Abstract
Growth studies on TMS 30572, NR8082 and Local cassava cultivars grown on previously crude oil polluted soil were conducted to assess effects of oil palm bunch ash (OPBA), dried poultry manure (DPM) on Leaf pigmentation and N2 status of test crops. In addition, physical and chemical properties of soils were determined. The pH was raised from 5.62±1.50 in control soil to values that ranged between 6.97±1.23 to 9.24±1.89 in soil treated with organic amendment. The result of organic amendment ensures reduction of C: N ratio from 50:1 in control to critical threshold that ranged between 8:1 – 10:1 for improved decomposition and soil quality. SPAD measurement revealed no significance (P≤ 0.05) in readings for both treatments and control experiments. However, the interactive effect of both cassava variety and type of amendments were significant. Cultivar TMS 30572 was found to be brought to high productivity under treatment with combined OPBA + DPM and recorded highest chlorophyll content per unit area of leaf surface with Chl. a/Chl.b ratio of 2.13 and thicker leaf blade. While Leaf chlorophyll is directly associated with the efficiency and capacity of the photosynthetic apparatus and hence chlorophyll content in this study was found to be directly related to good health status of the test crops. Results revealed that quality of crude oil contaminated soil was greatly enhanced by organic amendment.
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Claims 9
Claim · model-written summary
Organic amendment raised soil pH from 5.62±1.50 in control soil to 6.97±1.23 to 9.24±1.89.
- Taxon
- cassava
Manihot esculentat0 - Treatment
- organic amendmente0
- Outcome
- pHe0
- Direction
- raisede0
- Value
- 5.62±1.50 in control soil to values that ranged between 6.97±1.23 to 9.24±1.89e0
- Comparator
- control soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“The pH was raised from 5.62±1.50 in control soil to values that ranged between 6.97±1.23 to 9.24±1.89 in soil treated with organic amendment”
Claim · model-written summary
Organic amendment reduced the soil C:N ratio from 50:1 in control to 8:1 to 10:1.
- Taxon
- cassavaManihot esculentat0
- Treatment
- organic amendmente0
- Outcome
- C: N ratioe0
- Direction
- reductione0
- Value
- 50:1 in control to critical threshold that ranged between 8:1 – 10:1e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“The result of organic amendment ensures reduction of C: N ratio from 50:1 in control to critical threshold that ranged between 8:1 – 10:1”
Claim · model-written summary
SPAD readings showed no significant difference between the treatments and the control.
- Taxon
- cassavaManihot esculentat0
- Treatment
- both treatmentse0
- Outcome
- SPAD measuremente0
- Direction
- no significancee0
- Comparator
- control experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“SPAD measurement revealed no significance (P≤ 0.05) in readings for both treatments and control experiments”
Claim · model-written summary
The interactive effect of cassava variety and type of amendment was significant.
- Taxon
- cassavaManihot esculentae0
- Treatment
- type of amendmentse0
- Outcome
- interactive effecte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the interactive effect of both cassava variety and type of amendments were significant”
Claim · model-written summary
Cultivar TMS 30572 under combined OPBA + DPM recorded the highest chlorophyll content per unit area of leaf surface.
- Taxon
- cassavaManihot esculentat0
- Material
- TMS 30572e0
- Treatment
- combined OPBA + DPMe0
- Outcome
- chlorophyll content per unit area of leaf surfacee0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“Cultivar TMS 30572 was found to be brought to high productivity under treatment with combined OPBA + DPM and recorded highest chlorophyll content per unit area of leaf surface”
Claim · model-written summary
Cultivar TMS 30572 under combined OPBA + DPM had a Chl. a/Chl.b ratio of 2.13.
- Taxon
- cassavaManihot esculentat0
- Material
- TMS 30572e0
- Treatment
- combined OPBA + DPMe0
- Outcome
- Chl. a/Chl.b ratioe0
- Value
- 2.13e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“Cultivar TMS 30572 was found to be brought to high productivity under treatment with combined OPBA + DPM and recorded highest chlorophyll content per unit area of leaf surface with Chl. a/Chl.b ratio of 2.13”
Claim · model-written summary
Cultivar TMS 30572 under combined OPBA + DPM had a thicker leaf blade.
- Taxon
- cassavaManihot esculentat0
- Material
- TMS 30572e0
- Treatment
- combined OPBA + DPMe0
- Outcome
- leaf bladee0
- Direction
- thickere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“Cultivar TMS 30572 was found to be brought to high productivity under treatment with combined OPBA + DPM and recorded highest chlorophyll content per unit area of leaf surface with Chl. a/Chl.b ratio of 2.13 and thicker leaf blade”
Claim · model-written summary
Chlorophyll content was directly related to the good health status of the test crops.
- Taxon
- cassavaManihot esculentat0
- Compound
- chlorophyll contente0
- Outcome
- good health status of the test cropse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“chlorophyll content in this study was found to be directly related to good health status of the test crops”
Claim · model-written summary
Organic amendment greatly enhanced the quality of crude oil contaminated soil.
- Taxon
- cassavaManihot esculentat0
- Treatment
- organic amendmente0
- Outcome
- quality of crude oil contaminated soile0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava (Manihot esculenta crantz)”
e0“quality of crude oil contaminated soil was greatly enhanced by organic amendment”
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3 papers more in this group
See all 7 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.