Abstract
Mining drives economic development, but it frequently alters the fertility of remaining soil or substrates. Increasing organic matter in these substrates has been a critical factor for the successful recovery and establishment of plants. In this study, the development of ‘Marandu’ Urochloa brizantha in a Cambisol substrate, a remnant of bauxite mining, was assessed in the municipality of Poços de Caldas-MG, in response to chemical and organic fertilizers derived from vermicomposting of residues from the production of shimeji mushrooms. An experiment was conducted in a greenhouse, where six treatments, namely: conventional fertilizers (FertConv; FertConv + micro and Cal) and exclusively with the use of vermicompost (20, 40 and 60 t ha-1) were evaluated in a completely randomized design in four replications. Fertilization with vermicompost resulted in significant increases in nutrients. Stem and leaf elongation rates, leaf appearance rate, phyllochron, tiller density and dry matter were influenced by both organic and conventional fertilization. However, the greatest benefits were observed with the application of vermicompost. After 90 days of growth, using conventional fertilization, there were no significant increases in the mentioned variables. The use of vermicompost is effective in improving the fertility conditions of the post-mining substrate, with significant impacts on the development of ‘Marandu’ grass, a fact that can contribute to the recovery of areas impacted by mining. Chemical fertilization based only on chemical fertilizers did not result in increases in TAlC, TAlF, TApF, DPP and DM until 90 days of initial growth of ‘Marandu’ grass.
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Claims 9
Claim · model-written summary
Fertilization with vermicompost significantly increased nutrients in the post-mining substrate in a greenhouse experiment.
- Taxon
- Urochloa brizantha
Urochloa brizanthae2 - Treatment
- vermicomposte1
- Outcome
- nutrientse1
- Direction
- increasese1
- Setting
- greenhousee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Fertilization with vermicompost resulted in significant increases in nutrients”
e2“Urochloa brizantha in a Cambisol substrate”
e3“An experiment was conducted in a greenhouse”
Claim · model-written summary
Stem and leaf elongation rates, leaf appearance rate and phyllochron of Marandu grass were influenced by organic and conventional fertilization.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- organic and conventional fertilizatione2
- Outcome
- Stem and leaf elongation rates, leaf appearance rate, phyllochrone2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“Stem and leaf elongation rates, leaf appearance rate, phyllochron, tiller density and dry matter were influenced by both organic and conventional fertilization”
Claim · model-written summary
Tiller density and dry matter of Marandu grass were influenced by organic and conventional fertilization.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- organic and conventional fertilizatione2
- Outcome
- tiller density and dry mattere2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“Stem and leaf elongation rates, leaf appearance rate, phyllochron, tiller density and dry matter were influenced by both organic and conventional fertilization”
Claim · model-written summary
The greatest benefits for Marandu grass development were observed with vermicompost application.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- application of vermicomposte2
- Outcome
- the greatest benefitse2
- Direction
- the greatest benefitse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“the greatest benefits were observed with the application of vermicompost”
Claim · model-written summary
Conventional fertilization gave no significant increases in the measured Marandu grass variables after 90 days of growth.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- conventional fertilizatione2
- Outcome
- the mentioned variablese2
- Direction
- no significant increasese2
- Qualifier
- After 90 days of growthe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“After 90 days of growth, using conventional fertilization, there were no significant increases in the mentioned variables”
Claim · model-written summary
Vermicompost is effective in improving the fertility conditions of the post-mining substrate.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- vermicomposte2
- Outcome
- fertility conditions of the post-mining substratee2
- Direction
- improvinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“The use of vermicompost is effective in improving the fertility conditions of the post-mining substrate”
Claim · model-written summary
Vermicompost had significant impacts on the development of Marandu grass.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- vermicomposte2
- Outcome
- developmente3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“The use of vermicompost is effective in improving the fertility conditions of the post-mining substrate”
e3“with significant impacts on the development of”
Claim · model-written summary
Chemical fertilization based only on chemical fertilizers did not increase TAlC, TAlF and TApF up to 90 days of growth.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- Chemical fertilization based only on chemical fertilizerse2
- Outcome
- TAlC, TAlF, TApFe2
- Direction
- did not result in increasese2
- Qualifier
- until 90 days of initial growthe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“Chemical fertilization based only on chemical fertilizers did not result in increases in TAlC, TAlF, TApF, DPP and DM until 90 days of initial growth”
Claim · model-written summary
Chemical fertilization based only on chemical fertilizers did not increase DPP and DM up to 90 days of growth.
- Taxon
- Urochloa brizanthaUrochloa brizanthae1
- Treatment
- Chemical fertilization based only on chemical fertilizerse2
- Outcome
- DPP and DMe2
- Direction
- did not result in increasese2
- Qualifier
- until 90 days of initial growthe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Urochloa brizantha in a Cambisol substrate”
e2“Chemical fertilization based only on chemical fertilizers did not result in increases in TAlC, TAlF, TApF, DPP and DM until 90 days of initial growth”
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See all 17 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.