Abstract
The use of basalt rock powder associated with an organic fertilizer with compost can be an option to reduce the use of soluble fertilizers. Thus, this study aimed to evaluate the effect of organic compost and basalt rock powder on the agronomic traits of the corn crop and on the levels of nutrients available in the soil solution, with two additional treatments of fertilization with NPK. The experimental design used was completely randomized blocks, in a factorial scheme (5x2) + 2, with two additional and four replications. The first factor consisted of five doses of organic compost (0, 4, 6, 8 and 10 t ha-1) and the second factor, with and without basalt rock dust (0 and 8 t ha-1). The additional treatment consisted of the application of 150 kg ha-1 of formulated NPK (10-15-15), equivalent to ½ of the recommended dose for the crop, associated with 8 t ha-1 of basalt rock powder and the second additional treatment consisted in the application of 300 kg ha-1 of formulated 10-15-15 of NPK and without rock dust. The agronomic characteristics of corn and the nutrient contents in the soil solution were evaluated. The results showed that the use of organic compost associated with rock dust promoted soil chemical improvements, especially pH elevation and calcium content increase. There was no effect of organic compost with rock powder on the agronomic characteristics of corn evaluated. The use of chemical fertilizer of an NPK formulation improved the corn crop compared to the use of organic compost and rock dust. The application of 8 t ha-1 of basalt rock powder, associated with 150 kg ha-1 of a formulated NPK improved the development of the corn crop compared to the use of 300 kg ha-1.
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Claims 4
Claim · model-written summary
Organic compost with basalt rock dust improved soil chemistry, especially raising pH and calcium content.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- organic compost associated with rock duste0
- Outcome
- soil chemical improvements, especially pH elevation and calcium content increasee0
- Direction
- elevatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of organic compost associated with rock dust promoted soil chemical improvements, especially pH elevation and calcium content increase”
t0“corn”
Claim · model-written summary
Organic compost with rock powder had no effect on the evaluated agronomic characteristics of corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- organic compost with rock powdere0
- Outcome
- agronomic characteristicse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no effect of organic compost with rock powder on the agronomic characteristics of corn evaluated”
Claim · model-written summary
NPK chemical fertilizer improved the corn crop compared with organic compost and rock dust.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- chemical fertilizer of an NPK formulatione0
- Outcome
- corn crope0
- Direction
- improvede0
- Comparator
- organic compost and rock duste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of chemical fertilizer of an NPK formulation improved the corn crop compared to the use of organic compost and rock dust”
Claim · model-written summary
8 t/ha basalt rock powder with 150 kg/ha NPK improved corn development compared with 300 kg/ha NPK.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- 8 t ha-1 of basalt rock powder, associated with 150 kg ha-1 of a formulated NPKe0
- Outcome
- development of the corn crope0
- Direction
- improvede0
- Comparator
- 300 kg ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 8 t ha-1 of basalt rock powder, associated with 150 kg ha-1 of a formulated NPK improved the development of the corn crop compared to the use of 300 kg ha-1”
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