Abstract
Snap bean (Phaseolus vulgaris L.) ranks first among vegetables produced for the export market in Kenya. All Snap beans were planted in different treatments containing various levels of Nitrogen of Calcium Ammonium Nitrate (CAN) Treatments T1- T2 had IgN,1.5gN, 2.0gN, 2.5gN, 5gN, 10gN and 15gN respectively while T8 was inoculated with Rhizobium. The control T9 lacked nitrogen. All were supplied with equal amounts of phosphorus fertilizer (5.5g) single super phosphate per plant. The effects of different levels of nitrogen were determined on the vegetative growth, seed and pod production and nodulation. It was found that an increase in nitrogen application increased vegetative growth, dry matter production, seed and pod production. Increased Nitrogen application had a negative effect on nodulation. T1 which had the least level of nitrogen application managed to modulate moderately and also had high yields and dry matter production as compared to the control. However, inoculation alone had best nodulation but seed production, vegetative growth and dry matter production was low compared to the treatment with least nitrogen indicating that the nitrogen fixed through nodules was not enough for maximum production. From this study, it can be recommended that 22kg N/ha would be economical for snap beans production.
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 13
Claim · model-written summary
Increasing nitrogen application increased vegetative growth in snap beans.
Verbatim
e0“an increase in nitrogen application increased vegetative growth, dry matter production, seed and pod production.”
e1“Snap bean (Phaseolus vulgaris L.)”
e2“The control T9 lacked nitrogen.”
Claim · model-written summary
Increasing nitrogen application increased dry matter production in snap beans.
Verbatim
e0“an increase in nitrogen application increased vegetative growth, dry matter production, seed and pod production.”
e1“Snap bean (Phaseolus vulgaris L.)”
e2“The control T9 lacked nitrogen.”
Claim · model-written summary
Increasing nitrogen application increased seed in snap beans.
Verbatim
e0“an increase in nitrogen application increased vegetative growth, dry matter production, seed and pod production.”
e1“Snap bean (Phaseolus vulgaris L.)”
e2“The control T9 lacked nitrogen.”
Claim · model-written summary
Increasing nitrogen application increased pod production in snap beans.
Verbatim
e0“an increase in nitrogen application increased vegetative growth, dry matter production, seed and pod production.”
e1“Snap bean (Phaseolus vulgaris L.)”
e2“The control T9 lacked nitrogen.”
Claim · model-written summary
Increasing nitrogen application reduced nodulation.
Verbatim
e0“Increased Nitrogen application had a negative effect on nodulation.”
e1“Snap bean (Phaseolus vulgaris L.)”
e2“The control T9 lacked nitrogen.”
Claim · model-written summary
The lowest nitrogen treatment had higher yields than the control.
Verbatim
e0“T1 which had the least level of nitrogen application managed to modulate moderately and also had high yields and dry matter production as compared to the control.”
e1“Snap bean (Phaseolus vulgaris L.)”
Claim · model-written summary
The lowest nitrogen treatment had higher dry matter production than the control.
Verbatim
e0“T1 which had the least level of nitrogen application managed to modulate moderately and also had high yields and dry matter production as compared to the control.”
e1“Snap bean (Phaseolus vulgaris L.)”
Claim · model-written summary
The lowest nitrogen treatment had moderate nodulation.
Not reportedDirection
Verbatim
e0“T1 which had the least level of nitrogen application managed to modulate moderately”
e1“Snap bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Rhizobium inoculation alone gave the best nodulation.
- Taxon
- Snap beane2
- Treatment
- inoculated with Rhizobiume1
- Outcome
- nodulatione0
- Direction
- beste0
- Comparator
- treatment with least nitrogene3
RhizobiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation alone had best nodulation”
e1“T8 was inoculated with Rhizobium.”
e2“Snap bean (Phaseolus vulgaris L.)”
e3“compared to the treatment with least nitrogen”
Claim · model-written summary
Rhizobium inoculation alone gave lower seed production than the lowest nitrogen treatment.
- Taxon
- Snap beane3
- Treatment
- inoculated with Rhizobiume2
- Outcome
- seed productione0
- Direction
- lowe0
- Comparator
- treatment with least nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed production, vegetative growth and dry matter production was low compared to the treatment with least nitrogen”
e1“inoculation alone had best nodulation”
e2“T8 was inoculated with Rhizobium.”
e3“Snap bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Rhizobium inoculation alone gave lower vegetative growth than the lowest nitrogen treatment.
- Taxon
- Snap beane3
- Treatment
- inoculated with Rhizobiume2
- Outcome
- vegetative growthe0
- Direction
- lowe0
- Comparator
- treatment with least nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed production, vegetative growth and dry matter production was low compared to the treatment with least nitrogen”
e1“inoculation alone had best nodulation”
e2“T8 was inoculated with Rhizobium.”
e3“Snap bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Rhizobium inoculation alone gave lower dry matter production than the lowest nitrogen treatment.
- Taxon
- Snap beane3
- Treatment
- inoculated with Rhizobiume2
- Outcome
- dry matter productione0
- Direction
- lowe0
- Comparator
- treatment with least nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed production, vegetative growth and dry matter production was low compared to the treatment with least nitrogen”
e1“inoculation alone had best nodulation”
e2“T8 was inoculated with Rhizobium.”
e3“Snap bean (Phaseolus vulgaris L.)”
Claim · model-written summary
The authors recommend 22kg N/ha as economical for snap bean production.
Verbatim
e0“it can be recommended that 22kg N/ha would be economical for snap beans production.”
The same questions in other papers
Rhizobium · symbiosis · Phaseolus vulgaris (common bean)Positive and negative results
15 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
14 papers more in this group
See all 18 papers →Rhizobium · growth · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 22 in the opposite direction
- positive
- positive
- positive
20 papers more in this group
See all 24 papers →Rhizobium · yield · Phaseolus vulgaris (common bean)Positive and negative results
3 papers in the same direction as this paper · 34 in the opposite direction
- positive
- positive
- positive
34 papers more in this group
See all 38 papers →nitrogen · symbiosis · Phaseolus vulgaris (common bean)Results differ
21 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
27 papers more in this group
See all 31 papers →inoculation · growth · Phaseolus vulgaris (common bean)Results differ
19 papers in the same direction as this paper · 106 in the opposite direction
- positive
- positive
- positive
122 papers more in this group
See all 126 papers →nitrogen · growth · Phaseolus vulgaris (common bean)Positive and negative results
43 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- negative
56 papers more in this group
See all 60 papers →inoculation · symbiosis · Phaseolus vulgaris (common bean)Positive and negative results
82 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- no effect
- negative
86 papers more in this group
See all 90 papers →nitrogen · yield · Phaseolus vulgaris (common bean)Positive and negative results
130 papers in the same direction as this paper · 22 in the opposite direction · 3 reporting no difference from an alternative
- positive
- negative
- no effect
152 papers more in this group
See all 156 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.