https://m2.mtmt.hu/ hun 2026-05-02 06:51 JournalArticle 35997547 VALIDATED true 0 false 2026-04-06T17:11:40.901+0000 2025-12-25T02:35:05.400+0000 2025-03-19T10:18:47.763+0000 true 10036336 Csákyné Faragó Erzsébet /api/admin/10036336 Admin Csákyné Faragó Erzsébet (DE/MÉK/MNNBT admin 5) true 10036336 2025-12-25T02:35:05.150+0000 2025-12-25T02:35:05.352+0000 true 521 Szuper Admin /api/admin/521 Admin Szuper Admin (admin) true true false true 24 24 /api/publicationtype/24 PublicationType Folyóiratcikk 1 true 24 JournalArticle true 10000059 Article true 24 24 /api/publicationtype/24 PublicationType Folyóiratcikk 1 true 24 JournalArticle /api/subtype/10000059 Szakcikk SubType Szakcikk (Folyóiratcikk) 101 true 10000059 true 1 /api/category/1 Category Tudományos true 1 Kremper, Rita true true /api/journal/20063713 REVIEWED NITROGEN 2504-3129 true false false 20063713 true 2504-3129 Journal FOREIGN 6 1 19 19 13 2025 The development of critical levels for sap nitrate and chlorophyll meter reading (SPAD test) in the case of various crops is of great importance for growers in characterizing a plant’s N status. A field experiment with spring oat (Avena sativa L.) was carried out on loamy soil in Debrecen, Hungary, using a small-plot design. Ammonium nitrate was broadcast at rates of 0, 30, 60, and 90 kg N/ha in three replicates. The total N content of the plant, sap nitrate content, and SPAD values were measured at jointing when the first node appeared above the soil surface (Feekes 6) and at boot stage (Feekes 10). Regression analysis between total N content and sap nitrate showed cubic and linear relationships with r2 = 0.7982 (Feekes 6, whole plant) and 0.9625 (Feekes 10, upper developed leaves), respectively. Optimal grain yield was obtained when sap nitrate exceeded 650 mg/L and 540 mg/L at Feekes 6 and Feekes 10, respectively. There were linear and logarithmic relationships between total N content and SPAD values with r2 = 0.8058 and 0.6258 at Feekes 6 and 10. Optimal grain yield occurred over SPAD values of 43 and 48 at Feekes 6 and 10, respectively. Optimal N rate was 60 kg N/ha on the experimental site. 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2025-06-17T09:20:26.889+0000 Agrokémiai és Talajtani Intézet (DE / MÉK); Talajkémiai és Anyagforgalmi Osztály (HRN ATK / TAKI) 9 41 2 10 0 true Language 10002 /api/language/10002 Angol Angol English true 2 true PersonAuthorship 125093291 /api/authorship/125093291 Kremper, Rita [Erdeiné Kremper, Rita (Növénytáplálás), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 1 0.1 true false Author 10013222 /api/author/10013222 Erdeiné Kremper Rita (Növénytáplálás) Erdeiné Kremper Rita true 10013222 true Kremper Rita true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093292 /api/authorship/125093292 Juhász, Evelin Kármen [Juhász, Evelin Kármen (Agrártudomány), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 2 0.1 false false false Author 10064266 /api/author/10064266 Juhász Evelin Kármen (Agrártudomány) Juhász Evelin Kármen true 10064266 true Juhász Evelin Kármen true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093293 /api/authorship/125093293 Novák, Tibor [Novák, Tibor József (földtudományok), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 3 0.1 false false false Author 10036773 /api/author/10036773 Novák Tibor József (földtudományok) Novák Tibor József true 10036773 true Novák Tibor true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093294 /api/authorship/125093294 Kincses, Ida [Kincses, Sándorné (Agrokémia), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 4 0.1 false false false Author 10013008 /api/author/10013008 Kincses Sándorné (Agrokémia) Kincses Sándorné true 10013008 true Kincses Ida true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093295 /api/authorship/125093295 Sándor, Zsolt [Sándor, Zsolt (Talajtan), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 5 0.1 false false false Author 10014073 /api/author/10014073 Sándor Zsolt (Talajtan) Sándor Zsolt true 10014073 true Sándor Zsolt true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093296 /api/authorship/125093296 Tállai, Magdolna [Tállai, Magdolna (Talajtan), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 6 0.1 false false false Author 10027697 /api/author/10027697 Tállai Magdolna (Talajtan) Tállai Magdolna true 10027697 true Tállai Magdolna true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093297 /api/authorship/125093297 Béni, Áron [Béni, Áron (Analitikai kémia), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 7 0.1 false false false Author 10027560 /api/author/10027560 Béni Áron (Analitikai kémia) Béni Áron true 10027560 true Béni Áron true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093298 /api/authorship/125093298 Szabó, Anita ✉ [Szabó, Anita (Agrártudományok), szerző] Talajkémiai és Anyagforgalmi Osztály (HRN ATK / TAKI) 8 0.1 false false true Author 10038385 /api/author/10038385 Szabó Anita (Agrártudományok) Szabó Anita true 10038385 true Szabó Anita true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093299 /api/authorship/125093299 Szarvas, Szabolcs 9 0.1 false false false Szarvas Szabolcs true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 125093300 /api/authorship/125093300 Balla Kovács, Andrea [Balláné Kovács, Andrea (Növénytáplálás), szerző] Agrokémiai és Talajtani Intézet (DE / MÉK) 10 0.1 false true false Author 10012996 /api/author/10012996 Balláné Kovács Andrea (Növénytáplálás) Balláné Kovács Andrea true 10012996 true Balla Kovács Andrea true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PublicationIdentifier 29013152 /api/publicationidentifier/29013152 DOI: 10.3390/nitrogen6010019 PlainSource 6 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and Biological Sciences (miscellaneous) NITROGEN 2504-3129 141 0.49 journal RatingType 10002 /api/ratingtype/10002 sjr sjr true true ClassificationExternal 1101 /api/classificationexternal/1101 Scopus - Agricultural and Biological Sciences (miscellaneous) true 1101 true Q2 FROM_LAST_YEAR true true Reference 64961582 /api/reference/64961582 1. 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Assessment of Spring Oat Nitrogen Supply Based on Plant Sap Nitrate Concentration and SPAD Values. (2025) NITROGEN 2504-3129 6 1<div class="JournalArticle Publication long-list"> <div class="authors"> <img title="Forrásközlemény" style="float: left" src="/frontend/resources/grid/publication-core-icon.png"> <img title="Idézőközlemény" style="float: left" src="/frontend/resources/grid/publication-citation-icon.png"> <div class="autype autype0"> <span class="author-name" mtid="10013222"><a href="/gui2/?type=authors&mode=browse&sel=10013222" target="_blank">Kremper Rita (<span class="authorship-author-name">Erdeiné Kremper Rita</span> <span class="authorAux-mtmt"> Növénytáplálás</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10064266"><a href="/gui2/?type=authors&mode=browse&sel=10064266" target="_blank">Juhász Evelin Kármen (<span class="authorship-author-name">Juhász Evelin Kármen</span> <span class="authorAux-mtmt"> Agrártudomány</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10036773"><a href="/gui2/?type=authors&mode=browse&sel=10036773" target="_blank">Novák Tibor (<span class="authorship-author-name">Novák Tibor József</span> <span class="authorAux-mtmt"> földtudományok</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10013008"><a href="/gui2/?type=authors&mode=browse&sel=10013008" target="_blank">Kincses Ida (<span class="authorship-author-name">Kincses Sándorné</span> <span class="authorAux-mtmt"> Agrokémia</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10014073"><a href="/gui2/?type=authors&mode=browse&sel=10014073" target="_blank">Sándor Zsolt (<span class="authorship-author-name">Sándor Zsolt</span> <span class="authorAux-mtmt"> Talajtan</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10027697"><a href="/gui2/?type=authors&mode=browse&sel=10027697" target="_blank">Tállai Magdolna (<span class="authorship-author-name">Tállai Magdolna</span> <span class="authorAux-mtmt"> Talajtan</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10027560"><a href="/gui2/?type=authors&mode=browse&sel=10027560" target="_blank">Béni Áron (<span class="authorship-author-name">Béni Áron</span> <span