Abstract
Field experiments were conducted to investigate the response of common bean (Phaseolus vulgaris L.) to nitrogen fertilizer. The main factor included the fertilizer (Granular Urea 46% N), was made up of two levels: no fertilization (0 kg/plot: control) and fertilization (0.4 kg/plot), while the secondary factor was the variety (three varieties of common bean: Djedida, Nelson and Jalila). The experimental design was a randomized complete block design with split plot arrangement and replicated four times. The effect of fertilization was evaluated during two development stages (flowering and fruiting) for each variety and this on the total dry biomass, the length of the aerial and root parts, as well as on the number of secondary roots. On the other hand, the combined effect of fertilization and variety was studied on some yield parameters per plant, such as the number of flowers, pods, seeds and the harvest index. In addition, the number of nodules at the end of seed maturation was evaluated. The results indicated that the nitrogen fertilizer application significantly reduced the root length, the number of nodules and secondary roots in most of the common bean varieties. However, fertilizer application significantly increased dry matter in both flowering and fruiting stages, for the three studied varieties. Pod number per plant and seed yield was increased by the application of N fertilizer, depending on varieties and the parameters being measured. Djedida and Jalila varieties gave the best yield and can therefore be recommended to farmers. According to our results, the percentage of improvement by N fertilization on one parameter or another does not exceed an average of 20%, compared to the control. Indeed, the effect of fertilization is positive and seems to increase the harvest index by 18% in Djedida and by 20% in Jalila, compared to non-fertilized plants. Unfertilized plants of the variety Nelson showed the highest ability to nodulate.
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Claims 9
Claim · model-written summary
Nitrogen fertilizer reduced root length, the number of nodules and secondary roots in common bean.
- Taxon
- common bean
Phaseolus vulgarise0 - Treatment
- nitrogen fertilizere0
- Outcome
- root length, the number of nodules and secondary rootse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicated that the nitrogen fertilizer application significantly reduced the root length, the number of nodules and secondary roots in most of the common bean varieties.”
Claim · model-written summary
Nitrogen fertilizer increased dry matter in common bean.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- fertilizer applicatione0
- Outcome
- dry mattere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer application significantly increased dry matter in both flowering and fruiting stages, for the three studied varieties.”
t0“Common Bean”
Claim · model-written summary
Nitrogen fertilizer increased Pod number per plant and seed yield in common bean.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- application of N fertilizere0
- Outcome
- Pod number per plant and seed yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pod number per plant and seed yield was increased by the application of N fertilizer, depending on varieties and the parameters being measured.”
t0“Common Bean”
Claim · model-written summary
Djedida gave the best yield.
- Taxon
- Common BeanPhaseolus vulgarist0
- Material
- Djedidae0
- Outcome
- best yielde0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Djedida and Jalila varieties gave the best yield and can therefore be recommended to farmers.”
t0“Common Bean”
Claim · model-written summary
Jalila gave the best yield.
- Taxon
- Common BeanPhaseolus vulgarist0
- Material
- Jalilae0
- Outcome
- best yielde0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Djedida and Jalila varieties gave the best yield and can therefore be recommended to farmers.”
t0“Common Bean”
Claim · model-written summary
Improvement from N fertilization did not exceed an average of 20% across parameters.
- Taxon
- Common BeanPhaseolus vulgarist0
- Treatment
- N fertilizatione0
- Outcome
- percentage of improvemente0
- Value
- 20%e0
- Comparator
- the controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentage of improvement by N fertilization on one parameter or another does not exceed an average of 20%, compared to the control.”
t0“Common Bean”
Claim · model-written summary
Fertilization increased harvest index by 18% in Djedida.
- Taxon
- Common BeanPhaseolus vulgarist0
- Material
- Djedidae0
- Treatment
- fertilizatione0
- Outcome
- harvest indexe0
- Direction
- increasee0
- Value
- 18%e0
- Comparator
- non-fertilized plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of fertilization is positive and seems to increase the harvest index by 18% in Djedida and by 20% in Jalila, compared to non-fertilized plants.”
t0“Common Bean”
Claim · model-written summary
Fertilization increased harvest index by 20% in Jalila.
- Taxon
- Common BeanPhaseolus vulgarist0
- Material
- Jalilae0
- Treatment
- fertilizatione0
- Outcome
- harvest indexe0
- Direction
- increasee0
- Value
- 20%e0
- Comparator
- non-fertilized plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of fertilization is positive and seems to increase the harvest index by 18% in Djedida and by 20% in Jalila, compared to non-fertilized plants.”
t0“Common Bean”
Claim · model-written summary
Unfertilized Nelson plants had the highest ability to nodulate.
- Taxon
- Common BeanPhaseolus vulgarist0
- Material
- Nelsone0
- Outcome
- ability to nodulatee0
- Direction
- higheste0
- Qualifier
- Unfertilizede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unfertilized plants of the variety Nelson showed the highest ability to nodulate.”
t0“Common Bean”
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