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Tag: water management

How effective soil aggregate management can boost productivity and climate resilience

Written by dmedina on . Posted in News.

Soils are the bedrock for plant health and sustenance, but how do we protect and enhance them to maximize their nutritional potential? Years of conventional farming practices have left many soils depleted, raising urgent concerns about how to rejuvenate them. The recent El Niño event during the 2023/24 farming season in southern Africa, bringing extreme weather conditions—ranging from prolonged droughts to intense floods—has exposed the vulnerability of these soils. Poorly managed soils, already strained by years of excessive tillage and lack of cover, struggle to retain moisture under such stress, leading to crop failures even after rainfall.

However, conservation agriculture (CA) offers a vital solution. By improving soil structure and moisture retention, CA practices provide a lifeline for crops in challenging conditions. Recognizing this, CIMMYT scientists are actively promoting CA among smallholder farmers across sub-Saharan Africa, highlighting its critical role in sustaining soil health and resilience in the face of climate challenges.

Isaiah Nyagumbo demonstrating soil aggregate stability (CIMMYT)

Described as lumps of soil particles that bind together strongly, soil aggregates play a vital role in maintaining soil health, supporting plant growth, and sustaining agricultural productivity. Formed by the combined effects of biological, chemical, and physical processes, the structure and stability of soil aggregates are crucial for several soil functions—primarily water infiltration, root growth, and resistance to erosion. Soil aggregates consist of various soil particles, including sand, silt, clay, and organic matter. There are different types of soil aggregates, including macroaggregates (>0.25 mm) and microaggregates (<0.25 mm), with macroaggregates typically more stable and beneficial for soil structure and functions.

Demonstrating the value of soil aggregate stability
A CIMMYT researcher holding a soil aggregate from a CA field (CIMMYT)

Imagine three soil aggregate samples taken from the same field but under different management regimes—from virgin soil that has not been previously cropped, to land under conservation agriculture practices for the last 5 to 8 years, and soil conventionally ploughed annually before crop planting for many years. When these soil aggregates are gently immersed in clear water, stark differences can be noted. The aggregates from conventionally tilled soil, weakened by years of intensive cultivation, quickly disintegrate, turning the water murky and brown.

In contrast, the aggregates from virgin soil remain intact, preserving the water’s clarity even after several hours. The CA soil aggregates exhibit much better stability than those from the conventionally tilled soil but fail to remain as intact as those from the natural virgin soil. A simple lesson is drawn from this demonstration! Restoring degraded soils is a serious challenge. Even after 5 years of CA practices, soil organic carbon levels may only show modest improvement, and the aggregates, while more stable, still don’t match the condition of aggregates from virgin soil.

Soil recovery from a degraded state is a slow process that is not “a walk in the park.” Transitioning from conventional tillage to CA is challenging and slow, requiring years to rebuild organic matter and improve aggregate stability. Patience and careful soil management are vital, as degradation can occur rapidly, but recovery is a lengthy process. However, incorporating organic soil amendments like manure and compost, along with diversifying crops by introducing legumes such as cowpea, groundnut, soybean, mucuna, and pigeon pea, can accelerate this recovery. While degradation occurs rapidly, soil restoration demands a long-term commitment, but the rewards are worth the effort.

Exploring conservation agriculture as a source to improve soil health

Conservation agriculture is built on three key principles: reduced soil disturbance, permanent soil cover, and diverse crop rotation. Minimizing soil disturbance helps preserve soil structure, while permanent soil cover shields the soil against splash erosion and boosts microbial activity. Crop rotation enhances soil fertility, maintains aggregate structure, and disrupts pest and disease cycles. These principles are essential for soil recovery and the retention of organic matter.

Among these, permanent soil cover is often the most challenging for farmers to implement, yet it is critical for effective soil management. Demonstrating its importance, a simple test with water applied to soil samples with varying levels of cover illustrates splash erosion effects.

“Such a simple test mimics real-life conditions farmers face during rains. Soils without cover suffer significant erosion, while those with minimal or substantial cover show reduced erosion and improved water retention. This emphasizes the importance of maintaining permanent soil cover to foster microbial activity and enhance soil health,” highlighted Isaiah Nyagumbo, cropping systems agronomist.

In a nutshell, soil aggregate management is fundamental to climate resilience and agricultural sustainability. Through the adoption of conservation agriculture practices, smallholder farmers can significantly improve soil health, enhance water and nutrient retention, and increase crop resilience to climate stress. The journey from degraded to healthy soil is long and challenging, but with careful management and patience, the benefits are profound and lasting. By understanding and implementing these principles, farmers can build a more sustainable and resilient food system.

Helping farmers access waterlogged agricultural lands amid prevailing food insecurity in Sudan

Written by Julian Bañuelos-Uribe on . Posted in Blogs.

