Conservation Agriculture Research Updates - April 2026

This review looks at the role of conservation agriculture (CA) needed to transform agriculture to a sustainable intensification that will be needed to positively influence climate change issues, biodiversity, future food security and soil health. The Authors contend that CA offers the only universally applicable agricultural practices that can be adopted at scale and speed, across all agro-ecological zones within the coming 1–2 decades. The paper presents the rationale, evolution, and prospects of CA across the world. The review presents information on CA adoption globally and estimates the potential for expansion to 2050. The Authors summarize that CA "offers a universally applicable agricultural practice that can be adopted at scale and speed."

This paper looks at how nature manages resources and describe living soil and its productivity using nature's laws to improve soil management. They promote the three principles of CA to achieve improved living soils since conventional soil tillage and poor crop diversity are resulting in soil degradation and loss of productivity. Mechanical tillage is not found in natural ecosystems whereas CA emulates natural systems leading to reversal of soil degradation, improved soil health that leads to improved yields and economic and environmental benefits to all farmer land sizes. The CA nature based systems are recommended to offset the issues of climate change and tillage induced soil degradation to help with future food security. 

This interesting article looked at 650 scientific papers to provide an analysis of global scientific production on Conservation Agriculture (CA) and its relationship with climate change mitigation. There has been a significant increase in publications in the last 30 years on sustainable. agricultural practices including key themes on no-tillage, SOC, and GHG emissions. Results indicate that CA research is increasingly focused on its potential to mitigate climate change, particularly through practices like no-tillage, vegetative cover, and crop rotation. This analysis underscores the importance of CA in addressing climate challenges and offers insights into emerging research areas, such as regional adaptations and the long-term effects of no-till systems. The findings aim to guide future research and policy development in sustainable agriculture and climate mitigation. 

This article looks at how nature manages resources and describes management of a living soil and its productivity using nature's laws to guide crop management. It contends that although tillage was considered necessary for agriculture it is now considered as the cause of soil degradation and violates the laws of nature. Soil tillage over time destroys soil biological, chemical, physical and hydrological properties resulting in soil degradation and lower yields. CA systems that include much reduced or no-tillage with surface mulch and crop rotation on the other hand emulate nature.  and offer farmers, both large and small, productivity, economic and environmental benefits. Te authors conclude that application of CA based management will be needed to reduce the impact of climate change on future food security.

This paper looks at CA and its alignment with the UN Sustainable Development Goals (SDGs). It lists SDG 2: Zero hunger; SDG 6: Clean water and sanitation; SDG 12: Responsible consumption and Production; SDG 13: Climate action; and SDG 15: Life and Land as being relevant. the author mentions that CA management principles help improve soil health, , nutrients, water management and biodiversity preservation. CA's resilience to climate change also supports food security. Reduced tillage and soil cover reduces soil  erosion that results in cleaner water and less sedimentation in water. The paper goes on to explain CA benefits for SDG 12, 13 and 15. The author concludes expansion of CA is essential for a sustainable and resilient future.

This introductory chapter of the new book on CA in India writes about the importance of CA as one management system important for future sustainable production of food and agriculture globally. The indicate that CA is opening up ways of food production that are more profitable, improves livelihoods and enhances ecosystem services. They recommend CA needs to be promoted for the benefit of the farmer, wherever he or she may be farming, however poor or rich, small or large, as well for the society and the planet. All disciplines and people have a role to play because the option and opportunity, which we all must seize, is at the level of a paradigm change. The paper also provides data on the adoption of CA globally.

This paper reports the origins, history and recent advances in CA and report that CA is now practiced on about 200 mha globally. They mention that regenerative agriculture (RA) have no scientific definition but generally adopt CA. This paper suggests that a single definition for agricultural sustainability via a multi-stakeholder world congress would standardize certification and de-confuse the market. RA describes exactly what CA does for soil health and all farmers need to unite around a new “Combined Regenerative Agriculture” (CRA) to lobby for adequate payments for environmental services. The paper also says expansion of CA is critical for world sustainability. Many gaps and constraints exist, especially for smallholders.

