Paper · 2020 · IRAQI JOURNAL OF AGRICULTURAL SCIENCES

EFFECT OF ADDITION OF VERMICOMPOST, BIO AND MINERAL FERTILIZER ON THE AVAILABILITY OF SOME NUTRIENTS IN SOIL AND POTATO YIELD

ALmamori & Abdul-Ratha

7
claims
14
verbatim quotes
22
citations
2
research areas
✓
Open access · cc-by

Abstract

A nitrogenous bio-fertilizer comibination was prepared contain Azospirillum lipoferum, and Azotobacter chroococcum bacteria. A phosphate bio-fertilizer consisting of Bacillus megaterium and Glomus mosseae fungus was also prepared. vermicompost was produced from earthworms imported from Iran and others isolated locally. A factorial experiment was carried to evaluate the effect of the interaction between these combinations and vermicompost types under levels of 0%, 25% and 50% of NPK. The results showed a significant superiority of the bio-fertilizer (nitrogen and phosphate) treatment in available nitrogen in the soil after harvest, number of tubers, yield per plant , and the total yield with 39.70 mg N kg -1, 11.03 tuber plant -1, 1367.40 g plant-1, and 43.76 Mg ha-1 respectively. While phosphate bio fertilizer treatment giving available phosphorus in the soil by 22.74 Mg P kg -1 , vermicompost produced from imported earthworms was superior in giving available phosphate in the soil with value 22.74 mg p kg -1 . While the tri interaction was superior for all studied characteristics.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined nitrogen and phosphate biofertilizer gave superior soil available nitrogen after harvest.

Treatment
bio-fertilizer (nitrogen and phosphate) treatmente0
Outcome
available nitrogen in the soil after harveste0
Direction
superioritye0
Value
39.70 mg N kg -1e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results showed a significant superiority of the bio-fertilizer (nitrogen and phosphate) treatment in available nitrogen in the soil after harvest, number of tubers, yield per plant , and the total yield with 39.70 mg N kg -1, 11.03 tuber plant -1, 1367.40 g plant-1, and 43.76 Mg ha-1 respectively”

✓ located verbatim in the source · abstract, characters 488–789 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 113–119 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined biofertilizer gave superior tuber number.

Treatment
bio-fertilizer (nitrogen and phosphate) treatmente0
Outcome
number of tuberse0
Direction
superioritye0
Value
11.03 tuber plant -1e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results showed a significant superiority of the bio-fertilizer (nitrogen and phosphate) treatment in available nitrogen in the soil after harvest, number of tubers, yield per plant , and the total yield with 39.70 mg N kg -1, 11.03 tuber plant -1, 1367.40 g plant-1, and 43.76 Mg ha-1 respectively”

✓ located verbatim in the source · abstract, characters 488–789 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 113–119 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined biofertilizer gave superior yield per plant.

Treatment
bio-fertilizer (nitrogen and phosphate) treatmente0
Outcome
yield per plante0
Direction
superioritye0
Value
1367.40 g plant-1e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results showed a significant superiority of the bio-fertilizer (nitrogen and phosphate) treatment in available nitrogen in the soil after harvest, number of tubers, yield per plant , and the total yield with 39.70 mg N kg -1, 11.03 tuber plant -1, 1367.40 g plant-1, and 43.76 Mg ha-1 respectively”

✓ located verbatim in the source · abstract, characters 488–789 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 113–119 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined biofertilizer gave superior total yield.

Treatment
bio-fertilizer (nitrogen and phosphate) treatmente0
Outcome
total yielde0
Direction
superioritye0
Value
43.76 Mg ha-1e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results showed a significant superiority of the bio-fertilizer (nitrogen and phosphate) treatment in available nitrogen in the soil after harvest, number of tubers, yield per plant , and the total yield with 39.70 mg N kg -1, 11.03 tuber plant -1, 1367.40 g plant-1, and 43.76 Mg ha-1 respectively”

✓ located verbatim in the source · abstract, characters 488–789 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 113–119 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Phosphate biofertilizer produced the stated soil available phosphorus level.

Treatment
phosphate bio fertilizer treatmente0
Outcome
available phosphorus in the soile0
Value
22.74 Mg P kg -1e0

Not reportedComparatorDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“phosphate bio fertilizer treatment giving available phosphorus in the soil by 22.74 Mg P kg -1”

✓ located verbatim in the source · abstract, characters 797–891 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 113–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Vermicompost from imported earthworms was superior for soil available phosphate.

Treatment
vermicompost produced from imported earthwormse0
Outcome
available phosphate in the soile0
Direction
superiore0
Value
22.74 mg p kg -1e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“vermicompost produced from imported earthworms was superior in giving available phosphate in the soil with value 22.74 mg p kg -1”

✓ located verbatim in the source · abstract, characters 894–1023 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 113–119 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The three-factor interaction was superior for all studied characteristics.

Outcome
all studied characteristicse0
Direction
superiore0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the tri interaction was superior for all studied characteristics”

✓ located verbatim in the source · abstract, characters 1032–1096 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 113–119 · show in text ↑

phosphorus · yield · Solanum tuberosum (potato)Results differ

51 papers: 42 positive, 9 negative or no effect

41 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative

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nitrogen · yield · Solanum tuberosum (potato)Results differ

132 papers: 109 positive, 23 negative or no effect

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fertilization · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results

45 papers: 28 positive, 17 negative or no effect

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  1. negative
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inoculation · yield · Solanum tuberosum (potato)Positive and negative results

93 papers: 80 positive, 13 negative or no effect

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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.