Abstract
Humic acid can neutralize soil pH, adsorb plant nutrients and clay as well as balance cations, thereby increasing the stability of soil aggregates, plant uptake and yield. Sources and doses of humic acid have been estimated for the efficiency of cation absorption. This experiment aimed to examine the effectiveness of various organic matter sources and humic acid doses on nutrients availability. We prepared greenhouse experiments according to factorial random block design (RBD). The first factor was three organic matters: compost, manure and coal, and the second factor was six doses of humic acid: 0, 0.5, 1.0, 1.5, 2.0 and 2.5 g/kg. We evaluated the effectiveness of humic acid to change soil salinity, pH, electric conductivity, cation exchange, permeability, aggregate stability and plant growth. The experimental results showed that humic acid from peat increased plant biomass weight, plant roots, grain number of tillers and chlorophyll content more than others. Humic acid efficiently can improve rice yields 10–20% supported by the suitability of soil pH, nutrient availability and soil salinity.
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Claims 5
Claim · model-written summary
Humic acid from peat increased plant biomass weight and plant roots more than other sources.
- Taxon
- rice
Oryza sativat0 - Treatment
- humic acid from peate0
- Outcome
- plant biomass weight, plant rootse0
- Direction
- increasede0
- Comparator
- otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid from peat increased plant biomass weight, plant roots, grain number of tillers and chlorophyll content more than others”
t0“rice”
Claim · model-written summary
Humic acid from peat increased grain number of tillers more than other sources.
- Taxon
- riceOryza sativat0
- Treatment
- humic acid from peate0
- Outcome
- grain number of tillerse0
- Direction
- increasede0
- Comparator
- otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid from peat increased plant biomass weight, plant roots, grain number of tillers and chlorophyll content more than others”
t0“rice”
Claim · model-written summary
Humic acid from peat increased chlorophyll content more than other sources.
- Taxon
- riceOryza sativat0
- Treatment
- humic acid from peate0
- Outcome
- chlorophyll contente0
- Direction
- increasede0
- Comparator
- otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid from peat increased plant biomass weight, plant roots, grain number of tillers and chlorophyll content more than others”
t0“rice”
Claim · model-written summary
Humic acid can improve rice yields by 10–20%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Humic acid efficiently can improve rice yields 10–20% supported by the suitability of soil pH, nutrient availability and soil salinity”
Claim · model-written summary
Suitable soil pH, nutrient availability and soil salinity support the rice yield improvement from humic acid.
- Taxon
- riceOryza sativae0
- Outcome
- rice yieldse0
- Qualifier
- the suitability of soil pH, nutrient availability and soil salinitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Humic acid efficiently can improve rice yields 10–20% supported by the suitability of soil pH, nutrient availability and soil salinity”
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