Paper · 2011 · Journal of the Science of Food and Agriculture

Yield and fruit quality of four sweet corn hybrids (Zea mays) under conventional and integrated fertilization with vermicompost

Cristina Lazcano; Pedro Revilla; Rosa Ana Malvar; et al.

6
claims
13
verbatim quotes
84
citations
2
research areas
—
Not open access

Abstract

BACKGROUND: Vermicompost has been proposed as a valuable fertilizer for sustainable agriculture. The effects of vermicompost on yield and quality of sweet corn were evaluated in this study. In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer, and integrated fertilization regimes in which 75% of the nutrients were supplied by the inorganic fertilizer and 25% of the nutrients were supplied by either (ii) rabbit manure, or (iii) vermicompost. All three types of fertilization regime were supplied at two doses. Two pairs of nearly isogenic sweet corn hybrids homozygous for sugary1 and shrunken2 mutants were included in the trials to explore fertilizer × genotype interactions. Growth, yield and ear quality of the plants were evaluated in relation to the three fertilization regimes. RESULTS: In general, the integrated regimes yielded the same productivity levels as the conventional treatment. Moreover, both vermicompost and manure produced significant increases in plant growth and marketable yield, and also affected the chemical composition and quality of the marketable ear. Nevertheless, most of the observed effects of the organic fertilizers were genotype-dependent. CONCLUSION: The results confirm that the use of organic fertilizers such as vermicompost has a positive effect on crop yield and quality. Nevertheless, these effects were not general, indicating the complexity of the organic amendment-plant interactions and the importance of controlling genetic variation when studying the effects of vermicompost on plant growth.

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Claims 6

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Integrated fertilization regimes yielded the same productivity levels as the conventional treatment in sweet corn.

Taxon
sweet corne0
Treatment
integrated regimese2
Outcome
productivity levelse2
Direction
the samee2
Comparator
conventional treatmente2

Verbatim

e0

“In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer”

✓ located verbatim in the source · abstract, characters 190–311 · show in text ↑
e2

“In general, the integrated regimes yielded the same productivity levels as the conventional treatment”

✓ located verbatim in the source · abstract, characters 866–967 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost significantly increased plant growth and marketable yield of sweet corn.

Taxon
sweet corne0
Treatment
vermicomposte1
Outcome
plant growth and marketable yielde1
Direction
increasese1

Not reportedComparator

Verbatim

e0

“In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer”

✓ located verbatim in the source · abstract, characters 190–311 · show in text ↑
e1

“both vermicompost and manure produced significant increases in plant growth and marketable yield, and also affected the chemical composition and quality of the marketable ear”

✓ located verbatim in the source · abstract, characters 979–1153 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Manure significantly increased plant growth and marketable yield of sweet corn.

Taxon
sweet corne0
Treatment
manuree1
Outcome
plant growth and marketable yielde1
Direction
increasese1

Not reportedComparator

Verbatim

e0

“In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer”

✓ located verbatim in the source · abstract, characters 190–311 · show in text ↑
e1

“both vermicompost and manure produced significant increases in plant growth and marketable yield, and also affected the chemical composition and quality of the marketable ear”

✓ located verbatim in the source · abstract, characters 979–1153 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Vermicompost affected the chemical composition and quality of the marketable ear of sweet corn.

Taxon
sweet corne0
Treatment
vermicomposte1
Outcome
chemical composition and quality of the marketable eare1

Not reportedComparatorDirection

Verbatim

e0

“In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer”

✓ located verbatim in the source · abstract, characters 190–311 · show in text ↑
e1

“both vermicompost and manure produced significant increases in plant growth and marketable yield, and also affected the chemical composition and quality of the marketable ear”

✓ located verbatim in the source · abstract, characters 979–1153 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Manure affected the chemical composition and quality of the marketable ear of sweet corn.

Taxon
sweet corne0
Treatment
manuree1
Outcome
chemical composition and quality of the marketable eare1

Not reportedComparatorDirection

Verbatim

e0

“In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer”

✓ located verbatim in the source · abstract, characters 190–311 · show in text ↑
e1

“both vermicompost and manure produced significant increases in plant growth and marketable yield, and also affected the chemical composition and quality of the marketable ear”

✓ located verbatim in the source · abstract, characters 979–1153 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Most observed effects of organic fertilizers on sweet corn were genotype-dependent.

Taxon
sweet corne0
Material
sugary1 and shrunken2 mutantse3
Treatment
organic fertilizerse4
Outcome
observed effects of the organic fertilizerse4
Qualifier
genotype-dependente4

Not reportedDirection

Verbatim

e0

“In two field trials, sweet corn plants were grown under (i) a conventional fertilization regime with inorganic fertilizer”

✓ located verbatim in the source · abstract, characters 190–311 · show in text ↑
e3

“Two pairs of nearly isogenic sweet corn hybrids homozygous for sugary1 and shrunken2 mutants were included in the trials”

✓ located verbatim in the source · abstract, characters 582–702 · show in text ↑
e4

“most of the observed effects of the organic fertilizers were genotype-dependent”

✓ located verbatim in the source · abstract, characters 1169–1248 · show in text ↑

fertilization · quality: postharvest · Zea mays (maize)Results differ

24 papers: 16 positive, 8 negative or no effect

15 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

20 papers more in this group

See all 24 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.