Product Overview

Summary: This SOP provides a clear, practical framework for planning, growing and incorporating green manure crops to improve soil health and long-term productivity. It standardises how Australian farms and horticultural businesses select species, manage timing, and integrate green manure into existing rotations for maximum agronomic and economic benefit.

Green manure is a powerful, low-cost tool for building soil structure, fixing nitrogen, suppressing weeds and improving water-holding capacity, but its benefits depend heavily on how and when it is used. Without a clear procedure, businesses often miss the optimal incorporation window, select unsuitable species for their region, or create conflicts with cash crop planting schedules. This Green Manure Utilisation Standard Operating Procedure gives your team a consistent, evidence-based method for planning and implementing green manure crops within Australian growing conditions and regulatory expectations.

The SOP walks through the entire lifecycle of green manure utilisation—from site assessment and species selection through to sowing, management, termination and incorporation. It aligns green manure activities with your existing crop rotations, irrigation plans and nutrient strategies, helping you translate soil health goals into day-to-day operational tasks. By formalising this process, you reduce reliance on individual knowledge, support better record-keeping for certification schemes (including organic and environmental programs), and create a repeatable system that improves soil performance, crop resilience and long-term profitability.

Key Benefits

• Improve soil structure, organic matter and biological activity to support healthier, higher-yielding crops.
• Optimise timing of sowing and incorporation to maximise nitrogen fixation and biomass production.
• Standardise green manure planning across blocks and seasons, reducing ad‑hoc decision making.
• Integrate green manure into crop rotations to reduce reliance on synthetic fertilisers and herbicides.
• Support compliance with organic, environmental and sustainability certification requirements through clear records and procedures.

Who is this for?

• Farm Managers
• Horticulture Managers
• Viticulturists
• Orchard Managers
• Broadacre Cropping Managers
• Market Garden Operators
• Agronomists and Farm Consultants
• Regenerative Agriculture Practitioners
• Nursery Production Managers
• Sustainability and Environmental Managers

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Key Terms (Green Manure, Cover Crops, Biomass, Incorporation)
• 3.0 Roles and Responsibilities (Managers, Operators, Agronomists)
• 4.0 Site and Soil Assessment Requirements
• 5.0 Species Selection Criteria (Climate, Soil Type, Rotation, Pest/Weed Considerations)
• 6.0 Planning and Scheduling (Rotation Planning, Fallow Windows, Equipment Availability)
• 7.0 Seedbed Preparation and Sowing Procedure
• 8.0 Irrigation and In‑Crop Management of Green Manure Stands
• 9.0 Termination and Incorporation Methods (Mowing, Slashing, Rolling, Cultivation)
• 10.0 Integration with Nutrient Management and Fertiliser Programs
• 11.0 Weed, Pest and Disease Considerations Related to Green Manure Use
• 12.0 Environmental and Sustainability Considerations (Erosion Control, Groundcover Targets)
• 13.0 Record-Keeping and Documentation Requirements
• 14.0 Monitoring, Evaluation and Continuous Improvement
• 15.0 References, Supporting Guidelines and Related Farm Procedures

Legislation & References

• Model Work Health and Safety Act and Regulations (for general farm operations and plant use)
• AS 4454: Composts, soil conditioners and mulches
• Freshcare Environmental Code of Practice (where applicable)
• National Standard for Organic and Bio-Dynamic Produce (where organic certification is sought)
• State-based Biosecurity and Noxious Weeds legislation (varies by jurisdiction)