Abstract
A Field experiment was conducted to follow up the effect of-organic and/or mineral N fertilizer either solely or in combinations on seed yield of common bean plant grown on sandy soil using 15N tracer technique. The experimental design was a Factorial Complete Randomized Block Design (FCRBD) and treatments were replicated three times. Each experimental plot (10m2) received different proportions of organic and / or mineral N fertilizer up to 100% N in presence or absence of rhizobium inoculants. Results indicated the enhancement of seed yield and N uptake by bacterial inoculation. The overall averages of organic sources revealed the superiority of quite manure over leuceana residues followed by compost treatment. Absolute values of Ndff, Ndfs+ Ndfo and Ndfa were frequently affected by portions of chemical and organic additives whereas Ndff tended to increase with increasing N fertilizer rate. Adversely, Ndfa was negatively affected by increasing N rate. Organic additives enhanced the portions of Ndff and Ndfs+ Ndfo. This holds true with and without Rhizobium inoculation. These portions were markedly increased as affected by the addition of quite manure mixed with moderate N fertilizer rate (50% Chem-N + 50% quite manure-N). Low to moderate quantities of chemical fertilizer in combination with organic additives had enhanced the utilization of chemical-N source comparing to the full chemical fertilized plants.
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Claims 8
Claim · model-written summary
Bacterial (rhizobium) inoculation enhanced seed yield and N uptake of common bean.
- Taxon
- common bean
Phaseolus vulgarise1 - Treatment
- bacterial inoculatione2
- Outcome
- seed yield and N uptakee2
- Direction
- enhancemente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e2“Results indicated the enhancement of seed yield and N uptake by bacterial inoculation”
Claim · model-written summary
Quite manure gave higher overall averages than leuceana residues, followed by compost, among organic sources.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- quite manuree3
- Outcome
- overall averages of organic sourcese3
- Direction
- superioritye3
- Comparator
- leuceana residuese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e3“The overall averages of organic sources revealed the superiority of quite manure over leuceana residues followed by compost treatment”
Claim · model-written summary
Ndfa was negatively affected by increasing N rate.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- increasing N ratee4
- Outcome
- Ndfae4
- Direction
- negatively affectede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e4“Adversely, Ndfa was negatively affected by increasing N rate”
Claim · model-written summary
Ndff tended to increase with increasing N fertilizer rate.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- increasing N fertilizer ratee5
- Outcome
- Ndffe5
- Direction
- tended to increasee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e5“Ndff tended to increase with increasing N fertilizer rate”
Claim · model-written summary
Organic additives enhanced the portions of Ndff and Ndfs+ Ndfo, with and without rhizobium inoculation.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- Organic additivese6
- Outcome
- portions of Ndff and Ndfs+ Ndfoe6
- Direction
- enhancede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e6“Organic additives enhanced the portions of Ndff and Ndfs+ Ndfo”
Claim · model-written summary
The portions of Ndff and Ndfs+ Ndfo were markedly increased by 50% Chem-N + 50% quite manure-N.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- 50% Chem-N + 50% quite manure-Ne7
- Outcome
- portionse7
- Direction
- markedly increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e7“These portions were markedly increased as affected by the addition of quite manure mixed with moderate N fertilizer rate (50% Chem-N + 50% quite manure-N)”
Claim · model-written summary
Low to moderate chemical fertilizer combined with organic additives enhanced utilization of chemical-N compared with full chemical fertilization.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- Low to moderate quantities of chemical fertilizer in combination with organic additivese7
- Outcome
- utilization of chemical-N sourcee7
- Direction
- enhancede7
- Comparator
- full chemical fertilized plantse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e7“Low to moderate quantities of chemical fertilizer in combination with organic additives had enhanced the utilization of chemical-N source comparing to the full chemical fertilized plants”
Claim · model-written summary
Absolute values of Ndff, Ndfs+ Ndfo and Ndfa were frequently affected by chemical and organic N additives.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- portions of chemical and organic additivese7
- Outcome
- Absolute values of Ndff, Ndfs+ Ndfo and Ndfae7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“seed yield of common bean plant grown on sandy soil”
e7“Absolute values of Ndff, Ndfs+ Ndfo and Ndfa were frequently affected by portions of chemical and organic additives”
The same questions in other 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
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See all 31 papers →inoculation · yield · Phaseolus vulgaris (common bean)Positive and negative results
152 papers in the same direction as this paper · 36 in the opposite direction · 6 reporting no difference from an alternative
- positive
- negative
- no effect
191 papers more in this group
See all 195 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.