Abstract
This study was conducted to measure the effects of the timing of nitrogen fertilization (NF) on soil N-NH4+ and N-NO3-, macronutrient contents in the leaves and grains, and the grain yield of super early genotypes (SEG) of common bean. Field experiments were performed for four growing seasons in an Oxisol soil in Santo Antônio de Goiás, Brazil, using a randomized block experimental design in a split plot scheme. The plots were planted with common bean SEG, and the subplots were the NF timings, including a treatment without N fertilization. The available soil N with improved fertility and medium to high levels of organic matter were enough to meet the N demands of the common bean crop in order to achieve yields of up to 3,000 kg ha-1. Fertilization with N, regardless of the time of application, provided no increase in the yield components, grain yield and the N, P and K contents in the leaves and grains of the common bean SEG. The genotypes CNFC 15873 and CNFC 15875 had higher grain yields in the rainfed summer, and the genotype CNFC 15874 had higher grain yields in the irrigated winter growing season. It can be inferred that the use of common bean SEG, with life cycles ranging from 65 to 77 days, can be a promising technology, providing grain yields similar to the control (IPR Colibri).
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Claims 7
Claim · model-written summary
Available soil nitrogen supported common bean yields up to 3,000 kg ha-1.
- Taxon
- common bean
Phaseolus vulgarise0 - Outcome
- yieldse0
- Value
- 3,000 kg ha-1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The available soil N with improved fertility and medium to high levels of organic matter were enough to meet the N demands of the common bean crop in order to achieve yields of up to 3,000 kg ha-1.”
Claim · model-written summary
Nitrogen fertilization at any timing did not increase yield components or grain yield.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Fertilization with Ne0
- Outcome
- yield components, grain yielde0
- Direction
- no increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization with N, regardless of the time of application, provided no increase in the yield components, grain yield and the N, P and K contents in the leaves and grains of the common bean SEG.”
Claim · model-written summary
Nitrogen fertilization at any timing did not increase leaf or grain N, P, and K contents.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Fertilization with Ne0
- Outcome
- N, P and K contents in the leaves and grainse0
- Direction
- no increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization with N, regardless of the time of application, provided no increase in the yield components, grain yield and the N, P and K contents in the leaves and grains of the common bean SEG.”
Claim · model-written summary
CNFC 15873 had higher grain yield in rainfed summer.
Not reportedTaxon
Verbatim
e0“The genotypes CNFC 15873 and CNFC 15875 had higher grain yields in the rainfed summer, and the genotype CNFC 15874 had higher grain yields in the irrigated winter growing season.”
Claim · model-written summary
CNFC 15875 had higher grain yield in rainfed summer.
Not reportedTaxon
Verbatim
e0“The genotypes CNFC 15873 and CNFC 15875 had higher grain yields in the rainfed summer, and the genotype CNFC 15874 had higher grain yields in the irrigated winter growing season.”
Claim · model-written summary
CNFC 15874 had higher grain yield in irrigated winter.
Not reportedTaxon
Verbatim
e0“The genotypes CNFC 15873 and CNFC 15875 had higher grain yields in the rainfed summer, and the genotype CNFC 15874 had higher grain yields in the irrigated winter growing season.”
Claim · model-written summary
Super early common bean genotypes yielded similarly to IPR Colibri.
- Taxon
- common beanPhaseolus vulgarise0
- Outcome
- grain yields similar to the controle0
- Value
- 65 to 77 dayse0
- Comparator
- IPR Colibrie0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It can be inferred that the use of common bean SEG, with life cycles ranging from 65 to 77 days, can be a promising technology, providing grain yields similar to the control (IPR Colibri).”
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