Winter wheat agronomic traits and nitrate leaching under variable nitrogen fertilization

Šestak, Ivana; Mešić, Milan; Zgorelec, Željka; Kisić, Ivica; Bašić, Ferdo

doi:10.17221/188/2014-pse

Cited by 5 publications

(8 citation statements)

References 16 publications

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“…Next to nitrogen availability, the most significant factors affecting wheat grain quality and quantity also include climatic conditions [76][77][78][79]. Despite the ongoing advancement of agrotechnology and improvement of crop varieties, weather is still the main uncontrolled factor affecting agricultural production [78,80].…”

Section: Resultsmentioning

confidence: 99%

Efficiency of Nitrogen Fertilization of Winter Wheat Depending on Sulfur Fertilization

et al. 2020

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Optimization of fertilization enables to obtain a yield of high quality and quantity, brings economic profits, and reduces environmental threats. The aim of the three-year field experiment was to determine the efficiency of fertilization with a new fertilizer available on the Polish market and containing nitrogen (N) and sulfur (S) in proportions designed for cereals cultivation (30% N and 6% S as ammonium nitrate and ammonium sulfate). Other treatments included no fertilization; fertilization with ammonium nitrate (34% N); fertilization with standard nitrogen and sulfur fertilizer with N supplementation with ammonium nitrate. Nitrogen doses were 150, 200, and 250 kg N ha−1. Sulfur was applied in doses of 30, 40, and 50 kg S ha−1. A beneficial effect of using fertilizer containing N and S in proportions designed for cereals cultivation was observed. The highest mean optimal nitrogen dose and maximum winter wheat yield were recorded for the new fertilizer (217 kg N ha−1 and 8251 kg ha−1, respectively). Sulfur supplementation with the new fertilizer significantly increased apparent nitrogen recovery (mean values 48.9%, 44.6%, and 40.6% for doses 150, 200, and 250 kg N ha−1, respectively), agronomic efficiency (11.1 and 8.6 kg kg−1 N for doses 200 and 250 kg N ha−1, respectively), and physiological efficiency (24.7 kg kg−1 N for dose 200 kg N ha−1).

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Section: Resultsmentioning

confidence: 99%

Efficiency of Nitrogen Fertilization of Winter Wheat Depending on Sulfur Fertilization

et al. 2020

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“…The potential nitrates in groundwater did not represent a significant driver of ME variance. This following the negligible risk of leaching under Mediterranean conditions at a fertilization rate <200 kg·N·ha −1 split between sowing and stem elongation [42,45], which was applied as BG and LB for the uncertainty range of N–NO 3 − losses. Likewise, the possibility of rescue irrigation water (with respect to the rainfed cultivation applied as BG and LB in the study) did not substantially affect uncertainty of WD at the crop phase, which appeared mainly affected by the variance of up-stream water input along the supply chains of agricultural machineries and other agronomic auxiliaries.…”

Section: Resultsmentioning

confidence: 99%

“…Table 1 shows the best guess (BG) value (the best estimated value used in this study) and the uncertaintyrange for each agronomic foreground input and output related to wheat cultivation in Campania Region, as retrieved from regional technical specifications [39], statistics [38] and pertinent scientific literature [41,42,43,44,45,46,47,48,49,50,51]. In detail, specific agronomic input data were collected: from the site preparation until the harvest operation, considering type of agricultural machineries, seeding operations, type and application rate of mineral fertilizers and the other auxiliary chemicals.…”

Section: Methodsmentioning

confidence: 99%

“…In detail, specific agronomic input data were collected: from the site preparation until the harvest operation, considering type of agricultural machineries, seeding operations, type and application rate of mineral fertilizers and the other auxiliary chemicals. Afterwards, starting from the EcoInvent (v. 2.0) database [37], specific records were implemented for all the agricultural practices through the SimaPro software [33], in compliance with the reviewed pertinent literature and agronomic technical specifications for the analyzed regional context [38,39,40,41,42,43,44,45,46,47,48,49,50,51]. …”

