Paper · 2010 · Polish Journal of Environmental Studies

Effects of Differentiated Levels of Nitrogen Fertilization and the Method of Magnesium Application on the Utilization of Nitrogen by Two Different Maize Cultivars for Grain

Piotr Szulc

7
claims
13
verbatim quotes
22
citations
2
research areas
—
Not open access

Abstract

A field experiment was carried out at the Didactic and Experimental Farm in Swadzim near Poznan in 2004-07. Two maize cultivars were studied, six nitrogen doses and magnesium doses. The effects of the mentioned factors exerted on the utilization of nitrogen from the applied mineral fertilizer and on the nitrogen harvest index were studied. The impact of nitrogen fertilization on the mineral intake of traditional maize cultivars has been widely presented in national and foreign literature. However, there are a limited number of papers comparing the volume of mineral intake and use between the traditional and the “stay-green”-types of cultivars. Moreover, according to the “minimum” principle, the component most deficient in the soil determines harvest volume. Magnesium is obviously one of the ingredients whose deficiency has been found in most of the soils in Poland, and this justifies research focusing on improving the precision of the technology concerning “stay-green”-type maize cultivar fertilization with nitrogen and magnesium, including the environmental aspects. The hybrid LG 2244 “stay-green”-type utilized to a higher degree nitrogen from the applied mineral fertilizer and showed a higher nitrogen harvest index, as compared with a traditional hybrid cultivar: Anjou 258. Increasing levels of nitrogen fertilization decreased N utilization by the plants and the nitrogen harvest index. The application of 15 kg Mg·ha -1 both broadcast and in rows caused increased nitrogen utilization from the mineral fertilizer, which was distinctly shown by the smaller amount of Nmin in the soil after the maize harvest.

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Claims 7

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The stay-green hybrid utilized fertilizer nitrogen more efficiently than Anjou 258.

Taxon
MaizeZea mayst0
Material
LG 2244e0
Outcome
nitrogen from the applied mineral fertilizere0
Direction
highere0
Comparator
Anjou 258e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The hybrid LG 2244 “stay-green”-type utilized to a higher degree nitrogen from the applied mineral fertilizer and showed a higher nitrogen harvest index, as compared with a traditional hybrid cultivar: Anjou 258”

✓ located verbatim in the source · abstract, characters 1084–1295 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 147–152 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The stay-green hybrid had higher nitrogen harvest index than Anjou 258.

Taxon
MaizeZea mayst0
Material
LG 2244e0
Outcome
nitrogen harvest indexe0
Direction
highere0
Comparator
Anjou 258e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The hybrid LG 2244 “stay-green”-type utilized to a higher degree nitrogen from the applied mineral fertilizer and showed a higher nitrogen harvest index, as compared with a traditional hybrid cultivar: Anjou 258”

✓ located verbatim in the source · abstract, characters 1084–1295 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 147–152 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing nitrogen fertilization decreased plant nitrogen utilization.

Taxon
MaizeZea mayst0
Treatment
Increasing levels of nitrogen fertilizatione0
Outcome
N utilizatione0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Increasing levels of nitrogen fertilization decreased N utilization by the plants and the nitrogen harvest index”

✓ located verbatim in the source · abstract, characters 1297–1409 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 147–152 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing nitrogen fertilization decreased nitrogen harvest index.

Taxon
MaizeZea mayst0
Treatment
Increasing levels of nitrogen fertilizatione0
Outcome
nitrogen harvest indexe0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Increasing levels of nitrogen fertilization decreased N utilization by the plants and the nitrogen harvest index”

✓ located verbatim in the source · abstract, characters 1297–1409 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 147–152 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Broadcast magnesium increased fertilizer nitrogen utilization.

Taxon
MaizeZea mayst0
Treatment
15 kg Mg·ha -1 both broadcaste0
Outcome
nitrogen utilization from the mineral fertilizere0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The application of 15 kg Mg·ha -1 both broadcast and in rows caused increased nitrogen utilization from the mineral fertilizer”

✓ located verbatim in the source · abstract, characters 1411–1537 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 147–152 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In-row magnesium increased fertilizer nitrogen utilization.

Taxon
MaizeZea mayst0
Treatment
15 kg Mg·ha -1 both broadcast and in rowse0
Outcome
nitrogen utilization from the mineral fertilizere0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The application of 15 kg Mg·ha -1 both broadcast and in rows caused increased nitrogen utilization from the mineral fertilizer”

✓ located verbatim in the source · abstract, characters 1411–1537 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 147–152 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Magnesium treatment left less soil Nmin after maize harvest.

Taxon
maizeZea mayse0
Outcome
Nmin in the soile0
Direction
smallere0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“which was distinctly shown by the smaller amount of Nmin in the soil after the maize harvest”

✓ located verbatim in the source · abstract, characters 1539–1631 · show in text ↑

fertilization · yield · Zea mays (maize)Positive and negative results

3,908 papers: 3,485 positive, 423 negative or no effect

422 papers in the same direction as this paper · 3,485 in the opposite direction

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