Compost supplementation with nutrients and microorganisms in composting process

Area of Science:

• Agricultural Science
• Environmental Microbiology
• Soil Science

Background:

• Composting transforms organic materials into stable compost, improving soil properties.
• Current compost limitations include slow nutrient release and low nutrient content for crops.
• Enhancing compost nutrient bioavailability is crucial for sustainable agriculture.

Purpose of the Study:

• To review nutrient supplementation strategies for compost.
• To examine the role of microorganisms in nutrient transformation during composting.
• To identify research trends for nutrient-enriched compost bio-inputs.

Main Methods:

• Literature review of compost supplementation and microbial roles.
• Analysis of strategies for nitrogen, phosphorus, and potassium enrichment.
• Description of key microbial groups and identification methods in composting.

Main Results:

• Compost supplementation and microbial inoculation can enhance nutrient content and plant availability.
• Specific microorganisms aid in nitrogen fixation, ammonia oxidation, and phosphorus/potassium solubilization.
• Effective nitrogen conservation strategies during composting are presented.

Conclusions:

• Nutrient-enriched compost, developed through supplementation and microbial strategies, offers improved agricultural bio-inputs.
• Further research is needed in microbial isolation, gene identification, and nutrient conversion processes.
• Optimizing compost for enhanced nutrient delivery requires integrated approaches in feedstock selection and microbial management.