Abstract
Research on soil biochar fertilization has mainly been conducted on cereal crops, and information on its potential for radish production remains inconsistent. Therefore, a pot experiment was conducted to examine the short-term effects of rice husk biochar on radish growth and nitrogen use efficiency (NUE). An investigation was conducted with two application rates of biochar alone, (10 t ha−1 (B10) and 25 t ha−1 (B25), and biochar + chicken manure application with and without NPK fertilizer. The results indicated that the application of biochar 25 t ha−1 + chicken manure (B25:CHM) and the combination of biochar 25 t ha−1 + chicken manure + NPK fertilizer (B25:CHM:NPK) significantly increased root yield by improving NUE, fertilizer recovery efficiency (REN), agronomic efficiency (AE), nitrogen harvest index (NHI), and retaining soil NH4+-N. Although biochar application alone did not significantly influence radish growth on a short-term basis, B10 and B25 increased root yields by 10% and 20%, respectively, compared with the control. Notably, the role of biochar application when combined with organic and inorganic fertilizers was to retain fertilizer N and promote N uptake efficiency by radishes, as higher rates of biochar resulted in higher NUE. Our results suggest that B25:CHM is a suitable combination for organic farming.
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Claims 7
Claim · model-written summary
biochar 25 t ha−1 + chicken manure (B25:CHM) significantly increased radish root yield.
- Taxon
- Radish
Raphanus sativust0 - Treatment
- biochar 25 t ha−1 + chicken manure (B25:CHM)e0
- Outcome
- root yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Radish”
e0“the application of biochar 25 t ha−1 + chicken manure (B25:CHM) and the combination of biochar 25 t ha−1 + chicken manure + NPK fertilizer (B25:CHM:NPK) significantly increased root yield by improving NUE, fertilizer recovery efficiency (REN), agronomic efficiency (AE), nitrogen harvest index (NHI), and retaining soil NH4+-N”
Claim · model-written summary
biochar 25 t ha−1 + chicken manure + NPK fertilizer (B25:CHM:NPK) significantly increased radish root yield.
- Taxon
- Radish
Raphanus sativust0 - Treatment
- biochar 25 t ha−1 + chicken manure + NPK fertilizer (B25:CHM:NPK)e0
- Outcome
- root yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Radish”
e0“the application of biochar 25 t ha−1 + chicken manure (B25:CHM) and the combination of biochar 25 t ha−1 + chicken manure + NPK fertilizer (B25:CHM:NPK) significantly increased root yield by improving NUE, fertilizer recovery efficiency (REN), agronomic efficiency (AE), nitrogen harvest index (NHI), and retaining soil NH4+-N”
Claim · model-written summary
Biochar alone did not significantly influence short-term radish growth.
- Taxon
- Radish
Raphanus sativust0 - Treatment
- biochar application alonee0
- Outcome
- radish growthe0
- Direction
- did not significantly influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Radish”
e0“biochar application alone did not significantly influence radish growth on a short-term basis”
Claim · model-written summary
B10 increased radish root yield by 10% over control.
- Taxon
- Radish
Raphanus sativust0 - Treatment
- B10e0
- Outcome
- root yieldse0
- Direction
- increasede0
- Value
- 10%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Radish”
e0“B10 and B25 increased root yields by 10% and 20%, respectively, compared with the control”
Claim · model-written summary
B25 increased radish root yield by 20% over control.
- Taxon
- Radish
Raphanus sativust0 - Treatment
- B25e0
- Outcome
- root yieldse0
- Direction
- increasede0
- Value
- 20%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Radish”
e0“B10 and B25 increased root yields by 10% and 20%, respectively, compared with the control”
Claim · model-written summary
Higher biochar rates gave higher radish nitrogen use efficiency.
- Taxon
- Radish
Raphanus sativust0 - Treatment
- higher rates of biochare0
- Outcome
- NUEe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Radish”
e0“higher rates of biochar resulted in higher NUE”
Claim · model-written summary
The authors recommend B25:CHM for organic farming.
- Taxon
- Radish
Raphanus sativust0 - Outcome
- B25:CHM is a suitable combination for organic farminge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Radish”
e0“B25:CHM is a suitable combination for organic farming”
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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.