Abstract
Abstract Vegetables are essential components in human diets because they are rich in vitamins, minerals, and dietary fibre. There is a growing interest in human nutrition enhancement through vegetable consumption to reduce micro mineral deficiencies, especially in households with low buying power. A greenhouse pot experiment was conducted to evaluate the effect of zeolite amendment on the mineral composition of cabbage ( Brassica oleracea var. capitata L.), in relation to the soil chemical status. The experiment was carried out over two growing seasons (winter/spring) of 2018 and 2019. The treatments were in the ratios of 0:10, 1:9, 2:8, 3:7 zeolite to sandy soil, on a weight-to-weight basis. Zeolite improved soil chemical status ( p < 0.05), except for soil iron (Fe) and phosphorus (P) contents. There was also a general improvement of macro minerals in cabbage with increased zeolite application, especially in the second season. Zeolite did not improve the micronutrients of the vegetable. This indicates that cabbage planted under zeolite amended soils provides no additional contribution to the fight against micronutrient deficiencies. However, zeolite showed potential for soil conditioning in soil macronutrients and soil pH.
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Claims 3
Claim · model-written summary
Zeolite amendment improved soil chemical status, except for soil iron and phosphorus contents.
- Taxon
- cabbage
Brassica oleracea var. capitatae0 - Treatment
- zeolite amendmente0
- Outcome
- soil chemical statuse2
- Direction
- improvede2
- Qualifier
- except for soil iron (Fe) and phosphorus (P) contentse2
- Setting
- greenhouse pot experimente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of zeolite amendment on the mineral composition of cabbage ( Brassica oleracea var. capitata L.)”
e1“A greenhouse pot experiment was conducted”
e2“Zeolite improved soil chemical status ( p < 0.05), except for soil iron (Fe) and phosphorus (P) contents”
Claim · model-written summary
Increased zeolite application generally improved macro minerals in cabbage, especially in the second season.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- increased zeolite applicatione3
- Outcome
- macro mineralse3
- Direction
- improvemente3
- Qualifier
- especially in the second seasone3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of zeolite amendment on the mineral composition of cabbage ( Brassica oleracea var. capitata L.)”
e3“There was also a general improvement of macro minerals in cabbage with increased zeolite application, especially in the second season”
Claim · model-written summary
Zeolite did not improve the micronutrients of cabbage.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- Zeolitee4
- Outcome
- micronutrientse4
- Direction
- did not improvee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of zeolite amendment on the mineral composition of cabbage ( Brassica oleracea var. capitata L.)”
e4“Zeolite did not improve the micronutrients of the vegetable”
The same questions in other papers
other · molecular: metabolites · Brassica oleracea (wild cabbage)Positive and negative results
9 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 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.