Effect of organic and inorganic fertigation on yields, δ<sup>15</sup>N values, and  <sup>13</sup>C values of tomato (Lycopersicon esculentum Mill. cv. Saturn)

Nakano, Akimasa; Uehara, Yoichi; Yamauchi, Akira

doi:10.1023/a:1026180700963

Cited by 40 publications

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“…The d 15 N values of urea fertilized plants were found to be 4.1 ± 1.7& compared to d 15 N values of 14.6 ± 3.3& for the compost fertilized vegetables. Nakano et al (2003) grew tomatoes with liquid mineral and organic fertigation. The nitrogen isotope composition of the organically fertilized tomatoes was up to 7& heavier than the tomatoes grown with mineral fertilizer.…”

Section: Discussionmentioning

confidence: 99%

“…A positive delta value signifies that the amount of the heavy isotope is greater in the sample than in the standard. The use of d 15 N values to differentiate between crops grown by organic and integrated production systems was proposed by Nakano et al (2003). In integrated cultivation systems ammonium nitrate is most commonly used as a nitrogen fertilizer.…”

Section: Introductionmentioning

confidence: 99%

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Multielement Isotope Ratios of Vegetables from Integrated and Organic Production

et al. 2005

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In this paper we discuss the use of isotope ratios as indicators of organic production. Few studies have investigated the influence of plant nutrition on the isotopic signatures of plants. As plant nutrition is often significantly different between integrated and organic production systems the isotope ratios in the plants may reflect this. Plant samples from a 2-year field-experiment were analyzed for 15 N, 13 C and 34 S content of the bulk-material and 18 O-content of the leaf water. In this experiment cabbages (Brassica oleracea v. capitata f. alba cv. Rolly), onions (Allium cepa cv. Alisa Craig), lettuces (Lactuca sativa v. capitata cv. Ponchito) and Chinese cabbage (Brassica pekinesis cv. Parkin) were cultivated according to good agricultural practices for integrated and organic production. No differences in the d 34 S and d 18 O values of the plants grown under the two production systems were observed. The organically produced vegetables were significantly enriched in 15 N and depleted in 13 C compared to those grown under the integrated system.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multielement Isotope Ratios of Vegetables from Integrated and Organic Production

et al. 2005

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“…Organic fertilizers such as solid pig manure (Choi et al 2002(Choi et al , 2003Yun et al 2006), chicken manure (Bateman et al 2005), cattle manure , corn steep liquor (Nakano et al 2003), hornmeal , and whole pig manure have been studied to show that their application increased 15 N enrichment in plant tissues when compared with synthetic fertilizer applications. However, we do not know if the application of LM fraction has the same effect on plant tissue d 15 N despite the wide use of LM fraction in organic cropping systems.…”

Section: Introductionmentioning

confidence: 99%

“…In a similar fashion, the stable C isotope ratio ( 13 C/ 12 C, expressed as d 13 C ) of crop tissues in conventional and organic farming system has been explored by a few researchers (Nakano et al 2003;Georgi et al 2005;Schmidt et al 2005). They hypothesized that plants under contrasting farming systems (conventional vs. organic) may have different d 13 C as plant d 13 C is an integrator of gas exchange response to different environmental conditions associated with water and nutrient stresses (Choi et al 2005a).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and carbon isotope responses of Chinese cabbage and chrysanthemum to the application of liquid pig manure

et al. 2007

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The effects of the liquid pig manure (LM) used in organic farming on the natural abundance of 15 N and 13 C signatures in plant tissues have not been studied. We hypothesized that application of LM will (1) increase d 15 N of plant tissues due to the high d 15 N of N in LM as compared with soil N or inorganic fertilizer N, and (2) increase d 13 C of plant tissues as a result of high salt concentration in LM that decreases stomatal conductance of plants. To test these hypotheses, variations in the d 15 N and d 13 C of Chinese cabbage (Brassica campestris L.) and chrysanthemum (Chrysanthemum morifolium Ramatuelle) with two different LMs (with d 15 N of +15.6 and +18.2%) applied at two rates (323 and 646 kg N ha -1 for cabbage and 150 and 300 kg N ha -1 for chrysanthemum), or urea (d 15 N = -2.7%) applied at the lower rate above for the respective species, in addition to the control (no N input) were investigated through a 60-day pot experiment. Application of LM significantly increased plant tissue d 15 N (range +9.4 to +14.9%) over the urea (+3.2 to +3.3%) or control (+6.8 to 7.7%) treatments regardless of plant species, strongly reflecting the d 15 N of the N source. Plant tissue d 13 C were not affected by the treatments for cabbage (range À30.8 to À30.2%) or chrysanthemum (À27.3 to À26.8%). However, cabbage dry matter production decreased while its d 13 C increased with increasing rate of LM application or increasing soil salinity (P < 0.05), suggesting that salinity stress caused by high rate of LM application likely decreased stomatal conductance and limited growth of cabbage. Our study expanded the use of the d 15 N technique in N source (organic vs. synthetic fertilizer) identification and suggested that plant tissue d 13 C maybe a sensitive indicator of plant response to salinity stress caused by high LM application rates.Keywords d 13 C Á d 15 N Á Liquid livestock manure Á Organic input Á Salinity Á Synthetic fertilizer Abbreviations LMLiquid manure SM Solid manure

