Paper · 2023 · IOP Conference Series Earth and Environmental Science

Improvement of growth and yield of several varieties of soybean following paddy rice using Rhizobium biofertilizer with reduced NPK doses

W Wangiyana; D F Arianti; I K Ngawit

8
claims
21
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

Abstract In paddy fields, soybean is generally planted following harvest of paddy rice crops, and the average yield achieved by farmers is still low. This study aimed to examine the effect of applying Rhizobium biofertilizer with reduced NPK fertilizer dose on growth and yield of soybean grown following flooded rice crop. The experiment, conducted on farmers’ paddy fields in East Lombok (Indonesia) from August to November 2020 was arranged according to Randomized Block Design, with two treatment factors, namely soybean varieties (Anjasmoro, Grobogan, Biosoy-2) and biofertilizers (P0= without biofertilizer, P1= 50% NPK dose + Rhizobium biofertilizer). The results showed that application of Rhizobium biofertilizer did not significantly increase growth and yield of soybean except for weight of 100 grains, but the significant interaction effect on trifoliate number, pod number, unfilled pod number, weight of 100 grains, harvest index, and grain yield indicated that grain yields of Grobogan (2.03 tons/ha) and Biosoy-2 (2.31 tons/ha) were significantly higher with biofertilizer application while that of Anjasmoro variety (2.83 tons/ha) was higher under recommended NPK fertilization doses. It was concluded that the NPK fertilizer dose can be reduced by 50% of the recommended dose if it is accompanied by application of Rhizobium biofertilizer.

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 8

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Rhizobium biofertilizer did not significantly increase soybean growth and yield overall.

Taxon
soybeanGlycine maxe0
Treatment
Rhizobium biofertilizere0
Interactor
RhizobiumRhizobiume0symbiont
Outcome
growth and yielde0
Direction
did not significantly increasee0
Comparator
without biofertilizere1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of Rhizobium biofertilizer did not significantly increase growth and yield of soybean”

✓ located verbatim in the source · abstract, characters 683–780 · show in text ↑
e1

“P0= without biofertilizer, P1= 50% NPK dose + Rhizobium biofertilizer”

✓ located verbatim in the source · abstract, characters 587–656 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Rhizobium biofertilizer significantly affected soybean 100 grain weight.

Taxon
soybeanGlycine maxe0
Treatment
Rhizobium biofertilizere0
Interactor
RhizobiumRhizobiume0symbiont
Outcome
weight of 100 grainse0
Comparator
without biofertilizere1

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of Rhizobium biofertilizer did not significantly increase growth and yield of soybean except for weight of 100 grains”

✓ located verbatim in the source · abstract, characters 683–812 · show in text ↑
e1

“P0= without biofertilizer, P1= 50% NPK dose + Rhizobium biofertilizer”

✓ located verbatim in the source · abstract, characters 587–656 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Variety and fertilizer interacted significantly for trifoliate number, pod number and unfilled pod number.

Taxon
soybeanGlycine maxt0
Treatment
biofertilizerse1
Outcome
trifoliate number, pod number, unfilled pod numbere0

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

“significant interaction effect on trifoliate number, pod number, unfilled pod number, weight of 100 grains, harvest index, and grain yield”

✓ located verbatim in the source · abstract, characters 822–960 · show in text ↑
e1

“soybean varieties (Anjasmoro, Grobogan, Biosoy-2) and biofertilizers”

✓ located verbatim in the source · abstract, characters 517–585 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 56–63 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Variety and fertilizer interacted significantly for 100 grain weight, harvest index and grain yield.

Taxon
soybeanGlycine maxt0
Treatment
biofertilizerse1
Outcome
weight of 100 grains, harvest index, and grain yielde0

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

“significant interaction effect on trifoliate number, pod number, unfilled pod number, weight of 100 grains, harvest index, and grain yield”

✓ located verbatim in the source · abstract, characters 822–960 · show in text ↑
e1

“soybean varieties (Anjasmoro, Grobogan, Biosoy-2) and biofertilizers”

✓ located verbatim in the source · abstract, characters 517–585 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 56–63 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Grobogan grain yield was significantly higher with biofertilizer, reaching 2.03 tons/ha.

Taxon
soybeanGlycine maxt0
Material
Grobogane0
Treatment
biofertilizer applicatione0
Interactor
RhizobiumRhizobiume1symbiont
Outcome
grain yieldse0
Direction
highere0
Value
2.03 tons/hae0
Comparator
without biofertilizere1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“grain yields of Grobogan (2.03 tons/ha) and Biosoy-2 (2.31 tons/ha) were significantly higher with biofertilizer application”

✓ located verbatim in the source · abstract, characters 976–1100 · show in text ↑
e1

“P0= without biofertilizer, P1= 50% NPK dose + Rhizobium biofertilizer”

✓ located verbatim in the source · abstract, characters 587–656 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 56–63 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biosoy-2 grain yield was significantly higher with biofertilizer, reaching 2.31 tons/ha.

Taxon
soybeanGlycine maxt0
Material
Biosoy-2e0
Treatment
biofertilizer applicatione0
Interactor
RhizobiumRhizobiume1symbiont
Outcome
grain yieldse0
Direction
highere0
Value
2.31 tons/hae0
Comparator
without biofertilizere1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“grain yields of Grobogan (2.03 tons/ha) and Biosoy-2 (2.31 tons/ha) were significantly higher with biofertilizer application”

✓ located verbatim in the source · abstract, characters 976–1100 · show in text ↑
e1

“P0= without biofertilizer, P1= 50% NPK dose + Rhizobium biofertilizer”

✓ located verbatim in the source · abstract, characters 587–656 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 56–63 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Anjasmoro grain yield was higher under recommended NPK doses, at 2.83 tons/ha.

Taxon
soybeanGlycine maxt0
Material
Anjasmoroe0
Treatment
recommended NPK fertilization dosese0
Outcome
that of Anjasmoro varietye0
Direction
highere0
Value
2.83 tons/hae0
Comparator
50% NPK dose + Rhizobium biofertilizere1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“that of Anjasmoro variety (2.83 tons/ha) was higher under recommended NPK fertilization doses”

✓ located verbatim in the source · abstract, characters 1107–1200 · show in text ↑
e1

“P1= 50% NPK dose + Rhizobium biofertilizer”

✓ located verbatim in the source · abstract, characters 614–656 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 56–63 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors concluded that Rhizobium biofertilizer permits a 50% reduction in the recommended NPK dose.

Taxon
soybeanGlycine maxt0
Treatment
application of Rhizobium biofertilizere0
Interactor
RhizobiumRhizobiume0symbiont
Outcome
NPK fertilizer dose can be reduced by 50% of the recommended dosee0
Value
50%e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the NPK fertilizer dose can be reduced by 50% of the recommended dose if it is accompanied by application of Rhizobium biofertilizer”

✓ located verbatim in the source · abstract, characters 1224–1356 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 56–63 · show in text ↑

Rhizobium · yield · Glycine max (soybean)Results differ

92 papers: 83 positive, 9 negative or no effect

8 papers in the same direction as this paper · 83 in the opposite direction

  1. positive
  2. positive
  3. positive

88 papers more in this group

See all 92 papers →

inoculation · Rhizobium · Glycine max (soybean)Positive and negative results

46 papers: 43 positive, 3 negative or no effect

42 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

42 papers more in this group

See all 46 papers →

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

566 papers: 491 positive, 75 negative or no effect

74 papers in the same direction as this paper · 491 in the opposite direction

  1. positive
  2. positive
  3. positive

562 papers more in this group

See all 566 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.