Abstract
Biochar is a carbon-rich solid material derived from the pyrolysis of agricultural residue biomass, which takes longer to decompose than the raw material biomass. Biochar has been observed to have agronomic benefits. Because of its persistence in the soil, biochar has the potential to extend its agronomic benefits. The purpose of this study was to obtain evidence that biochar has a longer effect so that its residual effect can increase the growth and yield of soybean. A series of pot experiments which included 4 consecutive plantings were carried out. The treatments consisting of: control; rice husk biochar (RHB) 20 ton.ha-1; RHB 40 ton.ha-1; RHB 50 ton.ha-1; RHB 60 ton.ha-1; RHB 10 ton.ha-1 + chicken manure (CM) 10 ton.ha-1; RBH 20 ton.ha-1 + CM 20 ton.ha-1; RHB 30 ton.ha-1 + CM 30 ton.ha-1. The treatments were applied to the first planting of the series experiment (September-December 2018). To determine the residual effect of the treatments, the second experiment was carried out in February-June 2019 with planting aerobic rice plants, third experiment in March-June 2020 with soybeans plant, and fourth experiment in July-October 2020 with soybean plants. The results showed that the effect of residual rice husk biochar did not significantly increase growth and soybean yields in the 3rd and 4th planting.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-sa. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 1
Claim · model-written summary
Residual rice husk biochar did not significantly increase growth and yield of soybean in the 3rd and 4th plantings.
- Taxon
- soybean
Glycine maxe1 - Treatment
- residual rice husk biochare1
- Outcome
- growth and soybean yieldse1
- Direction
- increasee1
- Comparator
- controle2
- Setting
- pot experimentse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed that the effect of residual rice husk biochar did not significantly increase growth and soybean yields in the 3rd and 4th planting”
e2“The treatments consisting of: control; rice husk biochar (RHB) 20 ton.ha-1”
e3“A series of pot experiments which included 4 consecutive plantings were carried out”
The same questions in other papers
Oryza sativa · yield · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 20 in the opposite direction
- positive
- positive
- positive
20 papers more in this group
See all 24 papers →biochar · yield · Glycine max (soybean)Results differ
4 papers in the same direction as this paper · 60 in the opposite direction
- positive
- positive
- positive
61 papers more in this group
See all 65 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.