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“…Do najczęściej wykorzystywanych izotopów pierwiastków w badaniach żywności należą izotopy wodoru (H), tlenu (O), azotu (N), węgla (C) i siarki (S). Pierwiastki te mają następujące izotopy : 1 H, 2 H, 3 H, 16 O, 17 O, 18 O, 14 N, 15 N, 12 C, 13 C, 14 S [10]. Pierwiastki i ich izotopy występują w różnych stężeniach zarówno w biosferze, jak również w roślinach, zwierzętach i w glebie [13].…”

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Applying Determined Ratios of Stable Isotopes Ratios in Selected Elements to Evaluate Authenticity of Organically Grown Products

Wlazły¹,

Targoński²

2014

ZNTJ

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WYKORZYSTANIE OZNACZEŃ STOSUNKÓW STABILNYCH IZOTOPÓW WYBRANYCH PIERWIASTKÓW W OCENIE AUTENTYCZNOŚCI PRODUKTÓW POCHODZĄCYCH Z UPRAW EKOLOGICZNYCHS t r e s z c z e n i e W artykule przedstawiono stan badań dotyczący stosunków stabilnych izotopów węgla i azotu w różnych artykułach spożywczych (warzywach, owocach, mięsie, mleku), które były produkowane metodami tradycyjnymi i ekologicznymi. Miara ilości ciężkiego i lekkiego izotopu w próbce oznaczana jest jako wartość δ. Na wartość δ WprowadzenieWzrasta zainteresowanie żywnością ekologiczną, uznawaną za bardziej bezpieczną dla zdrowia człowieka [5,12,25]. Produkcja żywności ekologicznej wyklucza moż-liwość stosowania pestycydów i nawozów mineralnych, a dopuszcza stosowanie nawozów organicznych [20]. Poszukuje się więc bardziej nowoczesnych metod umożliwiających sprawdzanie autentyczności produktów żywnościowych deklarowanych jako ekologiczne. Coraz większe zastosowanie zyskują metody bazujące na wyznaczeniu stosunków stałych izotopów pierwiastków w celu m.in. kontroli autentyczności produktów spożywczych, w tym także ich pochodzenia [24]. Wyznaczanie stosunków stabilnych izotopów węgla i azotu w różnych warzywach, mięsie i mleku jest również wykorzystywane do odróżnienia żywności produkowanej w warunkach ekologicznych od produkowanej metodami tradycyjnymi.Mgr inż. A. Wlazły, prof. dr hab. Z. Targoński,

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Effect of organic and inorganic fertigation on yields, δ¹⁵N values, and ¹³C values of tomato (Lycopersicon esculentum Mill. cv. Saturn)

Cited by 40 publications

References 0 publications

Multielement Isotope Ratios of Vegetables from Integrated and Organic Production

Multielement Isotope Ratios of Vegetables from Integrated and Organic Production

Nitrogen and carbon isotope responses of Chinese cabbage and chrysanthemum to the application of liquid pig manure

Applying Determined Ratios of Stable Isotopes Ratios in Selected Elements to Evaluate Authenticity of Organically Grown Products

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Effect of organic and inorganic fertigation on yields, δ15N values, and 13C values of tomato (Lycopersicon esculentum Mill. cv. Saturn)

Cited by 40 publications

References 0 publications

Multielement Isotope Ratios of Vegetables from Integrated and Organic Production

Multielement Isotope Ratios of Vegetables from Integrated and Organic Production

Nitrogen and carbon isotope responses of Chinese cabbage and chrysanthemum to the application of liquid pig manure

Applying Determined Ratios of Stable Isotopes Ratios in Selected Elements to Evaluate Authenticity of Organically Grown Products

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Product

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Effect of organic and inorganic fertigation on yields, δ¹⁵N values, and ¹³C values of tomato (Lycopersicon esculentum Mill. cv. Saturn)