Paper · 1994 · HortScience

111 EFFECTS OF N SOURCE, APPLICATION FREQUENCY, AND SOIL NITRATE CONCENTRATION ON PEPPER YIELD AND QUALITY

K.M. Batal

10
claims
20
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season. Number and weight of marketable grades for the 1st and 3rd harvests were improved by increasing soil N from 5 to 30 ppm. In the final (4th) harvest, marketable yield was highest for applications maintaining soil N of 25 ppm. Earliness was enhanced by N sources with Ca(NO 3 ) 2 producing the earliest yield followed by NaNO 3 and NH 4 NO 3 . Total marketable yield produced by Ca(NO 3 ) 2 or NaKNO 3 was 3 t/ha higher than by NH 4 NO 3 applications. High marketable quality was maintained with Ca(NO 3 ) 2 and NaNO 3 treatments. The highest blossom-end rot (BER) incidence was associated with NH4NO3 applications. But the N source effect on BER was strongly influenced by soil nitrate levels. At 10-20 ppm soil N, leaf Ca decreased during the 8 to 12 week period, but at higher soil N, leaf Ca remained unchanged, indicating a constant Ca uptake during the critical growth period.

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 10

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Number and weight of marketable grades for the first and third harvests improved when soil N was increased from 5 to 30 ppm.

Taxon
bell peppere0
Treatment
increasing soil N from 5 to 30 ppme1
Outcome
Number and weight of marketable gradese1
Direction
improvede1
Qualifier
for the 1st and 3rd harvestse1

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e1

“Number and weight of marketable grades for the 1st and 3rd harvests were improved by increasing soil N from 5 to 30 ppm”

✓ located verbatim in the source · abstract, characters 169–288 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

In the final harvest, marketable yield was highest for applications maintaining soil N at 25 ppm.

Taxon
bell peppere0
Treatment
applications maintaining soil N of 25 ppme2
Outcome
marketable yielde2
Direction
higheste2
Qualifier
In the final (4th) harveste2

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e2

“In the final (4th) harvest, marketable yield was highest for applications maintaining soil N of 25 ppm”

✓ located verbatim in the source · abstract, characters 290–392 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Earliness of bell pepper was enhanced by N sources.

Taxon
bell peppere0
Treatment
N sourcese3
Outcome
Earlinesse3
Direction
enhancede3

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e3

“Earliness was enhanced by N sources with Ca(NO 3 ) 2 producing the earliest yield followed by NaNO 3 and NH 4 NO 3”

✓ located verbatim in the source · abstract, characters 394–508 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ca(NO3)2 gave the earliest yield, followed by NaNO3 and NH4NO3.

Taxon
bell peppere0
Treatment
Ca(NO 3 ) 2e3
Outcome
earliest yielde3
Direction
earliest yielde3
Comparator
NaNO 3 and NH 4 NO 3e3

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e3

“Earliness was enhanced by N sources with Ca(NO 3 ) 2 producing the earliest yield followed by NaNO 3 and NH 4 NO 3”

✓ located verbatim in the source · abstract, characters 394–508 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Total marketable yield from Ca(NO3)2 or NaKNO3 was 3 t/ha higher than from NH4NO3 applications.

Taxon
bell peppere0
Treatment
Ca(NO 3 ) 2 or NaKNO 3e4
Outcome
Total marketable yielde4
Direction
highere4
Value
3 t/hae4
Comparator
NH 4 NO 3 applicationse4

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e4

“Total marketable yield produced by Ca(NO 3 ) 2 or NaKNO 3 was 3 t/ha higher than by NH 4 NO 3 applications”

✓ located verbatim in the source · abstract, characters 511–617 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

High marketable quality was maintained with Ca(NO3)2 and NaNO3 treatments.

Taxon
bell peppere0
Treatment
Ca(NO 3 ) 2 and NaNO 3e5
Outcome
High marketable qualitye5
Direction
maintainede5

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e5

“High marketable quality was maintained with Ca(NO 3 ) 2 and NaNO 3 treatments”

✓ located verbatim in the source · abstract, characters 619–696 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The highest blossom-end rot incidence was associated with NH4NO3 applications.

Taxon
bell peppere0
Treatment
NH4NO3 applicationse6
Outcome
blossom-end rot (BER) incidencee6
Direction
higheste6

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e6

“The highest blossom-end rot (BER) incidence was associated with NH4NO3 applications”

✓ located verbatim in the source · abstract, characters 698–781 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The effect of N source on blossom-end rot was strongly influenced by soil nitrate levels.

Taxon
bell peppere0
Treatment
soil nitrate levelse6
Outcome
N source effect on BERe6

Not reportedDirection

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e6

“The highest blossom-end rot (BER) incidence was associated with NH4NO3 applications. But the N source effect on BER was strongly influenced by soil nitrate levels”

✓ located verbatim in the source · abstract, characters 698–860 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

At 10-20 ppm soil N, leaf calcium decreased during the 8 to 12 week period.

Taxon
bell peppere0
Organ / stage
leafe7
Treatment
10-20 ppm soil Ne7
Outcome
leaf Cae7
Direction
decreasede7
Qualifier
during the 8 to 12 week periode7

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e7

“At 10-20 ppm soil N, leaf Ca decreased during the 8 to 12 week period, but at higher soil N, leaf Ca remained unchanged”

✓ located verbatim in the source · abstract, characters 862–981 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

At higher soil N, leaf calcium remained unchanged.

Taxon
bell peppere0
Organ / stage
leafe7
Treatment
higher soil Ne7
Outcome
leaf Cae7
Direction
remained unchangede7

Verbatim

e0

“Various applications of N fertilizer formulations to bell pepper plots were made to affect soil nitrate-N concentrations from 5 to 30 ppm throughout the growing season”

✓ located verbatim in the source · abstract, characters 0–167 · show in text ↑
e7

“At 10-20 ppm soil N, leaf Ca decreased during the 8 to 12 week period, but at higher soil N, leaf Ca remained unchanged”

✓ located verbatim in the source · abstract, characters 862–981 · show in text ↑

calcium atom · quality: postharvest · Capsicum annuum (sweet pepper)Results differ

10 papers: 8 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

6 papers more in this group

See all 10 papers →

calcium atom · yield · Capsicum annuum (sweet pepper)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

8 papers more in this group

See all 12 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.