Abstract
We have investigated the effectiveness of a new soybean fertilization technique, named crack fertilization, which involves the application of nodule bacteria on biochar to soybean roots through cracks formed between planting rows during midterm tillage. In the present study, the factors and timing of crack fertilization were investigated in an upland field converted from a paddy. The variables investigated were: 1) crack formation without the application of any agricultural materials, and 2) the application of biochar or 3) nodule bacteria on biochar into cracks. The treatment periods were: 1) before sowing, 2) during midterm tillage, and 3) during both periods. The combination of crack fertilization and reduced tillage was also tested. The method of crack fertilization that increased yield was the combination of crack formation and the application of biochar, and the most effective period for the treatment was before sowing in the reduced tillage field. Seed yields in conventional and reduced tillage fields were comparable in the upland field converted from the paddy. These results suggest that the application of biochar into cracks after scratching the soil surface to remove weeds before sowing is a practical method of increasing soybean yield in upland fields converted from paddies.
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Claims 3
Claim · model-written summary
Crack formation with biochar increased soybean yield, most effectively before sowing under reduced tillage.
- Taxon
- soybean
Glycine maxt0 - Treatment
- crack formation and the application of biochare0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- before sowinge0
- Setting
- reduced tillage fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The method of crack fertilization that increased yield was the combination of crack formation and the application of biochar, and the most effective period for the treatment was before sowing in the reduced tillage field.”
t0“soybean”
Claim · model-written summary
Seed yields were comparable between conventional and reduced tillage fields.
- Taxon
- soybeanGlycine maxt0
- Treatment
- reduced tillage fieldse0
- Outcome
- Seed yieldse0
- Direction
- comparablee0
- Comparator
- conventionale0
- Setting
- upland field converted from the paddye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yields in conventional and reduced tillage fields were comparable in the upland field converted from the paddy.”
t0“soybean”
Claim · model-written summary
The authors recommend putting biochar into cracks before sowing to increase soybean yield.
- Taxon
- soybeanGlycine maxe0
- Outcome
- application of biochar into cracks after scratching the soil surface to remove weeds before sowinge0
- Setting
- upland fields converted from paddiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest that the application of biochar into cracks after scratching the soil surface to remove weeds before sowing is a practical method of increasing soybean yield in upland fields converted from paddies.”
The same questions in other papers
biochar · yield · Glycine max (soybean)Results differ
59 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative
- positive
- no effect
- no effect
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See all 65 papers →tillage · yield · Glycine max (soybean)Positive and negative results
125 papers in the same direction as this paper · 264 reporting no difference from an alternative
- positive
- positive
- negative
386 papers more in this group
See all 390 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.