Abstract
In the no‐till (NT) system, N availability may change depending on the number of years since NT was adopted. Thus, an experiment was conducted in a Typic Rhodudalf in Botucatu, São Paulo, Brazil, to evaluate the influence of the age (timing of establishment) of the NT system and N fertilizer management on the nutrition, yield, and N‐use efficiency (NUE) of common bean ( Phaseolus vulgaris L.) crop. Treatments included four management systems (a newly implemented NT system, an established NT system, a newly implemented NT with an application of 60 kg ha −1 N at pre‐sowing, and an established NT with an application of 60 kg ha −1 N at pre‐sowing) and four N rates (0, 30, 60, and 120 kg ha −1 ) sidedressed at the V 4 stage of common bean. The age of the NT system did not affect common bean nutrition or its response to sidedressed N application, but the established NT system, regardless of N application at pre‐sowing, provided a slightly greater common bean yield. In both the newly implemented and established NT systems, N fertilization increased the aboveground biomass, seed yield, and protein concentration in seeds. Even with the application of N at pre‐sowing, seed yield increased in response to sidedressed N fertilization in all the management systems. The NUE by common bean was greater in treatments receiving N at pre‐sowing. A higher seed yield and NUE of common bean grown in the NT systems after grass was achieved with the combined application of N at pre‐sowing and sidedressing.
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Claims 7
Claim · model-written summary
No-till age did not affect common bean nutrition or response to sidedressed nitrogen.
- Taxon
- common bean
Phaseolus vulgarise0 - Treatment
- age of the NT systeme0
- Outcome
- common bean nutrition or its response to sidedressed N applicatione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age of the NT system did not affect common bean nutrition or its response to sidedressed N application”
Claim · model-written summary
Established no-till provided slightly greater bean yield regardless of presowing nitrogen.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- established NT systeme0
- Outcome
- common bean yielde0
- Direction
- greatere0
- Qualifier
- regardless of N application at pre‐sowinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the established NT system, regardless of N application at pre‐sowing, provided a slightly greater common bean yield”
Claim · model-written summary
Nitrogen fertilization increased aboveground biomass and seed yield in both no-till systems.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- N fertilizatione0
- Outcome
- aboveground biomass, seed yielde0
- Direction
- increasede0
- Qualifier
- both the newly implemented and established NT systemse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both the newly implemented and established NT systems, N fertilization increased the aboveground biomass, seed yield, and protein concentration in seeds”
e1“common bean ( Phaseolus vulgaris L.) crop”
Claim · model-written summary
Nitrogen fertilization increased seed protein concentration in both no-till systems.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- N fertilizatione0
- Outcome
- protein concentration in seedse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both the newly implemented and established NT systems, N fertilization increased the aboveground biomass, seed yield, and protein concentration in seeds”
e1“common bean ( Phaseolus vulgaris L.) crop”
Claim · model-written summary
Sidedressed nitrogen increased seed yield in all management systems even with presowing nitrogen.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- sidedressed N fertilizatione0
- Outcome
- seed yielde0
- Direction
- increasede0
- Qualifier
- Even with the application of N at pre‐sowinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Even with the application of N at pre‐sowing, seed yield increased in response to sidedressed N fertilization in all the management systems”
e1“common bean ( Phaseolus vulgaris L.) crop”
Claim · model-written summary
Presowing nitrogen increased common bean nitrogen-use efficiency.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- N at pre‐sowinge0
- Outcome
- NUEe0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NUE by common bean was greater in treatments receiving N at pre‐sowing”
Claim · model-written summary
Combining presowing and sidedressed nitrogen produced higher seed yield and nitrogen-use efficiency after grass.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- combined application of N at pre‐sowing and sidedressinge0
- Outcome
- seed yield and NUEe0
- Direction
- highere0
- Qualifier
- NT systems after grasse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A higher seed yield and NUE of common bean grown in the NT systems after grass was achieved with the combined application of N at pre‐sowing and sidedressing”
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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.