Paper · 1981 · Lincoln (University of Nebraska)

MAXIMIZING SOYBEAN YIELDS GLYCINE MAX (L.) MERRIL

Germán Alonso Vélez Sánchez

19
claims
38
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

An experiment was designed to evaluate the effects of organic matter, foliar fertilization application, two systems of irrigation and the interactions of treatments on the growth and seed yield of three soybean varieties. The experiment was conducted for two consecutive years (1977, 1978) at the University of Nebraska Field Laboratory at Mead, Nebraska. The interactions of organic matter applications with irrigation and foliar fertilization increased yield. Apparently, the addition of organic matter to the soil improved the soil-water-root relationships which in turn increased seed yields. Irrigation increased yields 0.22 tons/ha over the non-irrigated check regardless of system used. The early (Amsoy 71) and full-season (Woodworth) varieties produced higher yields than the later maturity variety (Cutler 71). Foliar fertilization at one-half the suggested rate increased yields 0.11 tons/ha. However, the full fertilization rate caused excessive vegetative growth and subsequent lodging, so that yields were essentially equal to the non-fertilized check. Irrigation increased crude protein of the soybeans produced regardless of the method of application. As the rate of foliar fertilization increased, the level of seed protein increased, showing that foliar N and P were absorbed by the leaves and translocated into the seed. Only varieties showed differences in dry matter accumulation at all growth stages studied. However, each of the three varieties was highest in dry matter accumulation during at least one growth stage. Nitrogen content of the vegetative growth increased as the rate of fertilization increased. The nitrogen foliar applied was absorbed by the leaves and translocated to the other vegetative plant parts. There were varietal differences in N content. No relationship between N content and dry matter accumulation, N content and yield or dry matter accumulation and yield were observed.

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Claims 19

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Interactions of organic matter with irrigation and foliar fertilization increased soybean yield.

Taxon
SOYBEANGlycine maxt0
Treatment
organic matter applications with irrigation and foliar fertilizatione0
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The interactions of organic matter applications with irrigation and foliar fertilization increased yield.”

✓ located verbatim in the source · abstract, characters 356–461 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Organic matter apparently improved soil-water-root relationships, increasing seed yields.

Taxon
SOYBEANGlycine maxt0
Treatment
addition of organic matter to the soile0
Outcome
seed yieldse0
Qualifier
soil-water-root relationshipse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Apparently, the addition of organic matter to the soil improved the soil-water-root relationships which in turn increased seed yields.”

✓ located verbatim in the source · abstract, characters 462–596 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation increased soybean yields by 0.22 tons/ha regardless of system.

Taxon
SOYBEANGlycine maxt0
Treatment
Irrigatione0
Outcome
yieldse0
Direction
increasede0
Value
0.22 tons/hae0
Comparator
non-irrigated checke0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Irrigation increased yields 0.22 tons/ha over the non-irrigated check regardless of system used.”

✓ located verbatim in the source · abstract, characters 597–693 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Amsoy 71 yielded more than Cutler 71.

Taxon
SOYBEANGlycine maxt0
Material
Amsoy 71e0
Outcome
yieldse0
Direction
highere0
Comparator
Cutler 71e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The early (Amsoy 71) and full-season (Woodworth) varieties produced higher yields than the later maturity variety (Cutler 71).”

✓ located verbatim in the source · abstract, characters 694–820 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Woodworth yielded more than Cutler 71.

Taxon
SOYBEANGlycine maxt0
Material
Woodworthe0
Outcome
yieldse0
Direction
highere0
Comparator
Cutler 71e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The early (Amsoy 71) and full-season (Woodworth) varieties produced higher yields than the later maturity variety (Cutler 71).”

✓ located verbatim in the source · abstract, characters 694–820 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Half-rate foliar fertilization increased soybean yields by 0.11 tons/ha.

Taxon
SOYBEANGlycine maxt0
Treatment
Foliar fertilization at one-half the suggested ratee0
Outcome
yieldse0
Direction
increasede0
Value
0.11 tons/hae0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Foliar fertilization at one-half the suggested rate increased yields 0.11 tons/ha.”

✓ located verbatim in the source · abstract, characters 821–903 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Full-rate foliar fertilization caused excessive vegetative growth and lodging.

Taxon
SOYBEANGlycine maxt0
Treatment
full fertilization ratee0
Outcome
excessive vegetative growth and subsequent lodginge0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“However, the full fertilization rate caused excessive vegetative growth and subsequent lodging, so that yields were essentially equal to the non-fertilized check.”

✓ located verbatim in the source · abstract, characters 904–1066 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Full-rate foliar fertilization gave yields essentially equal to the non-fertilized check.

Taxon
SOYBEANGlycine maxt0
Treatment
full fertilization ratee0
Outcome
yieldse0
Direction
essentially equale0
Comparator
non-fertilized checke0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“However, the full fertilization rate caused excessive vegetative growth and subsequent lodging, so that yields were essentially equal to the non-fertilized check.”

✓ located verbatim in the source · abstract, characters 904–1066 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation increased crude protein of soybeans regardless of application method.

