Antonio Delgado

Prof. Dr. Antonio Delgado

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Research Focus & Metrics

Academic Career Length

33Years (1994-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2002 in Plant and Soil
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Journal Article
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ADAntonio Delgado
Antonio Delgado
AMAntonio Madrid
Antonio Madrid
SKShawkat Kassem
Shawkat Kassem
LALuis Andreu
Luis Andreu
MCMaria Carmen del Campillo
Maria Carmen del Campillo

16 September 2016 in Soil Use and Management
Verified
Journal Article
Open access
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JSJ. J. Schröder
J. J. Schröder
RSR. P. O. Schulte
R. P. O. Schulte
RCR. E. Creamer
R. E. Creamer
ADAntonio Delgado
Antonio Delgado
JLJ. van Leeuwen
J. van Leeuwen
DWD. P. Wall
D. P. Wall
Cycling of nutrients, including nitrogen and phosphorus, is one of the ecosystem services we expect agricultural soils to deliver. Nutrient cycling incorporates the reuse of agricultural, industrial and municipal organic residues that, misleadingly, are often referred to as ‘wastes’. The present review disentangles the processes underlying the cycling of nutrients to better understand which soil properties determine the performance of that function. Four processes are identified (i) the capacity to receive nutrients, (ii) the capacity to make and keep nutrients available to crops, (iii) the capacity to support the uptake of nutrients by crops and (iv) the capacity to support their successful removal in harvested crop. Soil properties matter but it is imperative that, as constituents of ‘soil quality’, they should be evaluated in the context of management options and climate and not as ends in their own right. The effect of a soil property may vary depending on the prevailing climatic and hydrologic conditions and on other soil properties. We recognize that individual soil properties may be enhancing one of the processes underlying the cycling of nutrients but simultaneously weakening others. Competing demands on soil properties are even more obvious when considering other soil functions such as primary production, purification and flow regulation of water, climate modification and habitat provision, as shown by examples. Consequently, evaluations of soil properties and management actions need to be site‐specific, taking account of local aspects of their suitability and potential challenges.

1 January 2016
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Book Chapter
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ADAntonio Delgado
Antonio Delgado
JGJosé A. Gómez
José A. Gómez

22 February 2021 in Agronomy
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Journal Article
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RRRamiro Recena Recena
Ramiro Recena Recena
AGAna M. García-López
Ana M. García-López
ADAntonio Delgado
Antonio Delgado
Zinc (Zn) deficiency constrains crop yield and quality, but soil factors influencing Zn availability to plants and reactions of applied Zn fertilizer are not fully understood. This work is aimed at studying Zn availability in soil and the use efficiency of Zn fertilizers by plants as affected by soil properties and particularly by soil available P. We performed a pot experiment involving four consecutive crops fertilized with Zn sulfate using 36 soils. The cumulative Zn uptake and dry matter yield in the four crops increased with increased initial diethylenetriamine pentaacetic acid extraction of Zn (DTPA-Zn) (R2 = 0.75 and R2 = 0.61; p < 0.001). The initial DTPA-Zn increased with increased Olsen P (R2 = 0.41; p < 0.001) and with increased ratio of Fe in poorly crystalline to Fe in crystalline oxides (R2 = 0.58; p < 0.001). DTPA-Zn decreased with increased cumulative Zn uptake, but not in soils with DTPA-Zn < 0.5 mg kg−1. Overall, the available Zn is more relevant in explaining Zn uptake by plants than applied Zn sulfate. However, in Zn-deficient soils, Zn fertilizer explained most of the Zn uptake by crops. Poorly crystalline Fe oxides and P availability exerted a positive role on Zn availability to plants in soil.

1 November 2000 in Soil Science Society of America Journal
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Journal Article
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ADAntonio Delgado
Antonio Delgado
JTJose Torrent
Jose Torrent

3 December 2010 in Plant and Soil
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Journal Article
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ASAna de Santiago
Ana de Santiago
JAJosè Manuel Quintero Ariza
Josè Manuel Quintero Ariza
Manuel AvilésManuel Avilés
Manuel Avilés
ADAntonio Delgado
Antonio Delgado