Section: Methodsmentioning

confidence: 99%

“… a [39,42,43,45,50]; b Grain yield values retrieved from [51]; c Straw yield values based on an averaged straw-to-grain ratio of about 2 [38,42,44]; d Lower and upper bounds of DFE were derived on the basis of the combined effect of fertilizers input variations and uncertainty ranges of emission factors: 10%–20% for NH 3 –N volatilization factor, 0.08%–1% for N 2 O–N emission factor and 0.79–1.57 for kg CO 2 fossil emissions from 1 kg applied urea-N [46,47,48]; 0–5 ton·year −1 as range of soil erosion from regional plain cropped soil [49]. …”

Section: Figurementioning

confidence: 99%

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LCA of 1,4-Butanediol Produced via Direct Fermentation of Sugars from Wheat Straw Feedstock within a Territorial Biorefinery

et al. 2016

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The bio-based industrial sector has been recognized by the European Union as a priority area toward sustainability, however, the environmental profile of bio-based products needs to be further addressed. This study investigated, through the Life Cycle Assessment (LCA) approach, the environmental performance of bio-based 1,4-butanediol (BDO) produced via direct fermentation of sugars from wheat straw, within a hypothetical regional biorefinery (Campania Region, Southern Italy). The aim was: (i) to identify the hotspots along the production chain; and (ii) to assess the potential environmental benefits of this bio-based polymer versus the reference conventional product (fossil-based BDO). Results identified the prevailing contribution to the total environmental load of bio-based BDO in the feedstock production and in the heat requirement at the biorefinery plant. The modeled industrial bio-based BDO supply chain, showed a general reduction of the environmental impacts compared to the fossil-based BDO. The lowest benefits were gained in terms of acidification and eutrophication, due to the environmental load of the crop phase for feedstock cultivation.

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Biogas residues in substitution for chemical fertilizers: A comparative study on a grassland in the Walloon Region

Tsachidou

Scheuren

Gennen³

et al. 2019

Science of The Total Environment

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To provide sufficient quantities of food and feed, farming systems have to overcome limiting factors such as the nutrient depletion of arable soils. Nitrogen being the main mineral element required for plant growth, has led to the extensive use of chemical fertilizers causing nitrogen pollution of the ecosystems. This field study investigates the use of biogas residues (BRs) as biofertilizers and their contribution to the mitigation of nitrate leaching in agricultural soils, while also demonstrating the polluting nature of chemical fertilizers. Nine different fertilization treatments classified in three schemes and two nitrogen doses were tested for three consecutive years on a grassland in the Walloon Region of Belgium. Residual soil mineral nitrogen, percentage contribution of treatments in residual nitrate and agronomic performance were assessed for each fertilization treatment. The results obtained showed significant differences on treatment and scheme level regarding nitrate accumulation in the soil, with chemical fertilizers posing the highest nitrate leaching risk. BRs did not cause nitrate accumulation in the soil, and were N rate and rainfall independent, while the chemical treatments indicated a cumulative tendency under high N rate and low precipitation. Forage yield did not demonstrate statistical differences on treatment and scheme level but varied with changing precipitation, while the maximum application rate suggested a

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Winter wheat agronomic traits and nitrate leaching under variable nitrogen fertilization

Abstract: In the long-term field trial on an arable dystric Stagnosols, winter wheat (Triticum aestivum L.) grain yield, nitrogen use efficiency (NUE) and nitrate nitrogen

Cited by 5 publications

References 16 publications

Efficiency of Nitrogen Fertilization of Winter Wheat Depending on Sulfur Fertilization

Efficiency of Nitrogen Fertilization of Winter Wheat Depending on Sulfur Fertilization

LCA of 1,4-Butanediol Produced via Direct Fermentation of Sugars from Wheat Straw Feedstock within a Territorial Biorefinery

Biogas residues in substitution for chemical fertilizers: A comparative study on a grassland in the Walloon Region

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