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Mohammad, Munir J.; Zuraiqi, S.; Quasmeh, W.; Papadopoulos, I.

doi:10.1023/a:1009855426670

Cited by 35 publications

(5 citation statements)

References 11 publications

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“…Only a small part of the N given in excess carries over to the succeeding crops, whereas most of fertilizer N applied to potato is presumably lost over summer by volatilization (N 2 O and NH 3 ) and in autumn, when rainfall exceeds evapotranspiration, by leaching of NO 3 and becomes a risk especially for groundwater and watercourses. ANRE values of about 60% found in N100 plots are in agreement with those found in semi-arid regions [18] and in temperate areas [33], while in more arid areas, such as Turkey and Jordan, values < 40% were found [10,17]. Greenwood and Drycott [34] attributed lower values of ANRE in potato crop, compared to other crops like cereals and grasses, to its lower root density, which causes some of the N fertilizer applied to potato to be remote from the roots for a considerable time before being absorbed.…”

Section: Discussionsupporting

confidence: 82%

“…In this research, values of crop nitrogen uptake were found to be lower than those in other Mediterranean environments at equal doses of N fertilizers applied [18,19]. This is mainly attributable to the fact that we distributed nitrogen top-dressed in the solid state (as is usually applied), whereas these researchers used fertigation, which is known to enhance N recovery and N use efficiency [17,18]. Increasing nitrogen rates resulted in a marked decrease of nitrogen recovery efficiency (ANRE), in agreement with other authors [18,19,33] and in a decrease of all nitrogen efficiency indices studied, confirming the trends reported by literature [8,16,18,19,24,34].…”

Section: Discussionmentioning

confidence: 67%

“…As the N crop response is genotype-dependent [14], it would be useful to have this information on selected cultivars that may differ for biological, morphological and productive traits. With the exception of a few contributions [17][18][19], each investigating the effects of the nitrogen fertilization rate on the fate of N fertilizer, N uptake capacity and tuber yield in the Mediterranean environment, on one sole cultivar and for no more than two years, no attempts have focused to date on NUE and on defining economically optimum N fertilizer rates for early potato production. The goal of this work was, over a three-season period, (i) to evaluate the effects of different nitrogen fertilization rates on N uptake, tuber yield, nitrogen efficiency and ii) to determine the economically optimum N fertilizer rates in five different genotypes to achieve a more sustainable and cost-effective nitrogen fertilization management of early potato crops in a Mediterranean environment.…”

Section: Introductionmentioning

confidence: 99%

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Sustainable and Profitable Nitrogen Fertilization Management of Potato

Ierna

Mauromicale

2019

Agronomy

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Nitrogen fertilization is indispensable to improving potato crop productivity, but there is a need to manage it suitably by looking at environmental sustainability. In a three-season experiment, we studied the effects of five nitrogen (N) fertilization rates: 0 (N0), 100 (N100), 200 (N200), 300 (N300) and 400 (N400) kg N ha−1 on crop N uptake, apparent nitrogen recovery efficiency (ANRE), tuber yield, nitrogen use efficiency (NUE), nitrogen uptake efficiency (NUpE), nitrogen utilization efficiency (NUtE) and agronomic nitrogen use efficiency (AgNUE) of five different potato cultivars: Daytona, Ninfa, Rubino, Sieglinde and Spunta. The economically optimum N fertilizer rates (EONFR) were also calculated. In seasons with high soil nitrogen availability for the crop (about 85 kg ha−1 of N), tuber yield increased only up to N100 and ANRE was about 50%; in seasons with medium (from 50 to 60 kg ha−1 of N) soil N availability, tuber yield increased up to N200 and ANRE was about 45%. Rubino and Sieglinde (early cultivars) responded for tuber yield only up to N100; Daytona, Ninfa, Spunta (late cultivars) up to N200, showing the highest values of NUE, NUpE, NUtE and AgNUE at N100. EONFR ranged from 176 to 268 kg ha−1 in relation to cultivar and season, but the reduction by 50% led to a tuber yield decrease of only around 16%. The adoption of cultivars characterized by high AgNUE at a low N rate and a soil nitrate test prior to planting, are effective tools to achieve a more sustainable and cost-effective nitrogen fertilization management.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

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Sustainable and Profitable Nitrogen Fertilization Management of Potato

Ierna

Mauromicale

2019

Agronomy

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“…Previous studies of NUE in potato (Errebhi et al, 1998;Hewitt, 1963;Kleinkopf, Westermann, & Dwelle, 1981;Mohammad Rusan, Zuaraiqi, Quasmeh, & Papadopoulos, 1999;Sattelmacher, Kuene, Malagamba, & Moreno, 1990a, 1990bSharifi, Zebarth, & Coleman, 2007;Westerman & Klienkopf, 1985;Zebarth, Tai, Tarn, De Jong, & Milburn, 2004Zvomuya, Rosen, & Miller, 2002) differ in their definition of NUE and the units used in its calculation (Tiwari, Plett, Garnett, Chakrabarti, & Singh, 2018). However, the underlying concept across crops is that NUE expresses crop yield as a function of added N. In this study we chose to partition NUE into N uptake efficiency (NUpE), measured as plant N divided by added N, and N utilization efficiency (NUtE), measured as yield divided by plant N (Bock, 1984;Moll, Camprath, & Jackson, 1982).…”

