Maize plant nitrogen uptake dynamics at limited irrigation water and nitrogen.
Identifieur interne : 000852 ( Main/Exploration ); précédent : 000851; suivant : 000853Maize plant nitrogen uptake dynamics at limited irrigation water and nitrogen.
Auteurs : Hafiz Mohkum Hammad [Pakistan] ; Wajid Farhad [Pakistan] ; Farhat Abbas [Pakistan] ; Shah Fahad [République populaire de Chine] ; Shafqat Saeed [Pakistan] ; Wajid Nasim [Pakistan] ; Hafiz Faiq Bakhat [Pakistan]Source :
- Environmental science and pollution research international [ 1614-7499 ] ; 2017.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Fertilizers, Nitrogen, Soil, Water.
- methods : Agriculture.
- Agricultural Irrigation, Plant Roots, Plant Stems, Zea mays.
Abstract
Knowledge of the dynamics of plant nitrogen (N) uptake at varying irrigation water levels is critical for strategizing increased N recovery efficiency (NRE), water use efficiency (WUE), and maize yield. The N dynamics were studied under various irrigation regimes to evaluate NRE, WUE, and maize yield. A pot experiment was conducted using three irrigation water regimes (50, 75, and 100% field capacity (FC)) and four N fertilizer rates (0, 1.6, 3.2, and 4.8 g pot(-1)) applied with two fertilizer application methods including foliar and soil applications. The highest plant growth and grain yields were achieved by application of 4.8 g N pot(-1) with 100% FC. Contrarily, the maximum WUE (7.0 g L(-1)) was observed by the lowest irrigation water (50% FC) with the highest N fertilizer rates (4.8 g pot(-1)). Nitrogen concentration in the stem and grain was linearly increased by increasing N fertilizer rates with irrigation water. However, in the root, N concentration was decreased when the crop was supplied with 100% FC. In plant, maximum N uptake (6.5 mg g(-1)) was observed when 4.8 g N pot(-1) was applied with 100% FC. Nitrogen recovery efficiency was increased by increasing N rate up to 3.2 g pot(-1) with 100% FC. Therefore, for achieving maximum WUE and NRE, the highest water and N applications, respectively, are not necessary.
DOI: 10.1007/s11356-016-8031-0
PubMed: 27826823
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Maize plant nitrogen uptake dynamics at limited irrigation water and nitrogen.</title><author><name sortKey="Hammad, Hafiz Mohkum" sort="Hammad, Hafiz Mohkum" uniqKey="Hammad H" first="Hafiz Mohkum" last="Hammad">Hafiz Mohkum Hammad</name><affiliation wicri:level="1"><nlm:affiliation>Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100</wicri:regionArea><wicri:noRegion>61100</wicri:noRegion></affiliation></author><author><name sortKey="Farhad, Wajid" sort="Farhad, Wajid" uniqKey="Farhad W" first="Wajid" last="Farhad">Wajid Farhad</name><affiliation wicri:level="1"><nlm:affiliation>Department of Agronomy, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, 90150, Pakistan.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Agronomy, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, 90150</wicri:regionArea><wicri:noRegion>90150</wicri:noRegion></affiliation></author><author><name sortKey="Abbas, Farhat" sort="Abbas, Farhat" uniqKey="Abbas F" first="Farhat" last="Abbas">Farhat Abbas</name><affiliation wicri:level="1"><nlm:affiliation>Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, 38000, Pakistan.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, 38000</wicri:regionArea><wicri:noRegion>38000</wicri:noRegion></affiliation></author><author><name sortKey="Fahad, Shah" sort="Fahad, Shah" uniqKey="Fahad S" first="Shah" last="Fahad">Shah Fahad</name><affiliation wicri:level="1"><nlm:affiliation>College of 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Water and Marine Sciences, Uthal, 90150, Pakistan.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Agronomy, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, 90150</wicri:regionArea><wicri:noRegion>90150</wicri:noRegion></affiliation></author><author><name sortKey="Abbas, Farhat" sort="Abbas, Farhat" uniqKey="Abbas F" first="Farhat" last="Abbas">Farhat Abbas</name><affiliation wicri:level="1"><nlm:affiliation>Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, 38000, Pakistan.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, 38000</wicri:regionArea><wicri:noRegion>38000</wicri:noRegion></affiliation></author><author><name sortKey="Fahad, Shah" sort="Fahad, Shah" uniqKey="Fahad S" first="Shah" last="Fahad">Shah Fahad</name><affiliation wicri:level="1"><nlm:affiliation>College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China. shah_fahad80@yahoo.com.