Claim · model-written summary
Increased growth of maize due to HA addition may be associated with the improved biochemical environment of the soil.
- Treatment
- HA additione2
- Outcome
- growth of maizee2
- Direction
- increasese2
- Qualifier
- may be associated with the improved biochemical environment of the soile2
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE PLANTS”
e2“Results suggest that increases in growth of maize due to HA addition may be associated with the improved biochemical environment of the soil”
Title
EFFECT OF DIFFERENT LEVELS OF LIGNITIC COAL DERIVED HUMIC ACID ON GROWTH OF MAIZE PLANTS
M. Sharif; Riaz A. Khattak; M. S. Sarir Communications in Soil Science and Plant Analysis 2002. doi:10.1081/css-120015906
Other claims from this paper (14)
- Intervention effect Addition of 50 and 100 mg kg−1 HA significantly increased shoot dry weight of maize by 20 and 23% relative to control.
- Intervention effect Addition of 50 and 100 mg kg−1 HA significantly increased root dry weight of maize by 39 and 32% relative to control.
- Intervention effect HA above 50 and 100 mg kg−1 had no significant effect on maize yield.
- Intervention effect HA treatments improved soil organic matter content slightly, by 7 to 14%.
- Intervention effect HA treatments decreased soil pH by 0.2 to 0.3 unit.
- Intervention effect Addition of HA significantly increased soil N concentration and plant N accumulation over control.
- Intervention effect Different levels of HA applied showed no significant differences in soil N concentration and plant N accumulation.
- Intervention effect Addition of 200 mg kg−1 HA significantly improved soil P concentration.
- Intervention effect Plant P accumulation of maize was not significantly affected by different levels of HA.
- Intervention effect Application of HA nonsignificantly increased soil micronutrient concentrations and their accumulation by maize.
- Intervention effect Addition of 0.5 and 1.0 kg ha−1 HA promoted soil CO2 evolution in a laboratory incubation.
- Intervention effect Addition of 0.5 and 1.0 kg ha−1 HA increased soil bacterial population by 355% to 476%.
- Intervention effect Addition of 0.5 and 1.0 kg ha−1 HA increased soil fungi by 610 to 716%.
- Intervention effect Addition of 0.5 and 1.0 kg ha−1 HA increased cation exchange capacity of the soil by 13.8 to 28.9%.