Abstract
The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1) was evaluated on a Red-Yellow Latosol (Psamentic Haplortox) of Arapiraca and on a Solodic Planosol (Ustalf) of Igaci, both sandy-clay-loams located in the State of Alagoas, Brazil. Rates of 30,60 and 90 kg N/ha were applied placing the urea totally in the furrow at planting time; totally sidedressed twenty days after planting, mixed or not with the soil; or 1/3 of the amount in the furrow at planting plus 2/3 sidedressed twenty days after planting, mixed or not with the soil. Bean yield responses to nitrogen followed quadratic equations. In the Red-Yellow Latosol response to nitrogen occurred up to the rate of 66 kg N/ha, while in the Solodic Planosol the yield increased up to the highest applied rate of 90 kg N/ha. The relative yield increase for each site was 22% and 16%, respectively. Sidedressed application of the total amount of urea resulted in the lowest yields, whereas split application and furrow fertilization were the best and equally effective methods. No significant yield increase was observed by mixing the urea with the soil.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 10
Claim · model-written summary
Bean yield responses to nitrogen followed quadratic equations.
- Taxon
- common beans
Phaseolus vulgarise0 - Material
- cv. IPA-1e0
- Treatment
- nitrogene1
- Outcome
- yield responsese1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e1“Bean yield responses to nitrogen followed quadratic equations”
Claim · model-written summary
On the Red-Yellow Latosol, the yield response to nitrogen increased up to 66 kg N/ha.
- Taxon
- common beans
Phaseolus vulgarise0 - Treatment
- nitrogene2
- Outcome
- response to nitrogene2
- Direction
- increaseinferrede2
- Value
- 66 kg N/hae2
- Setting
- Red-Yellow Latosole2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e2“In the Red-Yellow Latosol response to nitrogen occurred up to the rate of 66 kg N/ha”
Claim · model-written summary
On the Solodic Planosol, yield increased up to the highest applied rate of 90 kg N/ha.
- Taxon
- common beans
Phaseolus vulgarise0 - Treatment
- 90 kg N/hae3
- Outcome
- yielde3
- Direction
- increasede3
- Setting
- Solodic Planosole3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e3“while in the Solodic Planosol the yield increased up to the highest applied rate of 90 kg N/ha”
Claim · model-written summary
The relative yield increase on the Red-Yellow Latosol site was 22%.
- Taxon
- common beans
Phaseolus vulgarise0 - Outcome
- relative yield increasee4
- Direction
- increasee4
- Value
- 22%e4
- Setting
- Red-Yellow Latosole2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e2“In the Red-Yellow Latosol response to nitrogen occurred up to the rate of 66 kg N/ha”
e4“The relative yield increase for each site was 22% and 16%, respectively”
Claim · model-written summary
The relative yield increase on the Solodic Planosol site was 16%.
- Taxon
- common beans
Phaseolus vulgarise0 - Outcome
- relative yield increasee4
- Direction
- increasee4
- Value
- 16%e4
- Setting
- Solodic Planosole3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e3“while in the Solodic Planosol the yield increased up to the highest applied rate of 90 kg N/ha”
e4“The relative yield increase for each site was 22% and 16%, respectively”
Claim · model-written summary
Sidedressed application of the total amount of urea gave the lowest bean yields compared with split application and furrow fertilization.
- Taxon
- common beans
Phaseolus vulgarise0 - Treatment
- Sidedressed application of the total amount of ureae5
- Outcome
- yieldse5
- Direction
- loweste5
- Comparator
- split application and furrow fertilizatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e5“Sidedressed application of the total amount of urea resulted in the lowest yields, whereas split application and furrow fertilization were the best and equally effective methods”
Claim · model-written summary
Split application of urea was among the best methods for bean yield compared with total sidedressing.
- Taxon
- common beans
Phaseolus vulgarise0 - Treatment
- split applicatione5
- Outcome
- yieldse5
- Direction
- beste5
- Comparator
- Sidedressed application of the total amount of ureae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e5“Sidedressed application of the total amount of urea resulted in the lowest yields, whereas split application and furrow fertilization were the best and equally effective methods”
Claim · model-written summary
Furrow fertilization was among the best methods for bean yield compared with total sidedressing.
- Taxon
- common beans
Phaseolus vulgarise0 - Treatment
- furrow fertilizatione5
- Outcome
- yieldse5
- Direction
- beste5
- Comparator
- Sidedressed application of the total amount of ureae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e5“Sidedressed application of the total amount of urea resulted in the lowest yields, whereas split application and furrow fertilization were the best and equally effective methods”
Claim · model-written summary
Split application and furrow fertilization were equally effective for bean yield.
- Taxon
- common beans
Phaseolus vulgarise0 - Treatment
- split applicatione5
- Outcome
- equally effectivee5
- Direction
- no_changeinferrede5
- Comparator
- furrow fertilizatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e5“Sidedressed application of the total amount of urea resulted in the lowest yields, whereas split application and furrow fertilization were the best and equally effective methods”
Claim · model-written summary
Mixing urea with the soil gave no significant bean yield increase.
- Taxon
- common beans
Phaseolus vulgarise0 - Treatment
- mixing the urea with the soile6
- Outcome
- yielde6
- Direction
- increasee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of rate and method of urea application on the yield of common beans (Phaseolus vulgaris L., cv. IPA-1)”
e6“No significant yield increase was observed by mixing the urea with the soil”
The same questions in other papers
irrigation · yield · Phaseolus vulgaris (common bean)Positive and negative results
86 papers in the same direction as this paper · 32 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- negative
118 papers more in this group
See all 122 papers →nitrogen · yield · Phaseolus vulgaris (common bean)Positive and negative results
24 papers in the same direction as this paper · 131 in the opposite direction
- no effect
- positive
- positive
152 papers more in this group
See all 156 papers →fertilization · yield · Phaseolus vulgaris (common bean)Positive and negative results
330 papers in the same direction as this paper · 42 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- no effect
- no effect
372 papers more in this group
See all 376 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.