Taxon
SOYBEANGlycine maxt0
Treatment
Irrigatione0
Outcome
crude proteine0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Irrigation increased crude protein of the soybeans produced regardless of the method of application.”

✓ located verbatim in the source · abstract, characters 1067–1167 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed protein rose with foliar fertilization rate.

Taxon
SOYBEANGlycine maxt0
Treatment
rate of foliar fertilizatione0
Outcome
level of seed proteine0
Direction
increasede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“As the rate of foliar fertilization increased, the level of seed protein increased, showing that foliar N and P were absorbed by the leaves and translocated into the seed.”

✓ located verbatim in the source · abstract, characters 1168–1339 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar N and P were absorbed by leaves and translocated to seed.

Taxon
SOYBEANGlycine maxt0
Outcome
foliar N and P were absorbed by the leaves and translocated into the seede0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“foliar N and P were absorbed by the leaves and translocated into the seed”

✓ located verbatim in the source · abstract, characters 1265–1338 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Varieties differed in dry matter accumulation at all studied growth stages.

Taxon
SOYBEANGlycine maxt0
Outcome
dry matter accumulatione0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Only varieties showed differences in dry matter accumulation at all growth stages studied.”

✓ located verbatim in the source · abstract, characters 1340–1430 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Each variety had its highest dry matter accumulation during at least one growth stage.

Taxon
SOYBEANGlycine maxt0
Outcome
dry matter accumulatione0
Direction
higheste0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“However, each of the three varieties was highest in dry matter accumulation during at least one growth stage.”

✓ located verbatim in the source · abstract, characters 1431–1540 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Vegetative nitrogen content rose with fertilization rate.

Taxon
SOYBEANGlycine maxt0
Treatment
rate of fertilizatione0
Outcome
Nitrogen content of the vegetative growthe0
Direction
increasede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen content of the vegetative growth increased as the rate of fertilization increased.”

✓ located verbatim in the source · abstract, characters 1541–1632 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar nitrogen was absorbed by leaves and translocated to other vegetative parts.

Taxon
SOYBEANGlycine maxt0
Outcome
nitrogen foliar applied was absorbed by the leaves and translocated to the other vegetative plant partse0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The nitrogen foliar applied was absorbed by the leaves and translocated to the other vegetative plant parts.”

✓ located verbatim in the source · abstract, characters 1633–1741 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Varieties differed in nitrogen content.

Taxon
SOYBEANGlycine maxt0
Outcome
N contente0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“There were varietal differences in N content.”

✓ located verbatim in the source · abstract, characters 1742–1787 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen content was not related to dry matter accumulation.

Taxon
SOYBEANGlycine maxt0
Outcome
N content and dry matter accumulatione0
Direction
No relationshipe0

Not reportedMaterial

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“No relationship between N content and dry matter accumulation, N content and yield or dry matter accumulation and yield were observed.”

✓ located verbatim in the source · abstract, characters 1788–1922 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen content was not related to yield.

Taxon
SOYBEANGlycine maxt0
Outcome
N content and yielde0
Direction
No relationshipe0

Not reportedMaterial

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“No relationship between N content and dry matter accumulation, N content and yield or dry matter accumulation and yield were observed.”

✓ located verbatim in the source · abstract, characters 1788–1922 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Dry matter accumulation was not related to yield.

Taxon
SOYBEANGlycine maxt0
Outcome
dry matter accumulation and yielde0
Direction
No relationshipe0

Not reportedMaterial

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“No relationship between N content and dry matter accumulation, N content and yield or dry matter accumulation and yield were observed.”

✓ located verbatim in the source · abstract, characters 1788–1922 · show in text ↑
t0

“SOYBEAN”

✓ located verbatim in the source · title, characters 11–18 · show in text ↑

irrigation · quality: protein · Glycine max (soybean)Results differ

26 papers: 17 positive, 9 negative or no effect

16 papers in the same direction as this paper · 9 in the opposite direction

  1. no effect
  2. negative
  3. no effect

22 papers more in this group

See all 26 papers →

organic · yield · Glycine max (soybean)Results differ

76 papers: 65 positive, 11 negative or no effect

64 papers in the same direction as this paper · 6 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

72 papers more in this group

See all 76 papers →

irrigation · yield · Glycine max (soybean)Positive and negative results

343 papers: 264 positive, 79 negative or no effect

263 papers in the same direction as this paper · 72 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

339 papers more in this group

See all 343 papers →

application · yield · Glycine max (soybean)Positive and negative results

404 papers: 332 positive, 72 negative or no effect

331 papers in the same direction as this paper · 66 in the opposite direction · 6 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

400 papers more in this group

See all 404 papers →

fertilization · growth · Glycine max (soybean)Positive and negative results

418 papers: 359 positive, 59 negative or no effect

58 papers in the same direction as this paper · 359 in the opposite direction

  1. positive
  2. positive
  3. positive

414 papers more in this group

See all 418 papers →

fertilization · yield · Glycine max (soybean)Positive and negative results

1,192 papers: 1,021 positive, 171 negative or no effect

1,020 papers in the same direction as this paper · 155 in the opposite direction · 16 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

1,188 papers more in this group

See all 1,192 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.