Paper · 1989 · HortScience

Snap Bean Plant Responses to Sources and Rates of Nitrogen and Potassium Fertilizers

Nathan H. Peck; George E. MacDonald; Audrey V. Gardner

6
claims
12
verbatim quotes
10
citations
1
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract The objective of this study was to determine the responses of ‘Bush Blue Lake-47’ snap bean plants [Phaseolus vulgaris (L.) var. humilis] to urea, (NH 4 ) 2 SO 4 , NH 4 NO 3 , and Ca(NO 3 ) 2 sources of N fertilizers at rates of 0, 4, 8, or 12 g of N/m 2 and to KCl and K 2 SO 4 fertilizers at 5 g K/m 2 . Dry weight of the plants was determined at the seedling, bloom, and harvest stages. Blades of recently fully expanded leaves at the bloom stage were analyzed for total N, NO 3 -N, Cl, S, B, P, K, Na, Ca, Mg, Zn, Mn, Fe, and Cu. Snap bean plants grown with (NH 4 ) 2 SO 4 had the highest dry weight per plant and the highest yield of pods, followed by plants grown with NH 4 NO 3 . Plants grown with Ca(NO 3 ) 2 or urea had the lowest dry weight per plant and the lowest yield of pods, especially at the highest rate of N fertilizers.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

(NH 4 ) 2 SO 4 produced highest snap bean dry weight per plant.

Taxon
snap bean plantse0
Treatment
(NH 4 ) 2 SO 4e1
Outcome
dry weight per plante1
Direction
higheste1

Not reportedComparator

Verbatim

e0

“snap bean plants [Phaseolus vulgaris (L.) var. humilis]”

✓ located verbatim in the source · abstract, characters 91–146 · show in text ↑
e1

“Snap bean plants grown with (NH 4 ) 2 SO 4 had the highest dry weight per plant and the highest yield of pods”

✓ located verbatim in the source · abstract, characters 543–652 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

(NH 4 ) 2 SO 4 produced highest snap bean yield of pods.

Taxon
snap bean plantse0
Treatment
(NH 4 ) 2 SO 4e1
Outcome
yield of podse1
Direction
higheste1

Not reportedComparator

Verbatim

e0

“snap bean plants [Phaseolus vulgaris (L.) var. humilis]”

✓ located verbatim in the source · abstract, characters 91–146 · show in text ↑
e1

“Snap bean plants grown with (NH 4 ) 2 SO 4 had the highest dry weight per plant and the highest yield of pods”

✓ located verbatim in the source · abstract, characters 543–652 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ca(NO 3 ) 2 produced lowest snap bean dry weight per plant.

Taxon
snap bean plantse0
Treatment
Ca(NO 3 ) 2e1
Outcome
dry weight per plante1
Direction
loweste1

Not reportedComparator

Verbatim

e0

“snap bean plants [Phaseolus vulgaris (L.) var. humilis]”

✓ located verbatim in the source · abstract, characters 91–146 · show in text ↑
e1

“Plants grown with Ca(NO 3 ) 2 or urea had the lowest dry weight per plant and the lowest yield of pods”

✓ located verbatim in the source · abstract, characters 696–798 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ca(NO 3 ) 2 produced lowest snap bean yield of pods.

Taxon
snap bean plantse0
Treatment
Ca(NO 3 ) 2e1
Outcome
yield of podse1
Direction
loweste1

Not reportedComparator

Verbatim

e0

“snap bean plants [Phaseolus vulgaris (L.) var. humilis]”

✓ located verbatim in the source · abstract, characters 91–146 · show in text ↑
e1

“Plants grown with Ca(NO 3 ) 2 or urea had the lowest dry weight per plant and the lowest yield of pods”

✓ located verbatim in the source · abstract, characters 696–798 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

urea produced lowest snap bean dry weight per plant.

Taxon
snap bean plantse0
Treatment
ureae1
Outcome
dry weight per plante1
Direction
loweste1

Not reportedComparator

Verbatim

e0

“snap bean plants [Phaseolus vulgaris (L.) var. humilis]”

✓ located verbatim in the source · abstract, characters 91–146 · show in text ↑
e1

“Plants grown with Ca(NO 3 ) 2 or urea had the lowest dry weight per plant and the lowest yield of pods”

✓ located verbatim in the source · abstract, characters 696–798 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

urea produced lowest snap bean yield of pods.

Taxon
snap bean plantse0
Treatment
ureae1
Outcome
yield of podse1
Direction
loweste1

Not reportedComparator

Verbatim

e0

“snap bean plants [Phaseolus vulgaris (L.) var. humilis]”

✓ located verbatim in the source · abstract, characters 91–146 · show in text ↑
e1

“Plants grown with Ca(NO 3 ) 2 or urea had the lowest dry weight per plant and the lowest yield of pods”

✓ located verbatim in the source · abstract, characters 696–798 · show in text ↑

calcium atom · yield · Phaseolus vulgaris (common bean)Results differ

12 papers: 7 positive, 5 negative or no effect

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

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

calcium atom · growth · Phaseolus vulgaris (common bean)Positive and negative results

11 papers: 9 positive, 2 negative or no effect

1 paper in the same direction as this paper · 9 in the opposite direction

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

nitrogen · growth · Phaseolus vulgaris (common bean)Positive and negative results

60 papers: 44 positive, 16 negative or no effect

15 papers in the same direction as this paper · 44 in the opposite direction

  1. positive
  2. positive
  3. positive

56 papers more in this group

See all 60 papers →

nitrogen · yield · Phaseolus vulgaris (common bean)Positive and negative results

156 papers: 131 positive, 25 negative or no effect

24 papers in the same direction as this paper · 131 in the opposite direction

  1. positive
  2. positive
  3. positive

152 papers more in this group

See all 156 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.