Growing season nitrate leaching as affected by nitrogen management in irrigated potato production

Clement, C. J.; Cambouris, Athyna N.; Ziadi, Noura; Zebarth, Bernie J.; Karam, Antoine

doi:10.1002/agj2.20387

Cited by 7 publications

(9 citation statements)

References 31 publications

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“…This was due to the greater water percolation in the irrigated site compared to the non-irrigated one. The results obtained under irrigation are consistent with previous studies in irrigated potato production systems, where NO 3 − -N leaching increased with fertilizer N application [9,12,39]. Residual soil inorganic N increased with increasing fertilizer N rate.…”

Section: Effect Of Fertilizer N Ratesupporting

confidence: 91%

“…However, other studies in Minnesota and Quebec found no clear difference in terms of NO 3 − -N leaching between a single application of ESN, and two applications of soluble N at planting and hilling [8,9] or six applications of soluble N (one at planting, one at emergence, and four at postemergence) at equivalent rates [13], suggesting that the effects of PCU on NO 3 − -N leaching may vary according to soil and environmental conditions. While some studies in Quebec investigated the efficiency of PCU for non-irrigated [14] or irrigated potato production systems [9,15,16], there has been no comparison of the use of PCU in irrigated potato production systems relative to that in non-irrigated systems with respect to its agronomic or environmental impacts.…”

Section: Introductionmentioning

confidence: 85%

“…Soil water samples were collected as described by Clément et al [9] using suction cup lysimeters (model 1900L36-B02M2; Soil Moisture Equipment Corp., Santa Barbara, CA, USA). One lysimeter was installed in the center of the hill of the second row of each plot using a 0.05-m diameter Dutch auger.…”

Section: Soil Water Nitrate Concentrationsmentioning

confidence: 99%

“…Studies on potatoes in Minnesota reported that a single application of PCU, whether polyolefin-coated urea or the new type of PCU called Environmentally Smart Nitrogen (ESN; Agrium, Inc., Calgary, AB, Canada), significantly reduced NO 3 − -N leaching under potato production compared to a split application of soluble N (at planting, emergence, and hilling), with no loss of crop yield [7,12]. However, other studies in Minnesota and Quebec found no clear difference in terms of NO 3 − -N leaching between a single application of ESN, and two applications of soluble N at planting and hilling [8,9] or six applications of soluble N (one at planting, one at emergence, and four at postemergence) at equivalent rates [13], suggesting that the effects of PCU on NO 3 − -N leaching may vary according to soil and environmental conditions. While some studies in Quebec investigated the efficiency of PCU for non-irrigated [14] or irrigated potato production systems [9,15,16], there has been no comparison of the use of PCU in irrigated potato production systems relative to that in non-irrigated systems with respect to its agronomic or environmental impacts.…”

Section: Introductionmentioning

confidence: 95%

“…The split application of fertilizer N reduces the soil N availability early in the season when the potato root system is not sufficiently developed to absorb and efficiently use all the available N [4,5]. Although split application of N fertilizer can reduce the potential for NO 3 − -N leaching compared to a single application at planting [4,6], NO 3 − -N leaching beyond the potato root zone generally remained high for split-applied conventional soluble N fertilizers Agronomy 2021, 11, 2055 2 of 18 in humid regions, with values ranging from 21 to 98 kg NO 3 − -N ha −1 [7][8][9]. Consequently, the introduction of new fertilizer technologies into potato production systems may help to reduce NO 3 − -N leaching, while sustaining productivity.…”

Section: Introductionmentioning

confidence: 99%

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Potato Yield Response and Seasonal Nitrate Leaching as Influenced by Nitrogen Management

et al. 2021

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Nitrate leaching is of great environmental concern, particularly with potatoes grown on sandy soils. This 3-year study evaluated the effect of three N rates (100, 150, and 200 kg ha−1) of single applications of polymer-coated urea (PCU) and a 75% PCU + 25% urea mixture, plus a conventional split application of 200 kg N ha−1 of a 50% ammonium sulfate + 50% calcium ammonium nitrate mixture (CONV) on NO3−-N leaching, potato yield, and N uptake under irrigated and non-irrigated conditions on a sandy soil in Quebec (Canada). Fertilizer N application increased growing season NO3−-N leaching only under irrigation. On average, irrigation increased seasonal NO3−-N leaching by 52%. Under irrigated conditions, PCU reduced NO3−-N leaching compared to PCU + urea. However, both PCU and PCU + urea significantly increased NO3−-N leaching compared to the CONV at the equivalent N rate of 200 kg N ha−1. This was attributed to the timing of soil N availability and deep-water percolation. Total (TY) and marketable (MY) yields in the CONV were similar to those in the PCU applied at the equivalent N rate of 200 kg N ha−1. Despite lower plant N uptake, PCU resulted in greater TY and MY compared to PCU + urea. Residual soil inorganic N was greater for PCU and PCU + urea compared to the CONV, providing evidence that PCU products have the potential to increase NO3−-N leaching after the growing season. In this study, PCU was an agronomically and environmentally better choice than PCU + urea. The results also showed that the efficiency of PCU to reduce seasonal NO3−-N leaching may vary according to the timing of precipitation and irrigation.

