Abstract
Rice has a vital role in food security but the production is limited in infertile and degraded soils. Rice is cultivated on acid sulphate soil in the coastal area of Peninsular Malaysia. Soil amendment using biological charcoal (biochar) increases the soil fertility. Thus, empty fruit bunch biochar (EFBB) was applied in a pot experiment under a controlled environment using an organic system of rice intensification (SRI) practice and its effects on the floodwater pH, acid sulphate soil properties and growth performance of rice and yield of rice MR219 were preliminarily investigated. EFBB increased grain yield by 141 to 472%. Plant growth and yield parameters in EFBB amended soils were significantly higher than in soil without biochar. The number of tillers increased significantly with the increase in biochar applied; 28 tillers were produced in the control, while up to 80 tillers were produced in the plots applied 40 t ha–1 EFBB. Moreover, the decline of Al3+ in flood water indicated that EFBB mitigated Al3+ toxicity. Soil water pH increased from 3.5 to 6 with increasing EFBB application rates. The grain yield was linearly correlated to the application rate of EFBB. This pot study demonstrates that the application of EFBB combined with organic fertilization and intermittent irrigation has the potential to improve rice yield on acid sulphate soil. Further study in the field is warranted to determine the effect of EFBB on large scale rice production.
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Claims 7
Claim · model-written summary
Biochar increased grain yield by 141 to 472%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EFBB increased grain yield by 141 to 472%.”
t0“Yield Components of Rice”
Claim · model-written summary
Biochar raised plant growth and yield parameters relative to untreated soil.
- Taxon
- Rice
Oryza sativat0 - Treatment
- EFBB amended soilse0
- Outcome
- Plant growth and yield parameterse0
- Direction
- highere0
- Comparator
- soil without biochare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth and yield parameters in EFBB amended soils were significantly higher than in soil without biochar.”
t0“Yield Components of Rice”
Claim · model-written summary
Tiller count increased with biochar rate from 28 to 80.
- Taxon
- RiceOryza sativat0
- Treatment
- 40 t ha–1 EFBBe0
- Outcome
- number of tillerse0
- Direction
- increasede0
- Value
- 80 tillerse0
- Qualifier
- 28 tillerse0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of tillers increased significantly with the increase in biochar applied; 28 tillers were produced in the control, while up to 80 tillers were produced in the plots applied 40 t ha–1 EFBB.”
t0“Yield Components of Rice”
Claim · model-written summary
Biochar lowered floodwater aluminum.
- Taxon
- RiceOryza sativat0
- Treatment
- EFBBe0
- Outcome
- Al3+ in flood watere0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decline of Al3+ in flood water indicated that EFBB mitigated Al3+ toxicity.”
t0“Yield Components of Rice”
Claim · model-written summary
Biochar rate raised soil water pH from 3.5 to 6.
- Taxon
- RiceOryza sativat0
- Treatment
- EFBB application ratese0
- Outcome
- Soil water pHe0
- Direction
- increasede0
- Value
- 3.5 to 6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil water pH increased from 3.5 to 6 with increasing EFBB application rates.”
t0“Yield Components of Rice”
Claim · model-written summary
Grain yield correlated linearly with biochar rate.
- Taxon
- RiceOryza sativat0
- Treatment
- application rate of EFBBe0
- Outcome
- grain yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield was linearly correlated to the application rate of EFBB.”
t0“Yield Components of Rice”
Claim · model-written summary
Authors conclude EFBB with organic fertilization and intermittent irrigation may improve rice yield on acid sulphate soil.
- Taxon
- RiceOryza sativat0
- Treatment
- EFBB combined with organic fertilization and intermittent irrigatione0
- Outcome
- improve rice yield on acid sulphate soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of EFBB combined with organic fertilization and intermittent irrigation has the potential to improve rice yield on acid sulphate soil.”
t0“Yield Components of Rice”
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