Section: Crop Sciencementioning

confidence: 99%

Nitrogen uptake and utilization in advanced fresh‐market red potato breeding lines

Jones

Michaels

Carley³

et al. 2021

Crop Science

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Potato (Solanum tuberosum L.) production on sandy soils requires added N. Only 40-60% of the applied N is acquired by the crop. Increased N use efficiency (NUE) and its components, N utilization efficiency (NUtE) and N uptake efficiency (NUpE), could reduce fertilizer rates and environmental losses. We compared N efficiency in fresh-market red potato varieties, in terms of yield and quality traits, and examined potential mechanisms for that efficiency including uptake, utilization, and increased root growth. We grew selections from a red potato breeding population and commercial varieties under two N rates: 101 and 202 kg N ha −1. We compared NUE, NUpE, and NUtE in low and high N. We compared root phenotypes at tuber initiation and yield and skin quality metrics at harvest. Values for NUtE correlated with NUE and yield in low N and NUpE correlated with NUE and yield in high N. Low-N conditions produced smaller tubers, while high N resulted primarily in medium tubers. Nitrogen did not affect skinning and redness but low N did result in slightly lighter skin color. Total root mass 45 d after planting (DAP) correlated with final yield and NUE but did not correlate with measures of N uptake across treatments. Larger roots correlated with NUpE only in the high-N treatment. Selection under low N may reveal NUE and expose more stable representations of the genetic components of skin quality phenotypes. While skinning and skin color were more variable among varieties in low N, within variety they exhibited year-to-year consistency. 1 INTRODUCTION Potato (Solanum tuberosum L.) is the third most important food crop in the world (FAO, 2018). As the global population increases (United Nations, 2015), potato production must

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“…Fertilizer application methods and timing are one of the most important factors affecting the fertilizer use efficiency (Mohammad et al, 1999). Out of different fertilizer application methods, fertigation is regarded as the most reliable one (Hou et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

The effects of nitrogen fertilization strategies on the productivity of maize (Zea mays L.) hybrids

Iqbal

Khan

Ehsanullah

et al. 2014

Zemdirbyste-Agriculture

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Nitrogen (N) is one of the major limitations to crop productivity. Therefore, a field study was conducted to examine the impacts of N application strategies: N 1 -20% of N at sowing through broadcast + 79% N at mid-season through fertigation + 1% of N at flowering through foliar application, N 2 -40% of N at sowing through broadcast + 59% of N at mid-season through fertigation + 1% of N at flowering through foliar, N 3 -60% of N at sowing through broadcast + 39% of N at mid-season through fertigation + 1% of N at flowering through foliar, N 4 -80% of N at sowing through broadcast + 19% of N at mid-season through fertigation + and 1% of N at flowering through foliar and N 5 -100% of N at sowing through broadcast, on the productivity of maize hybrids (H) single cross-6142 (H 1 ) and double cross-4444 (H 2 ) over a 2-year period, 2010-2011. During both years, N strategies and maize hybrids differed significantly for all the observed traits of yield and quality. The highest biological yield (16.99-17.62 t ha -1 ) and grain yield (6.83-7.16 t ha -1 ) were recorded by using the strategy N 3 . Similar trends were also observed for other traits except the grain oil content which was the maximum (3.38-3.98%) at N 5 . However, in both years, maximum biological yield (14.83-15.69 t ha -1 ) and grain yield (5.01-6.02 t ha -1 ) were evident in H 1 . the interactive effect of H 1 × N 3 gave maximum biological yield (17.55-20 t ha -1 ) and grain yield (7.53-8.83 t ha -1 ). In 2010 and 2011, the highest net income (1220-1272 USD ha -1 ) and benefit cost ratio (2.52-2.56) was also attained at H 1 × N 3 . In conclusion, our results suggested that maize productivity (grain yield up to 5.01-6.02 t ha -1 ) could be improved on economic basis (benefit cost ratio up to 2.52-2.56) by growing the single cross hybrid-6142 (H 1 ) with N application strategy N 3 .

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Untitled

Cited by 35 publications

References 11 publications

Sustainable and Profitable Nitrogen Fertilization Management of Potato

Sustainable and Profitable Nitrogen Fertilization Management of Potato

Nitrogen uptake and utilization in advanced fresh‐market red potato breeding lines

The effects of nitrogen fertilization strategies on the productivity of maize (Zea mays L.) hybrids

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