This paper describes a way to map accurately the area and fields in Belgium that practice CA management. They point out that monitoring of CA adoption is usually dependent on farmer declarations or field inspections that are not very accurate. In this paper 247 fields using CA in 2020-2021 were used to develop a classification model for predicting CA by combining remote sensing and census data. The census data provided the data for annual crops and cereals in the rotation. The paper explains what remote sensing was used to measure the extent of soil cover, soil disturbance, to construct a classification model distinguishing fields under conservation from those under conventional practices. Their results showed 15.5 % (2875 fields) out of 18,516 cropland fields can be classified as conservation agriculture. These fields tend to adopt non-inversion tillage and have diverse crop rotations.

The authors mention that there are 3.5mha of CA in India but little data on the effects of CA on soil nutrient dynamics like N, P, and S. They have a nine year study on these nutrients in a maize-wheat cropping pattern that compares CA with conventional methods. Results show that CA and N addition significantly enhanced various soil chemical properties and microbial biomass compared to CM for N, P and S and concluded that "These findings contribute crucial knowledge for sustainable development by offering valuable perspectives on N, P and S management strategies."

I think it is appropriate to include this inaugural Keynote Speech given at the recent 9th World Congress on Conservation Agriculture in Cape Town, South Africa in July 2024. Quoted from the paper: "Conservation Agriculture has gone through a remarkable and unprecedented development. When the term was defined by the Food and Agriculture Organization of the United Nations, FAO, it was still a fairly unknown and untested farming concept, just becoming popular in the Southern Cone of South America and being used by some few pioneers in other parts of the world. This changed with the first World Congress celebrated in 2001 in Madrid, when a global movement of Conservation Agriculture started. Some international agricultural research institutions and several national and international development organizations began working on Conservation Agriculture systems and promoting them in their projects, resulting in an exponential adoption worldwide. Extrapolating the adoption data of the last census from 2018/19 we should now have about 250-270 million hectares of annual cropland under CA, which is nearly 20% of the global cropland"

This recent, available, valuable on-line paper emphasizes the critical nature of soils for agriculture and natural ecosystems that need to be protected. The paper describes how nature manages resources and management guidelines for "living soil". The paper promotes CA as a management system to achieve this protection. It explains why tillage is detrimental to soil health (SH) and how it destroys soil biological, physical, chemical, and hydrological properties. It concludes that in 2018/19, CA was practiced on more than 205 million hectares across more than 100 countries. That the impacts of climate change and tillage on food production and environmental degradation require the application of nature-based solutions as Conservation Agriculture.

This paper highlights the importance of soil health and reviews the literature on the role of CA in improving soil health. They suggest that conventional agricultural practices cause deterioration in soil quality, increasing its compaction, water erosion, and salinization and decreasing soil organic matter, nutrient content, and soil biodiversity, which negatively influence the productivity and long-term sustainability of the soil. They conclude that CA can reduce the negative impacts of conventional agricultural practices on soil health while conserving the production and provision of soil ecosystem services.

This paper is included as it provides data on the progress and acreage of CA globally. The article says CA since 2008/09 has expanded globally at an annual rate of more than 10Mha per year. It has risen to 205.4 Mha in 2018-19 or 14.7% of global cropland area. The spread in Asia, Africa and Europe was suggested as due to better organized farmers and better networking. Expansion is also mainly farmer driven. The paper has several lessons elaborated from the global spread of CA responding to 5 key questions.

This paper starts by saying Green Revolution (GR) agriculture is faltering and needs to be replaced to meet the needs of the Sustainable Development Goals (SDGs). It describes the role of CA in accomplishing this goal. They explain that CA can raise productivity, reduce inputs, regenerate degraded land, reduce erosion, and improve the flow of ecosystem services and so contribute to several SDGs. It highlights that CA is spreading globally at an annual rate of about 10 mHa per year. In 2015-16 it was estimated to cover 180 Mha with 48% in the Global South. It further discusses what is needed for CA to contribute to SDGs to contribute to lasting  quality of human life and nature.