Abstract
Abstract The paper addresses the effect of a compost prepared from tobacco wastes with an admixture of bark and straw on the enzymatic activity and certain chemical properties of a grey-brown podzolic soil amended with that compost. The study was conducted under the conditions of a pot experiment in which the soil material was collected from the surface horizon of the grey-brown podzolic soil. The effect of the application of the compost was compared with soil without such amendment. The test plant was maize cv. Kosmo 230. Fertilisation of the light soil with the compost studied caused changes in the enzymatic activity of the soil that were related both to the dose of the compost and to the kind of enzyme studied. With increase in the dose of the compost there was an increase in dehydrogenase activity (highest dose) and a significant decrease in the activity of acid phosphatase. Moreover, it was observed that tobacco compost was a significant source that enriched the light soil in organic matter, total nitrogen, and available forms of phosphorus, magnesium and potassium, which was evident in increased yields of maize grown as the test plant. Significant correlations were also demonstrated between a majority of the biochemical and chemical parameters, which indicates that those parameters characterise well the biological properties of a grey-brown podzolic soil amended with tobacco compost.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 5
Claim · model-written summary
Compost increased soil dehydrogenase activity at the highest dose.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increase in the dose of the compost there was an increase in dehydrogenase activity (highest dose)”
t0“Tobacco Wastes”
e1“The test plant was maize cv. Kosmo 230.”
Claim · model-written summary
Compost dose significantly decreased soil acid phosphatase activity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increase in the dose of the compost there was an increase in dehydrogenase activity (highest dose) and a significant decrease in the activity of acid phosphatase.”
t0“Tobacco Wastes”
e1“The test plant was maize cv. Kosmo 230.”
Claim · model-written summary
Tobacco compost enriched soil organic matter, total nitrogen, phosphorus, magnesium and potassium.
- Treatment
- tobacco composte0
- Outcome
- organic matter, total nitrogen, and available forms of phosphorus, magnesium and potassiume0
- Direction
- enrichede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco compost was a significant source that enriched the light soil in organic matter, total nitrogen, and available forms of phosphorus, magnesium and potassium”
t0“Tobacco Wastes”
e1“The test plant was maize cv. Kosmo 230.”
Claim · model-written summary
Tobacco compost increased maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco compost was a significant source that enriched the light soil in organic matter, total nitrogen, and available forms of phosphorus, magnesium and potassium, which was evident in increased yields of maize grown as the test plant.”
Claim · model-written summary
Most soil biochemical and chemical parameters were significantly correlated.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant correlations were also demonstrated between a majority of the biochemical and chemical parameters”
t0“grey-brown podzolic soil”
e1“The test plant was maize cv. Kosmo 230.”
The same questions in other papers
Nicotiana tabacum · nutrient: content · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
Nicotiana tabacum · yield · Zea mays (maize)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →fertilization · soil: biology · Zea mays (maize)Positive and negative results
72 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- no effect
86 papers more in this group
See all 90 papers →fertilization · nutrient: content · Zea mays (maize)Positive and negative results
1,025 papers in the same direction as this paper · 127 in the opposite direction · 11 reporting no difference from an alternative
- negative
- negative
- negative
1,160 papers more in this group
See all 1,164 papers →fertilization · yield · Zea mays (maize)Positive and negative results
3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative
- negative
- no effect
- negative
3,904 papers more in this group
See all 3,908 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.