Sustainable Intensification of Rice Farming Systems

Sustainable intensification of rice farming aims to increase productivity on existing land while reducing environmental impacts and preserving ecosystem services. This approach integrates precision water management, optimised nutrient cycles, enhanced soil health and diversified crop–animal interactions to bolster yield stability and resource‐use efficiency. Central strategies include the System of Rice Intensification (SRI), which emphasises wider plant spacing, intermittent irrigation and active soil aeration; complex rice systems combining rice with fish, ducks or nitrogen‐fixing plants to support nutrient cycling and pest control; and agroecological nutrient management that favours organic amendments and biofertilisers over synthetic inputs. By balancing agronomic innovation with ecological processes, sustainable intensification addresses global food security, greenhouse gas mitigation and resilience to climate extremes, while offering pathways for smallholder livelihoods and equitable food systems.

Research from Nature Portfolio

Recent studies have demonstrated that introducing additional biological components into rice fields markedly enhances both yield and stability under variable weather. In multi‐site trials spanning diverse agroclimatic zones, complex rice systems integrating azolla, fish and ducks achieved the highest reliability index compared with conventional monocultures, displaying superior static and dynamic yield stability across cropping cycles. These findings illustrate how ecosystem‐based intensification can fortify adaptive capacity to extreme rainfall and pest pressure, providing a template for resilient rice production in the face of climate uncertainty.

Sustainable Intensification of Rice Farming Systems publication trend

The graph below shows the total number of articles in sustainable intensification of rice farming systems across all publications each year (not limited to Nature Index journals).

Technical terms

Sustainable intensification: The pursuit of higher crop yields on existing farmland with minimal environmental footprint through integrated agronomic and ecological practices.

System of Rice Intensification (SRI): A cultivation method based on single‐seedling planting, wider spacing, intermittent flooding, and enhanced soil aeration to boost yield and resource efficiency.

Complex Rice Systems (CRS): Agroecosystems combining rice cultivation with animal or plant species (e.g. fish, ducks, azolla) to promote nutrient cycling, pest control and system resilience.

Agroecological nutrient management: The use of organic amendments, biofertilisers and soil microbe inoculants to optimise nutrient availability, soil health and reduce synthetic fertiliser dependency.

References

1. Linking types of East Javanese rice farming systems to farmers' perceptions of complex rice systems. Agricultural Systems (2024).
2. Agroecological Nutrient Management Strategy for Attaining Sustainable Rice Self-Sufficiency in Indonesia. Sustainability (2024).
3. Complex rice systems to improve rice yield and yield stability in the face of variable weather conditions. Scientific Reports (2018).
4. Determinants Influencing the Adoption of Rice Intensification System among Smallholders in Mwea Irrigation Scheme, Kenya. Advances in Agriculture (2021).