Evaluation of Various Nitrogen Indices in N-Fertilizers with Inhibitors in Field Crops: A Review

Folina, Antigolena; Tataridas, Alexandros; Mavroeidis, Antonios; Kousta, Angeliki; Katsenios, Nikolaos; Efthimiadou, Αspasia; Travlos, Ilias; Roussis, Ioannis; Darawsheh, M. K.; Papastylianou, Panayiota; Kakabouki, Ioanna

doi:10.3390/agronomy11030418

Cited by 42 publications

(25 citation statements)

References 132 publications

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“…This could owe to more N availability in the root zone soil and minimum N losses to the surrounding environment. Folina et al [54] reported higher uptake by the field crops with coated N fertilizers. Likewise, deep placement of N fertilizer also enhanced N uptake by the rice crop [55].…”

Section: Discussionmentioning

confidence: 96%

Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization

et al. 2021

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Nitrogen (N) is an essential plant nutrient, therefore, N-deficient soils affect plant growth and development. The excessive and unwise application of N fertilizers result in nutrient losses and lower nutrient use efficiency that leads to the low crop productivity. Ammonia volatilization causes a major loss after N fertilization that causes environmental pollution. This experiment was conducted to evaluate the effectiveness of coating and uncoating N fertilizer in enhancing yield and nutrient-use efficiency with reduced ammonia emissions. The recommended rate of nitrogen and phosphorus, urea and di-ammonium phosphate (DAP) fertilizers were coated manually with 1% polymer solution. DAP (coated/uncoated) and potassium were applied at the time of sowing as subsurface application. While urea (coated/uncoated) was applied as surface and subsurface application. Results showed that nutrient use efficiencies of wheat were found to be maximum with the subsurface application of coated N fertilizer which increased nutrient-use efficiency by 44.57 (N), 44.56 (P) and 44.53% (K) higher than the surface application of uncoated N fertilizer. Ammonia emissions were found the lowest with subsurface-applied coated N fertilizer. Thus, coated fertilizer applied via subsurface was found the best technique to overcome the ammonia volatilization with an improvement in the yield and nutrient-use efficiency of wheat.

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Section: Discussionmentioning

confidence: 96%

Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization

et al. 2021

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“…Above − ground N uptake = DM (kg ha −1 ) * Above−ground tissues N content (%) 100 ( 1) [25] Seed N uptake = Seed yield * seed N content (%) 100…”

Section: Equation Equation Number Referencementioning

confidence: 99%

“…In addition, Nitrogen Utilization Efficiency (NUtE) is another index that describes the amount of the ground-absorbed N that has been utilized by the plant for seed production [ 24 ]. These indices allow us to estimate the nitrogen losses, as well as the amount of nitrogen that has been absorbed by the crop [ 25 ] and, thus, the efficiency of the fertilization rate. However, these indices do not assess the overall performance of the crop.…”

Section: Introductionmentioning

confidence: 99%

Reintroducing Flax (Linum usitatissimum L.) to the Mediterranean Basin: The Importance of Nitrogen Fertilization

Kakabouki

Mavroeidis

Tataridas

et al. 2021

Plants

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An increasing interest has been reported regarding the reintroduction of flax in the Mediterranean region. The aim of this present study was to evaluate the effects of nitrogen (N) fertilization on the performance of flax cv. Everest, under Mediterranean climate conditions. A two-year study was carried out in 2018–2019, in Western Greece. The experiment was set-up in a randomized complete block design with four replications and six treatments of different N fertilization rates (0, 20, 30, 40, 50, and 60 kg N ha−1). Measurements included plant biomass, the leaf area index (LAI), the yield, and the Growth Degree Days (GDDs) required for full seed maturity. The N uptake of flax was also evaluated utilizing the Nitrogen Harvesting (NHI) and Nitrogen Utilization Efficiency (NUtE) indices. Although the highest fertilization rate (60N) increased the yield by 35.4% (2018) and 23.1% (2019), a GDDs and N indices assessment revealed that it noted the lowest efficiency and may lead to significant yield losses, as it significantly prolonged the crop cycle. On the contrary, even though fertilization rates of 20 and 30 kg N ha−1 increased the yield only by 7% and 15% (on average), they were more efficient, and prolonged the crop cycle less (compared to 60N).

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“…Accordingly, N uptake is definitely a second level trait influencing N efficiency [16]. Moreover, NHI and N content are fairly important nitrogen indexes for evaluation of slow-release fertilizers in crops, like durum wheat, for which N absorption (and therefore protein content) needs to be calculated [17].…”

Section: Introductionmentioning

confidence: 99%

Durum Wheat Yield and N Uptake as Affected by N Rate, Timing and Source in Two Mediterranean Environments

Pampana¹,

Mariotti²

2021

Preprint

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In Nitrate Vulnerable Zones (NVZ) site-specific techniques are needed to match N availability with durum wheat (Triticum turgidum subsp. durum Desf.) requirements. Enhanced-efficiency fertilizers (EEF) can improve efficient N supply and reduce leaching, thus contributing to sustainable agriculture. To study the effects of rates, sources and timings of nitrogen application, two-year field experiments were carried out at two Mediterranean NVZs of Central Italy (Pisa and Arezzo). The trial compared: i) two N rates: one based on the crop N requirements (NO), the other on the Action Programmes’ prescriptions of the two NVZ (NAP); ii) three N sources (urea, methylene urea (MU), and nitrification inhibitor (NI) 3,4-Dimethylpyrazole phosphate (DMPP); and two top-dressing timings (1st tiller visible and 1st node detectable). Grain yield and yield components were determined, together with N uptake. Results showed that: i) grain and biomass production were reduced with NAP at both locations; ii) urea performed better than slow-release fertilizers; iii) the best application time varied depending on N source and location: at Pisa enhanced-efficiency fertilizers achieved higher yields when applied earliest, while for urea the contrary was true; at Arezzo different N fertilizers showed similar performances between the two application timings. Different behaviors of top-dressing fertilizers at the two localities could be related to the diverse patterns of temperatures and rainfall. Therefore, optimal fertilization strategies vary according to environmental conditions.

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Evaluation of Various Nitrogen Indices in N-Fertilizers with Inhibitors in Field Crops: A Review

Cited by 42 publications

References 132 publications

Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization

Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization

Reintroducing Flax (Linum usitatissimum L.) to the Mediterranean Basin: The Importance of Nitrogen Fertilization

Durum Wheat Yield and N Uptake as Affected by N Rate, Timing and Source in Two Mediterranean Environments

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