Abstract

) of maize was increased by 55.0%, 10.6%, 14.0%, and 143.9% in seedling, jointing, heading, and mature stages, respectively, while that of cabbage was increased by 26.1% in growing stage. The nutritional quality of maize and cabbage was significantly improved. The contents of reducing sugar, starch, and crude protein in maize were increased by 16.2%, 3.5% and 20.3%. The contents of Vc, amino acid, and reducing sugar in cabbage were increased by 26.3%, 21.0% and 27.8%, separately. In conclusion, 20% nitrogen reduction combined with biochar and rapeseed cake had positive effects on crop growth, yield increase, green retention period, high photosynthetic duration, and agricultural product quality improvement in Guizhou yellow soil maize-cabbage rotation system, the overall effect of which was the best. Nitrogen reduction combined with single organic material overally did not affect crop yield, photosynthetic characteristics, and quality.

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

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 17

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize showed a 55.0% increase in an index whose name is cut off in the abstract, at the seedling stage, under nitrogen reduction combined with organic materials.

Taxon
maizeZea mayse1
Organ / stage
seedlinge1
Treatment
nitrogen reduction combined with organic materialst0
Direction
increasede1
Value
55.0%e1

Not reportedComparatorOutcome

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

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e1

“of maize was increased by 55.0%, 10.6%, 14.0%, and 143.9% in seedling, jointing, heading, and mature stages, respectively, while that of cabbage was increased by 26.1% in growing stage”

✓ located verbatim in the source · abstract, characters 2–186 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize showed a 10.6% increase in the same unnamed index at the jointing stage, under nitrogen reduction combined with organic materials.

Taxon
maizeZea mayse1
Organ / stage
jointinge1
Treatment
nitrogen reduction combined with organic materialst0
Direction
increasede1
Value
10.6%e1

Not reportedComparatorOutcome

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

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e1

“of maize was increased by 55.0%, 10.6%, 14.0%, and 143.9% in seedling, jointing, heading, and mature stages, respectively, while that of cabbage was increased by 26.1% in growing stage”

✓ located verbatim in the source · abstract, characters 2–186 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize showed a 14.0% increase in the same unnamed index at the heading stage, under nitrogen reduction combined with organic materials.

Taxon
maizeZea mayse1
Organ / stage
headinge1
Treatment
nitrogen reduction combined with organic materialst0
Direction
increasede1
Value
14.0%e1

Not reportedComparatorOutcome

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

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e1

“of maize was increased by 55.0%, 10.6%, 14.0%, and 143.9% in seedling, jointing, heading, and mature stages, respectively, while that of cabbage was increased by 26.1% in growing stage”

✓ located verbatim in the source · abstract, characters 2–186 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize showed a 143.9% increase in the same unnamed index at the mature stage, under nitrogen reduction combined with organic materials.

Taxon
maizeZea mayse1
Organ / stage
mature stagese1
Treatment
nitrogen reduction combined with organic materialst0
Direction
increasede1
Value
143.9%e1

Not reportedComparatorOutcome

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

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e1

“of maize was increased by 55.0%, 10.6%, 14.0%, and 143.9% in seedling, jointing, heading, and mature stages, respectively, while that of cabbage was increased by 26.1% in growing stage”

✓ located verbatim in the source · abstract, characters 2–186 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cabbage showed a 26.1% increase in the same unnamed index at the growing stage, under nitrogen reduction combined with organic materials.

Organ / stage
growing stagee1
Treatment
nitrogen reduction combined with organic materialst0
Direction
increasede1
Value
26.1%e1

Not reportedComparatorOutcome

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e1

“of maize was increased by 55.0%, 10.6%, 14.0%, and 143.9% in seedling, jointing, heading, and mature stages, respectively, while that of cabbage was increased by 26.1% in growing stage”

✓ located verbatim in the source · abstract, characters 2–186 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize reducing sugar content increased by 16.2% under nitrogen reduction combined with organic materials.

