2020
DOI: 10.3390/agronomy10091392
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Quantification of Biologically Fixed Nitrogen by White Lupin (Lupins albus L.) and Its Subsequent Uptake by Winter Wheat Using the 15N Isotope Dilution Method

Abstract: A field experiment was carried out in 2016–2018 in a white lupin (Lupinus albus L.)-winter wheat (Triticum aestivum cv. ‘Bogatka’) crop rotation. The aim of this study was to determine the amount of nitrogen (N) that was biologically fixed by the white lupin crop in the first year of the rotation and to estimate how much of this N was then taken up from the lupin residues by winter wheat in the second and third years of the rotation. Biologically fixed N was determined by the isotope-dilution method (ID15N) by… Show more

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Cited by 12 publications
(11 citation statements)
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“…Cover crops are necessary to maintain the richness of rhizobacteria, which intervene in the assimilation of nutrients and in plant growth [53,54]. The cover crop acts as a protective element of the soils, which reduces evapotranspiration, minimizing crop irrigation [55,56], and not being necessary the breakages that destroy the soil mycorrhizae that allow the nitrogen entry into nodular systems [57][58][59][60][61]. Nitrogen fixation by mycorrhizal fungi is essential for sustainable cultivation to be productive [62][63][64]: for this, it is essential to know certain edaphic parameters, since within the Fabaceae family, there are species indifferent edaphic to pH, being able to be acidophilic exclusively or basophilic.…”
Section: Discussionmentioning
confidence: 99%
“…Cover crops are necessary to maintain the richness of rhizobacteria, which intervene in the assimilation of nutrients and in plant growth [53,54]. The cover crop acts as a protective element of the soils, which reduces evapotranspiration, minimizing crop irrigation [55,56], and not being necessary the breakages that destroy the soil mycorrhizae that allow the nitrogen entry into nodular systems [57][58][59][60][61]. Nitrogen fixation by mycorrhizal fungi is essential for sustainable cultivation to be productive [62][63][64]: for this, it is essential to know certain edaphic parameters, since within the Fabaceae family, there are species indifferent edaphic to pH, being able to be acidophilic exclusively or basophilic.…”
Section: Discussionmentioning
confidence: 99%
“…Biological N reduction was calculated using the following formulas provided by Kalembasa et al [17] including:…”
Section: Calculationsmentioning
confidence: 99%
“…In comparison with other grain legumes, lupins fix high amounts of nitrogen; some species fix up to 527 kg N · ha −1 [ 5 ]. However, this largely depends on bioclimatic and soil conditions [ 45 , 46 , 47 ]. Nevertheless, little research has focused on the possible losses of nitrogen fixation caused by weevil larvae damage to root nodules.…”
Section: Biology and Ecologymentioning
confidence: 99%