Effects of levels of nitrogen fertilizer on oxalate and some mineral contents in napiergrass (<i>Pennisetum purpureum</i> Schumach)

Rahman, Mohammad Mijanur; Ishii, Yasuyuki; Niimi, Mitsuhiro; Kawamura, Osamu

doi:10.1111/j.1744-697x.2008.00117.x

Cited by 12 publications

(17 citation statements)

References 11 publications

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“…High accumulation of some mineral elements was also found in the nitrate‐treated plants (Table 4). These results confirm our previous finding that there were positive correlations between oxalate and other mineral concentrations in napiergrass (Rahman et al. 2008).…”

Section: Discussionmentioning

confidence: 99%

“…2000). Rahman et al. (2008) reported that soluble oxalate concentration in napiergrass ( Pennisetum purpureum ) was highly correlated with K concentration, while insoluble oxalate concentration was correlated with Ca and Mg concentrations.…”

Section: Introductionmentioning

confidence: 99%

“…While application of urea to napiergrass did not result in excessive oxalate accumulation (Rahman et al. 2008, 2009), nitrate application resulted in higher oxalate accumulation in rice and some vegetable crops than ammonium application (Ji and Peng 2005; Zhang et al.…”

Section: Introductionmentioning

confidence: 99%

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Effect of application form of nitrogen on oxalate accumulation and mineral uptake by napiergrass (Pennisetum purpureum)

et al. 2010

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Oxalate occurs naturally in forage species, but excess levels of soluble oxalate adversely affect their nutritional quality as animal feed. Although induction of oxalate in plants has been associated with nitrate application, relatively little is known about oxalate in forage grasses. In the present study, we investigated oxalate accumulation and mineral uptake by napiergrass (Pennisetum purpureum, cv. dwarf‐late) cultured in complete nutrient solution containing either solely nitrate or mainly ammonium as the main form of nitrogen. Total (shoot and root) yield of plants did not differ significantly between the nitrate and ammonium treatments. By contrast, the nitrogen form significantly affected oxalate accumulation and mineral uptake by plants. Nitrate application resulted in higher concentrations of soluble and insoluble oxalates in the shoot and soluble oxalate in the root than ammonium application. Nitrate application also resulted in higher concentrations of sodium and calcium in the shoot, and higher concentrations of sodium, calcium and magnesium in the root than ammonium application. The results suggest that the application of nitrate fertilizer as the sole source of nitrogen should be avoided in the cultivation of oxalate‐rich forages, though further studies are needed under field conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of application form of nitrogen on oxalate accumulation and mineral uptake by napiergrass (Pennisetum purpureum)

et al. 2010

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“…In our previous studies [4,7,33], DL Napiergrass required high chemical fertilizer input for high DM production; it is also costly, making the required level of application unaffordable for smallholder farmers, and risks environmental pollution by rapid nutrient leaching under heavy rainfall. However, organic manure application has lower risk of nutrient leaching by mineralization when compared with chemical fertilizer input.…”

Section: Introductionmentioning

confidence: 99%

Effect of Repeated Application of Manure on Herbage Yield, Quality and Wintering Ability during Cropping of Dwarf Napiergrass with Italian Ryegrass in Hilly Southern Kyushu, Japan

et al. 2018

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Abstract:The effects of two levels of manure application (184 and 275 kg N ha −1 year −1 ) on herbage yield, quality, and wintering ability during the cropping of a dwarf genotype of late-heading (DL) Napiergrass (Pennisetum purpureum Schumach) oversown with Italian ryegrass (IR; Lolium multiflorum Lam.) were examined and compared with chemical fertilizer application (234 kg N ha −1 year −1 ) for 4 years to determine a sustainable and environmentally harmonized herbage production in a hilly area (340 m above sea level). No significant (p > 0.05) differences in growth attributes of plant height, tiller density, percentage of leaf blade, or dry matter yield appeared in either DL Napiergrass or IR among moderate levels (184-275 kg N ha −1 year −1 ) of manure and chemical fertilizer treatments. IR exhibited no significant detrimental effect on spring regrowth of DL Napiergrass, which showed a high wintering ability in all treatments. In vitro dry matter digestibility of DL Napiergrass tended to increase with increasing manure application, especially at the first defoliation in the first three years. Manure application improved soil chemical properties and total nitrogen and carbon content. The results suggested that the lower rate of manure application of 184 kg nitrogen ha −1 year −1 would be suitable, which would be a good substitute for chemical fertilizer application with an equilibrium nitrogen budget for sustainable DL Napiergrass and IR cropping in the hilly region of southern Kyushu.

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“…These and other studies [11] [12] to determine the effect of fertilizer use on oxalate levels in the leaves of plants have not provided conclusive data. The purpose of this study was to determine the level of oxalates in different portions of miners' lettuce and to determine whether the application of fertilizer would change the levels of oxalate in the raw leaves.…”

Section: Introductionmentioning

confidence: 99%

Oxalate Content of Miner’s Lettuce Irrigated with Water or Fertilizer Solutions

Kanala¹,

Savage²

2016

FNS

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The total, soluble and insoluble oxalate contents of the small, large and cauline leaves and small and large stems of miner's lettuce (Claytonia perfoliata) plants which had been irrigated with tap water or a soluble fertilizer were extracted and measured using HPLC chromatography. Overall, all plant parts of miner's lettuce analyzed contained high levels of total and soluble oxalates; however plants irrigated with fertilizer contained lower levels of oxalates compared with plants irrigated with water. On a dry matter basis, the small leaves contained higher levels of total oxalate when compared to the total oxalate in the large leaves. Soluble oxalate in the leaves of plants irrigated with water ranged from 2.6 to 7.5 mg/100g dry matter (DM) and was significantly higher (P < 0.05) than the leaves of the fertilizer-watered plants, which ranged from 1.8 to 2.8 mg/100g DM. The soluble oxalate in the small and large stems of the fertilizer-watered plants ranged from 1.20 to 1.5 mg/100g DM and was significantly lower (P < 0.05) than the water-treated small and large stems, which ranged from 3.75 to 4.4 mg/100g DM. It is recommended that the leaves of miner's lettuce should be consumed in moderation.

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Effects of levels of nitrogen fertilizer on oxalate and some mineral contents in napiergrass (Pennisetum purpureum Schumach)

Cited by 12 publications

References 11 publications

Effect of application form of nitrogen on oxalate accumulation and mineral uptake by napiergrass (Pennisetum purpureum)

Effect of application form of nitrogen on oxalate accumulation and mineral uptake by napiergrass (Pennisetum purpureum)

Effect of Repeated Application of Manure on Herbage Yield, Quality and Wintering Ability during Cropping of Dwarf Napiergrass with Italian Ryegrass in Hilly Southern Kyushu, Japan

Oxalate Content of Miner’s Lettuce Irrigated with Water or Fertilizer Solutions

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