Taxon
maizeZea mayse3
Treatment
nitrogen reduction combined with organic materialst0
Outcome
contents of reducing sugare3
Direction
increasede3
Value
16.2%e3

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

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e3

“The contents of reducing sugar, starch, and crude protein in maize were increased by 16.2%, 3.5% and 20.3%”

✓ located verbatim in the source · abstract, characters 261–367 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize starch content increased by 3.5% under nitrogen reduction combined with organic materials.

Taxon
maizeZea mayse3
Treatment
nitrogen reduction combined with organic materialst0
Outcome
starche3
Direction
increasede3
Value
3.5%e3

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

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e3

“The contents of reducing sugar, starch, and crude protein in maize were increased by 16.2%, 3.5% and 20.3%”

✓ located verbatim in the source · abstract, characters 261–367 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize crude protein content increased by 20.3% under nitrogen reduction combined with organic materials.

Taxon
maizeZea mayse3
Treatment
nitrogen reduction combined with organic materialst0
Outcome
crude proteine3
Direction
increasede3
Value
20.3%e3

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

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e3

“The contents of reducing sugar, starch, and crude protein in maize were increased by 16.2%, 3.5% and 20.3%”

✓ located verbatim in the source · abstract, characters 261–367 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cabbage Vc content increased by 26.3% under nitrogen reduction combined with organic materials.

Treatment
nitrogen reduction combined with organic materialst0
Outcome
contents of Vce4
Direction
increasede4
Value
26.3%e4

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e4

“The contents of Vc, amino acid, and reducing sugar in cabbage were increased by 26.3%, 21.0% and 27.8%, separately”

✓ located verbatim in the source · abstract, characters 369–483 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cabbage amino acid content increased by 21.0% under nitrogen reduction combined with organic materials.

Treatment
nitrogen reduction combined with organic materialst0
Outcome
amino acide4
Direction
increasede4
Value
21.0%e4

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e4

“The contents of Vc, amino acid, and reducing sugar in cabbage were increased by 26.3%, 21.0% and 27.8%, separately”

✓ located verbatim in the source · abstract, characters 369–483 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cabbage reducing sugar content increased by 27.8% under nitrogen reduction combined with organic materials.

Treatment
nitrogen reduction combined with organic materialst0
Outcome
reducing sugare4
Direction
increasede4
Value
27.8%e4

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e4

“The contents of Vc, amino acid, and reducing sugar in cabbage were increased by 26.3%, 21.0% and 27.8%, separately”

✓ located verbatim in the source · abstract, characters 369–483 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutritional quality of maize and cabbage was significantly improved under nitrogen reduction combined with organic materials.

Treatment
nitrogen reduction combined with organic materialst0
Outcome
nutritional qualitye2
Direction
improvede2

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e2

“The nutritional quality of maize and cabbage was significantly improved”

✓ located verbatim in the source · abstract, characters 188–259 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 20% nitrogen reduction with biochar and rapeseed cake had positive effects on crop growth and yield increase in the Guizhou maize-cabbage rotation.

Taxon
maize-cabbagee5
Treatment
20% nitrogen reduction combined with biochar and rapeseed cakee5
Outcome
crop growth, yield increasee5
Direction
positive effectse5
Setting
Guizhou yellow soile5

Not reportedComparator

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e5

“20% nitrogen reduction combined with biochar and rapeseed cake had positive effects on crop growth, yield increase, green retention period, high photosynthetic duration, and agricultural product quality improvement in Guizhou yellow soil maize-cabbage rotation system, the overall effect of which was the best”

✓ located verbatim in the source · abstract, characters 500–809 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 20% nitrogen reduction with biochar and rapeseed cake had positive effects on green retention period and high photosynthetic duration in the Guizhou maize-cabbage rotation.

