Added Nitrogen Interaction in the Soil-Plant System-A Review

Azam, Farooq

doi:10.3923/ja.2002.54.59

Cited by 33 publications

(15 citation statements)

References 5 publications

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“…Besides being absorbed by crop plants, once mobilized by added N interaction, soil N is more likely to be lost from the soil plant system. Indeed, increased soil-derived N loss through denitrification and NO 3 – leaching after addition of NH 4 + has been reported in previous studies using the 15 N tracing methods. , Such losses of soil N due to the added N interaction cannot be simply accounted for by the conventional difference method (i.e., the difference in N loss between plots receiving N and controls not receiving N), which may inappropriately ascribe this native soil N loss to fertilizer N loss, despite the fact that this increased soil-derived N loss is still fertilizer-induced and the net effect of added N interaction on measured cumulative N loss may be very small due to the common occurrence of pool substitution …”

Section: Introductionmentioning

confidence: 93%

“…The 15 N isotope can be used to directly investigate the fate of fertilizer nitrogen (N) applied to crops and can distinguish soil- and fertilizer-derived N . This approach revealed that uptake of soil native N by crops is increased when fertilizer is applied, and less fertilizer N was recovered compared with the conventional difference method (calculated from the difference in N uptake by plants between the plot receiving N and the no N addition control). − This phenomenon is due to the “added N interaction” − (sometimes also appropriately called a “priming” effect), , and it can increase the mobility of soil N reserves and conserved fertilizer N through pool substitution, displacement reactions, or immobilization, especially when ammonium (NH 4 + )-based fertilizers are added . Besides being absorbed by crop plants, once mobilized by added N interaction, soil N is more likely to be lost from the soil plant system.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Use of Nitrogen Isotope To Determine Fertilizer- and Soil-Derived Ammonia Volatilization in a Rice/Wheat Rotation System

Zhao

Yan

Xie

et al. 2016

J. Agric. Food Chem.

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The nitrogen (N) isotope method reveals that application of fertilizer N can increase crop uptake or denitrification and leaching losses of native soil N via the "added N interaction". However, there is currently little evidence of the impact of added N on soil N losses through NH3 volatilization using (15)N methodologies. In the present study, a three-year rice/wheat rotated experiment with 30% (15)N-labeled urea applied in the first rice season and unlabeled urea added in the following five crop seasons was performed to investigate volatilization of NH3 from fertilizer and soil N. We found 9.28% of NH3 loss from (15)N urea and 2.88-7.70% declines in (15)N-NH3 abundance occurred during the first rice season, whereas 0.11% of NH3 loss from (15)N urea and 0.02-0.21% enrichments in (15)N-NH3 abundance happened in the subsequent seasons. The contributions of fertilizer- and soil-derived N to NH3 volatilization from a rice/wheat rotation were 75.8-88.4 and 11.6-24.2%, respectively. These distinct variations in (15)N-NH3 and substantial soil-derived NH3 suggest that added N clearly interacts with the soil source contributing to NH3 volatilization.

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Use of Nitrogen Isotope To Determine Fertilizer- and Soil-Derived Ammonia Volatilization in a Rice/Wheat Rotation System

Zhao

Yan

Xie

et al. 2016

J. Agric. Food Chem.

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“…Swine manure recorded higher amount of total nitrogen, organic carbon and CN ratio. By this higher CN ratio, the rate of mineralization is expected to be lower in the soil amended with swine manure relative to the soil amended with poultry manure (Azam, 2002;Uzoh et al, 2015). The soil physicochemical properties of the control site and manure amended soil are shown in Tables 2 and 3.…”

Section: Manure Characterizationmentioning

confidence: 99%

Effects of animal manures on enzymes activities and physico-chemical properties of a degraded humid ultisol

Afangide¹,

Okoli²,

Okon³

et al. 2021

Agro-Sci.