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Section: Effect Of Fertilizer N Ratesupporting

confidence: 91%

Section: Introductionmentioning

confidence: 85%

Section: Soil Water Nitrate Concentrationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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Potato Yield Response and Seasonal Nitrate Leaching as Influenced by Nitrogen Management

et al. 2021

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Cucumber production and the economic revenues under various nitrogen applications in an unheated solar greenhouse on the North China Plain

Liu

Yuan

et al. 2021

Agronomy Journal

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The over‐application of cucumber (Cucumis sativus L.) with nitrogen (N) fertilizers grown in greenhouses can produce adverse environmental consequences. In this study, a five‐season experiment was conducted from 2014 to 2018 to determine the influence of N rate on N use and economic returns. The experiment contained traditional N application under furrow irrigation (CK) and three N rates with drip irrigation, they are 100, 75, and 50% N applied in the check, referring to T100, T75, and T50, respectively. However, the irrigation rates in drip irrigation were approximately 40% lower than the check. The N losses from gas emission and leaching nitrate accounted for approximately 70% of the applied N when the traditional N rate was applied (CK and T100); however, the loss reduced to 12% in the T50 treatment. The highest cucumber production was found in the T100 treatment, which was 6.1 and 9.4% higher than the T75 and T50 treatments, respectively. The highest net revenue was found in the T100 treatment, followed by the CK (–5.8%), T75 (–7.6%), and T50 (–9.4%) treatments. The highest N productivity and economically applied N productivity were found in the T50 treatment, which were approximately 60% higher than those in the T100 and CK treatments. Fully considering the economic benefit, N productivity and environmental protection, the local N application for cucumber cultivation in greenhouses on the North China Plain (NCP) can be reduced by 50% with drip irrigation system.

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Potato and soil 15N recoveries from different labelled forage root and shoot

Whittaker

Nyiraneza

Zebarth

et al. 2023

Nutr Cycl Agroecosyst

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An improved understanding of the contribution of a preceding forage crop to a subsequent potato crop can improve nitrogen (N) utilization in potato production. This study used two rotation experiments to estimate the N contribution from labelled shoot and root of red clover (RC, Trifolium pratense), timothy (T, Phleum pratense) and a red clover/timothy mixture (M) to a subsequent potato crop using microplots in the field. Forage crops were grown with 14NH414NO3 and 15NH415NO3 (98 atom %). The residue exchange technique was used to compare residue treatments of (i) whole plant labelled; (ii) labelled shoot only; and (iii) labelled root only in Experiment 1, and residue treatments of (i) whole plant labelled; (ii) labelled shoot/unlabelled root; and (iii) labelled root/unlabelled shoot in Experiment 2. Averaged across forage treatments, recoverable root biomass represented 64 and 37% of total forage biomass, and the total 15N recovery from labelled roots was 52 and 62% of the total 15N recovery from shoots, in Experiments 1 and 2, respectively. Therefore, forage roots represented a substantial source of N for the subsequent crop. However, less than 5% of the 15N from crop residues was recovered in the potato vines plus tubers, and most of the 15N was recovered in the soil, regardless of the forage or residue treatments. Potato tuber and vine dry matter was greater for the RC than the T treatment for all residue treatments, a finding attributed to greater potato N accumulation for the RC treatment. It is therefore important to consider the contribution of forage roots when studying N cycling in potato systems. Potato N requirements were satisfied more by soil-derived N rather than from fall incorporated forage residues.

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Growing season nitrate leaching as affected by nitrogen management in irrigated potato production

Cited by 7 publications

References 31 publications

Potato Yield Response and Seasonal Nitrate Leaching as Influenced by Nitrogen Management

Potato Yield Response and Seasonal Nitrate Leaching as Influenced by Nitrogen Management

Cucumber production and the economic revenues under various nitrogen applications in an unheated solar greenhouse on the North China Plain

Potato and soil 15N recoveries from different labelled forage root and shoot

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