Taxon
maize-cabbagee5
Treatment
20% nitrogen reduction combined with biochar and rapeseed cakee5
Outcome
green retention period, high photosynthetic duratione5
Direction
positive effectse5
Setting
Guizhou yellow soile5

Not reportedComparator

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e5

“20% nitrogen reduction combined with biochar and rapeseed cake had positive effects on crop growth, yield increase, green retention period, high photosynthetic duration, and agricultural product quality improvement in Guizhou yellow soil maize-cabbage rotation system, the overall effect of which was the best”

✓ located verbatim in the source · abstract, characters 500–809 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 20% nitrogen reduction with biochar and rapeseed cake had positive effects on agricultural product quality in the Guizhou maize-cabbage rotation.

Taxon
maize-cabbagee5
Treatment
20% nitrogen reduction combined with biochar and rapeseed cakee5
Outcome
agricultural product quality improvemente5
Direction
positive effectse5
Setting
Guizhou yellow soile5

Not reportedComparator

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e5

“20% nitrogen reduction combined with biochar and rapeseed cake had positive effects on crop growth, yield increase, green retention period, high photosynthetic duration, and agricultural product quality improvement in Guizhou yellow soil maize-cabbage rotation system, the overall effect of which was the best”

✓ located verbatim in the source · abstract, characters 500–809 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Among the treatments, 20% nitrogen reduction with biochar and rapeseed cake gave the best overall effect in the maize-cabbage rotation.

Taxon
maize-cabbagee5
Treatment
20% nitrogen reduction combined with biochar and rapeseed cakee5
Outcome
overall effecte5
Direction
the beste5

Not reportedComparator

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e5

“20% nitrogen reduction combined with biochar and rapeseed cake had positive effects on crop growth, yield increase, green retention period, high photosynthetic duration, and agricultural product quality improvement in Guizhou yellow soil maize-cabbage rotation system, the overall effect of which was the best”

✓ located verbatim in the source · abstract, characters 500–809 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen reduction combined with a single organic material did not affect crop yield, photosynthetic characteristics or quality in the maize-cabbage rotation.

Taxon
maize-cabbagee5
Treatment
Nitrogen reduction combined with single organic materiale6
Outcome
crop yield, photosynthetic characteristics, and qualitye6
Direction
did not affecte6

Not reportedComparator

Verbatim

t0

“Effects of nitrogen reduction combined with organic materials on crop yield, photosynthetic characteristics, and product quality of corn-cabbage rotation system”

✓ located verbatim in the source · title, characters 1–161 · show in text ↑
e5

“20% nitrogen reduction combined with biochar and rapeseed cake had positive effects on crop growth, yield increase, green retention period, high photosynthetic duration, and agricultural product quality improvement in Guizhou yellow soil maize-cabbage rotation system, the overall effect of which was the best”

✓ located verbatim in the source · abstract, characters 500–809 · show in text ↑
e6

“Nitrogen reduction combined with single organic material overally did not affect crop yield, photosynthetic characteristics, and quality”

✓ located verbatim in the source · abstract, characters 811–947 · show in text ↑

nitrogen · quality: grain · Brassica oleracea (wild cabbage)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

4 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

3 papers more in this group

See all 7 papers →

nitrogen · quality: sugar starch · Brassica oleracea (wild cabbage)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

5 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

4 papers more in this group

See all 8 papers →

nitrogen · molecular: metabolites · Brassica oleracea (wild cabbage)Positive and negative results

22 papers: 19 positive, 3 negative or no effect

18 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

18 papers more in this group

See all 22 papers →

nitrogen · quality: sugar starch · Zea mays (maize)Positive and negative results

43 papers: 33 positive, 10 negative or no effect

32 papers in the same direction as this paper · 10 in the opposite direction

  1. no effect
  2. negative
  3. negative

39 papers more in this group

See all 43 papers →

nitrogen · quality: grain · Zea mays (maize)Positive and negative results

72 papers: 59 positive, 13 negative or no effect

58 papers in the same direction as this paper · 11 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

68 papers more in this group

See all 72 papers →

nitrogen · quality: protein · Zea mays (maize)Positive and negative results

181 papers: 164 positive, 17 negative or no effect

163 papers in the same direction as this paper · 14 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

177 papers more in this group

See all 181 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.