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei</wicri:regionArea><wicri:noRegion>Hubei</wicri:noRegion></affiliation></author><author><name sortKey="Saeed, Shafqat" sort="Saeed, Shafqat" uniqKey="Saeed S" first="Shafqat" last="Saeed">Shafqat Saeed</name><affiliation wicri:level="1"><nlm:affiliation>Department of Entomology, Muhammad Nawaz Shareef Agriculture University, Multan, Pakistan.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Entomology, Muhammad Nawaz Shareef Agriculture University, Multan</wicri:regionArea><wicri:noRegion>Multan</wicri:noRegion></affiliation></author><author><name sortKey="Nasim, Wajid" sort="Nasim, Wajid" uniqKey="Nasim W" first="Wajid" last="Nasim">Wajid Nasim</name><affiliation wicri:level="1"><nlm:affiliation>Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan. wajidnaseem2001@gmail.com.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100</wicri:regionArea><wicri:noRegion>61100</wicri:noRegion></affiliation></author><author><name sortKey="Bakhat, Hafiz Faiq" sort="Bakhat, Hafiz Faiq" uniqKey="Bakhat H" first="Hafiz Faiq" last="Bakhat">Hafiz Faiq Bakhat</name><affiliation wicri:level="1"><nlm:affiliation>Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan.</nlm:affiliation><country xml:lang="fr">Pakistan</country><wicri:regionArea>Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 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xml:lang="en"><term>Fertilizers</term><term>Nitrogen</term><term>Soil</term><term>Water</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Agriculture</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Agricultural Irrigation</term><term>Plant Roots</term><term>Plant Stems</term><term>Zea mays</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Agriculture</term><term>Azote</term><term>Eau</term><term>Engrais</term><term>Irrigation agricole</term><term>Racines de plante</term><term>Sol</term><term>Tiges de plante</term><term>Zea mays</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Knowledge of the dynamics of plant nitrogen (N) uptake at varying irrigation water levels is critical for strategizing increased N recovery efficiency (NRE), water use efficiency (WUE), and maize yield. The N dynamics were studied under various irrigation regimes to evaluate NRE, WUE, and maize yield. A pot experiment was conducted using three irrigation water regimes (50, 75, and 100% field capacity (FC)) and four N fertilizer rates (0, 1.6, 3.2, and 4.8 g pot(-1)) applied with two fertilizer application methods including foliar and soil applications. The highest plant growth and grain yields were achieved by application of 4.8 g N pot(-1) with 100% FC. Contrarily, the maximum WUE (7.0 g L(-1)) was observed by the lowest irrigation water (50% FC) with the highest N fertilizer rates (4.8 g pot(-1)). Nitrogen concentration in the stem and grain was linearly increased by increasing N fertilizer rates with irrigation water. However, in the root, N concentration was decreased when the crop was supplied with 100% FC. In plant, maximum N uptake (6.5 mg g(-1)) was observed when 4.8 g N pot(-1) was applied with 100% FC. Nitrogen recovery efficiency was increased by increasing N rate up to 3.2 g pot(-1) with 100% FC. Therefore, for achieving maximum WUE and NRE, the highest water and N applications, respectively, are not necessary.</div></front></TEI><affiliations><list><country><li>Pakistan</li><li>République populaire de Chine</li></country></list><tree><country name="Pakistan"><noRegion><name sortKey="Hammad, Hafiz Mohkum" sort="Hammad, Hafiz Mohkum" uniqKey="Hammad H" first="Hafiz Mohkum" last="Hammad">Hafiz Mohkum Hammad</name></noRegion><name sortKey="Abbas, Farhat" sort="Abbas, Farhat" uniqKey="Abbas F" first="Farhat" last="Abbas">Farhat Abbas</name><name sortKey="Bakhat, Hafiz Faiq" sort="Bakhat, Hafiz Faiq" uniqKey="Bakhat H" first="Hafiz Faiq" last="Bakhat">Hafiz Faiq Bakhat</name><name sortKey="Farhad, Wajid" sort="Farhad, Wajid" uniqKey="Farhad W" first="Wajid" last="Farhad">Wajid Farhad</name><name sortKey="Nasim, Wajid" sort="Nasim, Wajid" uniqKey="Nasim W" first="Wajid" last="Nasim">Wajid Nasim</name><name sortKey="Saeed, Shafqat" sort="Saeed, Shafqat" uniqKey="Saeed S" first="Shafqat" last="Saeed">Shafqat Saeed</name></country><country name="République populaire de Chine"><noRegion><name sortKey="Fahad, Shah" sort="Fahad, Shah" uniqKey="Fahad S" first="Shah" last="Fahad">Shah Fahad</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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