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Application of animal manures for soil amendment plays a major role in the improvement of soil properties and enzymatic activities of a degraded Ultisol. This study assessed the effects of poultry manure (PM) and swine manure (SM) on the activities of catalase and urease enzymes and some soil properties. The PM and SM were applied at the rate of 30 t ha–1 each on experimental plots arranged in a randomized complete block design with three replicates. Soil samples were collected at day 0, 14, 28, 42, 56, 70 and 84 from 0-15 and 15-30 cm depths and analyzed for catalase and urease enzymes and some soil properties using standard procedures. The results showed increase in soil pH (in H2O) from 4.0 to 5.4 following manure application. At 0-15 cm soil depth, PM and SM recorded 28.1 and 28.8% increases in soil pH (in H2O), respectively. Soil organic carbon was highest (2.6 g kg–1) at 0-15 cm depth for soil amended with SM while the lowest value of 1.1 g kg–1was obtained at 15-30 cm depth for soil unamended with SM. In PM-amended soil, catalase activities ranged from 1.32 to 6.77 mg g–1 while its activities in SM-treated soil significantly (p < 0.05) varied between 1.55 and 8.11 mg g–1. Urease showed ranges of 0.72-3.90 mg g–1 and 0.96-4.71 mg g–1 in PM-amended and SM-treated soils, respectively. The results uphold that animal manures improve soil properties and are enzymatically controlled.

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“…Jenkinson et al [33] introduced the term "Added Nitrogen Interaction" or "priming effect" to describe any effect that the addition of N (i.e. organic N in the green manure) may have on the native soil N. Azam [34] reported that the extra nitrogen comes from soil organic matter as a result of the interaction of the added nitrogen. An increase in N availability from sources like soil organic matter could be attributed to a priming effect of the added nitrogen [34].…”

Section: Effect Of Green Manuring With Pea and Faba Bean Pod Shell Onmentioning

confidence: 99%

“…organic N in the green manure) may have on the native soil N. Azam [34] reported that the extra nitrogen comes from soil organic matter as a result of the interaction of the added nitrogen. An increase in N availability from sources like soil organic matter could be attributed to a priming effect of the added nitrogen [34]. In other words, the added nitrogen interacts with the N already present in the soil, in a way to increase the availability of the later.…”

Section: Effect Of Green Manuring With Pea and Faba Bean Pod Shell Onmentioning

confidence: 99%

Growth, Nitrogen and Phosphorus Uptake of Sorghum Plants as Affected by Green Manuring with Pea or Faba Bean Shell Pod Wastes Using 15N

Al-Chammaa¹,

Al-Ain²,

Kurdali³

2019

TOASJ

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Background: During the freezing or canning preparation process of green grain leguminous, large amounts of shell pods are considered as agricultural organic wastes, which may be used as Green Manure (GM) for plant growth enhancement. Objective: Evaluation of the effectiveness of soil amended with shell pod wastes of pea (PGM) or faba bean (FGM) as GM on growth, nitrogen and phosphorus uptake in sorghum plants. Methods: Determination of the impact of adding four rates of nitrogen (0, 50, 100, and 150 kg N ha-1) in the form of pea (PGM) or faba bean (FGM) shell pod wastes as GM on the performance of sorghum using the indirect 15N isotopic dilution technique. Results: Sorghum plants responded positively and differently to the soil amendments with either GMs used, particularly, the PGM. In comparison with the control (N0), soil amendment with an equivalent rate of 3.5 t ha-1 of PGM (PGM100) or with 6.5 t ha-1 of FGM (FGM150) almost doubled dry weight, N and P uptake in different plant parts of sorghum. Regardless of the GM used, estimated values of %Ndfgm in sorghum plants ranged from 35% to 55% indicating that the use of pod shells as GM provided substantial portions and amounts of N requirements for sorghum. Moreover, nitrogen recoveries of added GM (%NUEgm) ranged from 29 to 45% indicating that N in both of GM forms were used effectively. Accordingly, equivalent amounts to 17 - 48 kg N ha-1 of inorganic fertilizer may be saved. The beneficial effect of incorporating pod shells in soil on sorghum N was mainly attributed to their N availability, besides to their effects on the improvement of soil N uptake, particularly when using PGM. Conclusion: The agricultural by-products of faba bean and pea pod shells could be used as GM for sorghum growth improvement by enhancing N and P uptake from soil and from the organic source.

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Added Nitrogen Interaction in the Soil-Plant System-A Review

Cited by 33 publications

References 5 publications

Use of Nitrogen Isotope To Determine Fertilizer- and Soil-Derived Ammonia Volatilization in a Rice/Wheat Rotation System

Use of Nitrogen Isotope To Determine Fertilizer- and Soil-Derived Ammonia Volatilization in a Rice/Wheat Rotation System

Effects of animal manures on enzymes activities and physico-chemical properties of a degraded humid ultisol

Growth, Nitrogen and Phosphorus Uptake of Sorghum Plants as Affected by Green Manuring with Pea or Faba Bean Shell Pod Wastes Using 15N

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