class="authorAux-mtmt"> Analitikai kémia</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10038385"><a href="/gui2/?type=authors&mode=browse&sel=10038385" target="_blank">Szabó Anita ✉ (<span class="authorship-author-name">Szabó Anita</span> <span class="authorAux-mtmt"> Agrártudományok</span>) </a> </span> <span class="author-affil"><span title="HUN-REN Agrártudományi Kutatóközpont">HRN ATK</span>/<span title="Talajtani Intézet">TAKI</span>/Talajkémiai és Anyagforgalmi Osztály</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" >Szarvas Szabolcs </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10012996"><a href="/gui2/?type=authors&mode=browse&sel=10012996" target="_blank">Balla Kovács Andrea (<span class="authorship-author-name">Balláné Kovács Andrea</span> <span class="authorAux-mtmt"> Növénytáplálás</span>) </a> </span> <span class="author-affil"><span title="Debreceni Egyetem">DE</span>/<span title="Mezőgazdaság-, Élelmiszertudományi és Környezetgazdálkodási Kar">MÉK</span>/Agrokémiai és Talajtani Intézet</span> </div> </div> <div class="title"><a href="/gui2/?mode=browse&params=publication;35997547" target="_blank">Assessment of Spring Oat Nitrogen Supply Based on Plant Sap Nitrate Concentration and SPAD Values</a></div> <div> <span class="journal-title">NITROGEN</span> <span class="journal-issn">( <a target="_blank" href="https://portal.issn.org/resource/ISSN/2504-3129">2504-3129</a>)</span>: <span class="journal-volume">6</span> <span class="journal-issue">1</span> <span class="page"> Paper 19. 13 p. </span> <span class="year">(2025)</span> </div> <div class="pub-footer"> <span class="language" xmlns="http://www.w3.org/1999/html">Nyelv: Angol | </span> <span class="identifiers"> <span class="id identifier oa_GOLD" title=" Gold "> <a style="color:blue" title="10.3390/nitrogen6010019" target="_blank" href="https://doi.org/10.3390/nitrogen6010019"> DOI </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="388453" target="_blank" href="http://hdl.handle.net/2437/388453"> DEA </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="001482963600001" target="_blank" href="https://www.webofscience.com/wos/woscc/full-record/001482963600001"> WoS </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="105001160297" target="_blank" href="http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-105001160297"> Scopus </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="https://www.mdpi.com/2504-3129/6/1/19" target="_blank" href="https://www.mdpi.com/2504-3129/6/1/19"> Egyéb URL </a> </span> </span> <OnlyViewableByAuthor><div class="ratings"> <div class="journal-subject">Folyóirat szakterülete: Scopus - Agricultural and Biological Sciences (miscellaneous)&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;Q2</div> <div class="journal-subject">Folyóirat szakterülete: Scopus - Earth and Planetary Sciences (miscellaneous)&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;Q2</div> <div class="journal-subject">Folyóirat szakterülete: Scopus - Environmental Science (miscellaneous)&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;Q2</div> </div></OnlyViewableByAuthor> <div class="publication-citation" style="margin-left: 0.5cm;"> <span title="Nyilvános idézőközlemények összesen, említések nélkül" class="citingPub-count">Nyilvános idéző összesen: 3</span> | Független: 3 | Függő: 0 | Nem jelölt: 0 | WoS jelölt: 3 | Scopus jelölt:&nbsp;3 | WoS/Scopus jelölt:&nbsp;3 | DOI jelölt:&nbsp;3 </div> <div class="publication-citation"> <a target="_blank" href="/api/publication?cond=citations.related;eq;35997547&sort=publishedYear,desc&sort=title"> Idézett közlemények száma: 5 </a> </div> <div class="mtid"><span class="long-pub-mtid">Közlemény: 35997547</span> | <span class="status-data status-VALIDATED"> Egyeztetett </span> Forrás Idéző | <span class="type-subtype">Folyóiratcikk ( Szakcikk ) </span> | <span class="pub-category">Tudományos</span> | <span class="publication-sourceOfData">kézi felvitel</span> </div> <div class="funder"> (EFOP-3.6.1-16-2016-00022) Támogató: EFOP </div> <div class="lastModified">Utolsó módosítás: 2025.12.25. 03:35 Szuper Admin (admin) </div> </div></div>