Abstract
Most agricultural areas of Russia have soils poor in mineral selenium, causing higher oncology risks for population of such areas. The way to control malignancy incidence is selenium fortification of soils and plants. This can be achieved by agrochemical enrichment of cultivated plants with nutritive substrates containing essential minerals and trace elements. The current study aimed to assay the effect of inorganic selenium on the rate of Chinese pakchoi cabbage biomass gain for the development of agrochemical techniques for introducing selenium. The optimal selenium introduction technique would demonstrate the best balance of biomass gain rate and selenium ion accumulation in organic matter. Selenium ion accumulation dynamic was assessed during controlled growth of plants in soils enriched with nutritive substrate containing inorganic selenium (potassium selenite). The amount of selenium in plants was determined by spectroscopy. Mathematical functions describing the selenium uptake dynamic of controlled grown plants have been found, including derivatives of these functions that led to obtaining the numerical values of the respective uptake rates. It has been found that agricultural techniques that involve introduction of selenium at intermediate and late stages of cultivation are optimal for plant growth dynamic, as introducing selenium at early stages of cultivation has a negative impact on biomass uptake rates. Additionally, introducing potassium selenite to the nutritive substrate at 1.0 mg×dm–3 proved to be more effective than introducing potassium selenite at 0.5 mg×dm–3 as the former dosage led to a better plant growth dynamic.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 4
Claim · model-written summary
Functions described selenium uptake dynamics and yielded numerical uptake rates.
- Taxon
- Chinese cabbage
Brassica rapa subsp. pekinensist0 - Outcome
- selenium uptake dynamice0
- Value
- numerical valuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mathematical functions describing the selenium uptake dynamic of controlled grown plants have been found, including derivatives of these functions that led to obtaining the numerical values of the respective uptake rates.”
t0“Chinese cabbage”
Claim · model-written summary
Early selenium introduction negatively affected biomass uptake rates.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Treatment
- introducing selenium at early stages of cultivatione0
- Outcome
- biomass uptake ratese0
- Direction
- negative impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introducing selenium at early stages of cultivation has a negative impact on biomass uptake rates”
t0“Chinese cabbage”
Claim · model-written summary
Intermediate and late selenium introduction were judged optimal for growth dynamics.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Outcome
- introduction of selenium at intermediate and late stages of cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“agricultural techniques that involve introduction of selenium at intermediate and late stages of cultivation are optimal for plant growth dynamic”
t0“Chinese cabbage”
Claim · model-written summary
Potassium selenite at 1.0 mg×dm–3 produced better plant growth dynamics than 0.5 mg×dm–3.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Treatment
- introducing potassium selenite to the nutritive substrate at 1.0 mg×dm–3e0
- Outcome
- plant growth dynamice0
- Direction
- bettere0
- Comparator
- introducing potassium selenite at 0.5 mg×dm–3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introducing potassium selenite to the nutritive substrate at 1.0 mg×dm–3 proved to be more effective than introducing potassium selenite at 0.5 mg×dm–3 as the former dosage led to a better plant growth dynamic”
t0“Chinese cabbage”
The same questions in other papers
selenium atom · growth · Brassica rapa (field mustard)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →potassium · growth · Brassica rapa (field mustard)Results differ
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 papers →growing medium · growth · Brassica rapa (field mustard)Positive and negative results
8 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
9 papers more in this group
See all 13 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.