Optimizing soil properties, water use efficiency, and crop yield through biochar and organic manure integration in organic soil
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View abstract on PubMed
Summary
This summary is machine-generated.Rice husk biochar and organic manure improve soil health, water use efficiency, and radish yield. Integrated application offers the greatest economic benefits for sustainable agriculture.
Area Of Science
- Agricultural Science
- Soil Science
- Environmental Science
Background
- Sustainable agriculture faces challenges in organic manure decomposition and rice husk waste utilization.
- The synergistic effects of rice husk biochar (B) and organic manure (OM) on soil properties and crop growth in subtropical regions require further investigation.
Purpose Of The Study
- To evaluate the impact of rice husk biochar and organic manure on soil aggregation, aggregate-associated carbon, water use efficiency (WUE), economic benefits, and radish yield.
- To determine the optimal combination of biochar and organic amendments for enhancing soil properties and crop productivity.
Main Methods
- A field study was conducted using sole and combined applications of rice husk biochar (0 and 3 t ha⁻¹), farmyard manure (FYM), and vermicompost (VC) in sandy clay loam soil.
- Measurements included soil aggregation, aggregate-associated carbon, soil moisture, infiltration rate (IR), WUE, radish yield, and economic returns.
Main Results
- Biochar application significantly enhanced macroaggregate stability and aggregate-associated carbon content.
- Soil moisture, infiltration rate, and WUE improved with biochar addition (9.2%, 20.8%, and 13.6%, respectively).
- Combined FYM + VC treatments also showed improved soil properties and WUE. Radish yield increased by 16% with biochar and 30.9% with FYM + VC.
Conclusions
- Integrated application of rice husk biochar (3 t ha⁻¹) and organic manure (FYM + VC) yielded the highest economic benefits (net return ₹138,325 ha⁻¹, B:C ratio 1:5).
- Biochar incorporation into organic management practices significantly improves soil properties and water use efficiency, leading to increased organic radish production.
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