on nitrate contents of three potato varieties for off-season production

Influence of harvest date on nitrate contents of three potato varieties for off-season production

Nitrogen and Chloride Uptake by Irrigated Russet Burbank Potatoes¹

Relative significance of dietary sources of nitrate and nitrite

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Nitrate and nitrite content of market potatoes

Cited by 24 publications

References 6 publications

Influence of harvest date on nitrate contents of three potato varieties for off-season production

Influence of harvest date on nitrate contents of three potato varieties for off-season production

Nitrogen and Chloride Uptake by Irrigated Russet Burbank Potatoes1

Relative significance of dietary sources of nitrate and nitrite

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Nitrogen and Chloride Uptake by Irrigated Russet Burbank Potatoes¹