Abstract
Effect of magnesium chloride (MgCl2) and dolomite on magnesium (Mg) availability cassava was observed by a pot experiment under greenhouse condition in three Paleustults. Their water solubilities varied greatly, with increased Mg availability in the soils. This resulted in cassava taking up more Mg and producing 23.3–45.2% and 18.8–26.2% greater aboveground biomass over the control when respective MgCl2 and dolomite were added. Without Mg fertilization, Mg contents, mainly in a component of minerals, were low and constant throughout 120 days of the study, indicating that initial Mg content in these soils was insufficient for cassava growth. Magnesium became available at 1-month after dolomite was applied. Magnesium in MgCl2-added soil was predominated by available Mg; moreover, MgCl2 evidently boosted the soluble Mg portion within 15 days after applying. After that, the proportion decreased similarly to that of the other treatments. It indicated that dolomite was a better Mg source in supplying Mg for a longer period than MgCl2. In addition, the Mg contents in the soils gradually increased early and then sharply decreased at 30 days, and then the contents were constant until the end of the study. The result clearly signified that cassava absorbed Mg rapidly within 1.5 months after planting. Among soil extractants tested in the study, 0.05 M HCl was the best available Mg extraction suitable for cassava crop, whereas 1 M NH4OAc, the routine soil test in Thailand, was the least suited extractant.
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Claims 11
Claim · model-written summary
Water solubility of MgCl2 and dolomite varied greatly, with increased Mg availability in the soils.
- Taxon
- Cassava
Manihot esculentat0 - Treatment
- magnesium chloride (MgCl2) and dolomitee0
- Outcome
- Mg availabilitye1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e0“Effect of magnesium chloride (MgCl2) and dolomite on magnesium (Mg) availability cassava was observed by a pot experiment under greenhouse condition in three Paleustults”
e1“Their water solubilities varied greatly, with increased Mg availability in the soils”
Claim · model-written summary
MgCl2 addition gave cassava 23.3–45.2% greater aboveground biomass than the control under greenhouse conditions.
- Taxon
- CassavaManihot esculentat0
- Treatment
- MgCl2e2
- Outcome
- aboveground biomasse2
- Direction
- greatere2
- Value
- 23.3–45.2%e2
- Comparator
- controle2
- Setting
- greenhouse conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e0“Effect of magnesium chloride (MgCl2) and dolomite on magnesium (Mg) availability cassava was observed by a pot experiment under greenhouse condition in three Paleustults”
e2“cassava taking up more Mg and producing 23.3–45.2% and 18.8–26.2% greater aboveground biomass over the control when respective MgCl2 and dolomite were added”
Claim · model-written summary
Dolomite addition gave cassava 18.8–26.2% greater aboveground biomass than the control under greenhouse conditions.
- Taxon
- CassavaManihot esculentat0
- Treatment
- dolomitee2
- Outcome
- aboveground biomasse2
- Direction
- greatere2
- Value
- 18.8–26.2%e2
- Comparator
- controle2
- Setting
- greenhouse conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e0“Effect of magnesium chloride (MgCl2) and dolomite on magnesium (Mg) availability cassava was observed by a pot experiment under greenhouse condition in three Paleustults”
e2“cassava taking up more Mg and producing 23.3–45.2% and 18.8–26.2% greater aboveground biomass over the control when respective MgCl2 and dolomite were added”
Claim · model-written summary
Without Mg fertilization, Mg contents were low and constant over 120 days.
- Taxon
- CassavaManihot esculentat0
- Outcome
- Mg contentse3
- Qualifier
- low and constant throughout 120 dayse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e3“Without Mg fertilization, Mg contents, mainly in a component of minerals, were low and constant throughout 120 days of the study, indicating that initial Mg content in these soils was insufficient for cassava growth”
Claim · model-written summary
Soil Mg contents gradually increased early, sharply decreased at 30 days, and were constant until the end of the study.
- Taxon
- CassavaManihot esculentat0
- Outcome
- Mg contents in the soilse5
- Qualifier
- sharply decreased at 30 dayse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e5“the Mg contents in the soils gradually increased early and then sharply decreased at 30 days”
e6“then the contents were constant until the end of the study”
Claim · model-written summary
Magnesium became available 1 month after dolomite was applied.
- Taxon
- CassavaManihot esculentat0
- Outcome
- Magnesium became availablee4
- Qualifier
- at 1-month after dolomite was appliede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e4“Magnesium became available at 1-month after dolomite was applied”
Claim · model-written summary
MgCl2 evidently boosted the soluble Mg portion within 15 days after application.
- Taxon
- CassavaManihot esculentat0
- Treatment
- MgCl2e5
- Outcome
- soluble Mg portione5
- Direction
- boostede5
- Qualifier
- within 15 days after applyinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e5“MgCl2 evidently boosted the soluble Mg portion within 15 days after applying”
Claim · model-written summary
Dolomite was a better Mg source than MgCl2 for supplying Mg over a longer period.
- Taxon
- CassavaManihot esculentat0
- Treatment
- dolomitee6
- Outcome
- supplying Mg for a longer periode6
- Direction
- bettere6
- Comparator
- MgCl2e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e6“dolomite was a better Mg source in supplying Mg for a longer period than MgCl2”
Claim · model-written summary
Cassava absorbed Mg rapidly within 1.5 months after planting.
- Taxon
- CassavaManihot esculentat0
- Outcome
- absorbed Mg rapidlye7
- Qualifier
- within 1.5 months after plantinge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e7“cassava absorbed Mg rapidly within 1.5 months after planting”
Claim · model-written summary
0.05 M HCl was the best available Mg extractant for cassava, better than 1 M NH4OAc.
- Taxon
- cassavaManihot esculentat0
- Treatment
- 0.05 M HCle5
- Outcome
- best available Mg extractione5
- Direction
- beste5
- Comparator
- 1 M NH4OAce5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e5“0.05 M HCl was the best available Mg extraction suitable for cassava crop, whereas 1 M NH4OAc, the routine soil test in Thailand, was the least suited extractant”
Claim · model-written summary
1 M NH4OAc, the routine soil test in Thailand, was the least suited Mg extractant for cassava.
- Taxon
- cassavaManihot esculentat0
- Treatment
- 1 M NH4OAce5
- Outcome
- least suited extractante5
- Direction
- least suitede5
- Comparator
- 0.05 M HCle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Its Availability in Cassava in Tropical Upland Soils”
e5“0.05 M HCl was the best available Mg extraction suitable for cassava crop, whereas 1 M NH4OAc, the routine soil test in Thailand, was the least suited extractant”
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