Paper · 2009

Study of Nitrogen Fertilization on Summer Maize Based on Soil Nitrate Nitrogen Test

Hongzhang Wang

6
claims
14
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

With the summer maize as material and by field experiment,the nitrogen real-time monitoring technology was constructed based on the soil nitrate nitrogen test and nitrogen balance to increase the maize yield and the nitrogen use efficiency.The research indicated that the optimum application of nitrogen fertilizer was 183~280 kg/hm2 with the average of 220 kg/hm2,which could save 45.3% nitrogen fertilizer,but increase the maize yield by 4.1%.the verification test showed that the yield of the optimized nitrogen fertilization treatment was the highest.As a result,the application of the optimized nitrogen fertilization determined in this experiment was reasonable,which could decrease the application rate of nitrogen fertilizer and loss of nitrogen,then increased the nitrogen use efficiency.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 6

Observationobservedoriginal resultmeasured

Claim · model-written summary

The optimum nitrogen fertilizer application for summer maize was 183~280 kg/hm2, averaging 220 kg/hm2.

Taxon
summer maizeZea mayse0
Outcome
optimum application of nitrogen fertilizere1
Value
183~280 kg/hm2 with the average of 220 kg/hm2e1
Setting
field experimente0

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

“With the summer maize as material and by field experiment”

✓ located verbatim in the source · abstract, characters 0–57 · show in text ↑
e1

“The research indicated that the optimum application of nitrogen fertilizer was 183~280 kg/hm2 with the average of 220 kg/hm2”

✓ located verbatim in the source · abstract, characters 240–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The optimized nitrogen fertilization could save 45.3% nitrogen fertilizer in summer maize.

Taxon
summer maizeZea mayse0
Treatment
optimum application of nitrogen fertilizere1
Outcome
nitrogen fertilizere2
Direction
savee2
Value
45.3%e2

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

“With the summer maize as material and by field experiment”

✓ located verbatim in the source · abstract, characters 0–57 · show in text ↑
e1

“The research indicated that the optimum application of nitrogen fertilizer was 183~280 kg/hm2 with the average of 220 kg/hm2”

✓ located verbatim in the source · abstract, characters 240–364 · show in text ↑
e2

“which could save 45.3% nitrogen fertilizer,but increase the maize yield by 4.1%”

✓ located verbatim in the source · abstract, characters 365–444 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The optimized nitrogen fertilization increased maize yield by 4.1%.

Taxon
summer maizeZea mayse0
Treatment
optimum application of nitrogen fertilizere1
Outcome
maize yielde2
Direction
increasee2
Value
4.1%e2

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

“With the summer maize as material and by field experiment”

✓ located verbatim in the source · abstract, characters 0–57 · show in text ↑
e1

“The research indicated that the optimum application of nitrogen fertilizer was 183~280 kg/hm2 with the average of 220 kg/hm2”

✓ located verbatim in the source · abstract, characters 240–364 · show in text ↑
e2

“which could save 45.3% nitrogen fertilizer,but increase the maize yield by 4.1%”

✓ located verbatim in the source · abstract, characters 365–444 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Yield of the optimized nitrogen fertilization treatment was the highest in the verification test.

Taxon
summer maizeZea mayse0
Treatment
optimized nitrogen fertilizatione3
Outcome
yielde3
Direction
higheste3

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

“With the summer maize as material and by field experiment”

✓ located verbatim in the source · abstract, characters 0–57 · show in text ↑
e3

“the verification test showed that the yield of the optimized nitrogen fertilization treatment was the highest”

✓ located verbatim in the source · abstract, characters 445–554 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Optimized nitrogen fertilization could decrease the application rate of nitrogen fertilizer and the loss of nitrogen in summer maize.

Taxon
summer maizeZea mayse0
Treatment
nitrogen fertilizere4
Outcome
application rate of nitrogen fertilizer and loss of nitrogene4
Direction
decreasee4

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

“With the summer maize as material and by field experiment”

✓ located verbatim in the source · abstract, characters 0–57 · show in text ↑
e4

“could decrease the application rate of nitrogen fertilizer and loss of nitrogen,then increased the nitrogen use efficiency”

✓ located verbatim in the source · abstract, characters 674–796 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Optimized nitrogen fertilization could increase nitrogen use efficiency of summer maize.

Taxon
summer maizeZea mayse0
Treatment
nitrogen fertilizere4
Outcome
nitrogen use efficiencye4
Direction
increasede4

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

“With the summer maize as material and by field experiment”

✓ located verbatim in the source · abstract, characters 0–57 · show in text ↑
e4

“could decrease the application rate of nitrogen fertilizer and loss of nitrogen,then increased the nitrogen use efficiency”

✓ located verbatim in the source · abstract, characters 674–796 · show in text ↑

fertilization · nutrient: efficiency · Zea mays (maize)Results differ

189 papers: 174 positive, 15 negative or no effect

173 papers in the same direction as this paper · 12 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

185 papers more in this group

See all 189 papers →

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

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

3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

3,904 papers more in this group

See all 3,908 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.