In conflict-ridden Sudan, Gadarif State in Eastern Sudan is the most important region for sorghum production, with about 5-6 million feddan (5.18-6.22 acres) cultivated on an annual basis on large scale farms equipped with agricultural machinery. However, like the country, the state is covered with vertisols, clay-rich soils that shrink and swell with changes in moisture content, that become waterlogged and cannot be properly cultivated during rainy season.

To address the issue, technical experts from the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) are mapping areas affected by waterlogging in two localities, namely El Fashaga and El Nahal, to identify the most suitable lands to establish large drainage implementing sites integrated with improved crop varieties of sorghum. This work is part of CIMMYT’s Sustainable Agrifood Systems Approach for Sudan (SASAS) program, which works with farmers and herders to reduce their need for humanitarian assistance in conflict-affected Sudan.

“To address the issue of vertisols affected by water logging in Al Gadarif, the prominent agricultural region in Sudan, we used the map developed by ICRISAT in 2023 and consulted with local farmers to identify 100 hectares El Fashaga and El Nahal localities to improve drainage and avoid waterlogging,” said Gizaw Desta, senior scientist at ICRISAT.

Waterlogging is common on poorly drained soil or when heavy soil is compacted, preventing water from being drained away. This leaves no air spaces in the saturated soil, and plant roots literally drown. Waterlogging can be a major constraint to plant growth and production and, under certain conditions, will cause plant death. In Gadarif state, 2.3 million hectares and 1.8 million hectares of vertisols are under high and moderate waterlogging conditions that impair crop production during the rainy season, leading to food insecurity if not reversed with appropriate agricultural practices.

Experts evaluate the compacted soil. (Photo: CIMMYT)

“For years, my farm has been flooded by water during the rainy season, and I cannot cultivate sorghum as plants die of water suffocation”, said Ali Ahmed, a farmer from Al-Saeeda area of ​​Al-Nahal locality who is affected by waterlogging. “Alternatively, we as farmers affected by waterlogging were forced to cultivate watermelon instead of our main staple food sorghum. This shift in the crops we cultivate is hardly affecting our income.  I am glad that ICRISAT is working to establish drainage systems and address waterlogging within our lands.”

“At SASAS, we strive to ensure that farmers have access to fertile lands and other agricultural inputs. We work with our partners to address all problems facing farmers including waterlogging to help farmers continue producing their staple food and cash crops,” said Abdelrahman Kheir, SASAS chief of party in Sudan.

Ethiopian researchers travel to India to strengthen knowledge regarding increasing wheat productivity

Written by Julian Bañuelos-Uribe on . Posted in News.

The irrigated lowlands of Afar and Oromia in Ethiopia are vital areas for the cultivation of wheat and increasing their productivity is crucial to attaining food security in the light of extended drought and other climate shocks.

Adaptation, Demonstration, and Piloting of Wheat Technologies for Irrigated Lowlands of Ethiopia (ADAPT-Wheat) is a three-year project funded by Germany’s Federal Ministry for Economic Cooperation and Development with the objective of identifying, verifying, and adopting wheat technologies that increase wheat production and productivity in Afar and Oromia.

As part of ADAPT-Wheat’s capacity building mission, four Ethiopian wheat researchers from different disciplines visited the Indian Central Soil Salinity Research Institute (CSSRI), the Indian Institute of Wheat and Barely Research (IIWBR), Land force (Dasmesh Mechanical Works), the Borlaug Institute for South Asia (BISA), and National Agro Industries from 13 -22 March 2024.

At CSSRI, the researchers learned how to reclaim salt-affected soils through the use of salt tolerant crops, improve management of water usage, and employ cover crops in salt-affected soils to reduce soil temperature and evapotranspiration. They also visited a sodic and saline microplot facility used to screen genotypes under the desired salinity and sodicity stresses. The researchers witnessed ongoing activities such as agrochemical/ biological/hydraulic technologies to reclaim salt-affected soils, the use of poor-quality irrigation water for crop production and the adoption of ameliorative technologies for salinity management.

The Ethiopian researchers also attended an international conference organized by the Indian Society of Soil Salinity and Water Quality, “Rejuvenating salt affected soil ecologies for land degradation neutrality under changing climate.”

At IIWBR, researchers visit a gene bank. (Photo: CIMMYT)

They learned about breeding methods, and advances in yield enhancement, disease resistance, sustainable agricultural practices, innovative farming methods, genetic stocks developed for grain protein, iron, and zinc enhanced wheat varieties, phytic acid levels, gluten strength, and grain texture.

At Dasmesh Mechanical Works, they learned the operation and maintenance of equipment ADAPT-Wheat has purchased from Dasmesh, including machines for plowing, land leveling, planting, and threshing.

The visit to BISA included an introduction to Conservation Agriculture methods, such as fertilizer use efficiency and crop residue management, which will ultimately help improve productivity back in Ethiopia. They also viewed an ongoing experiment on Precision–Conservation Agriculture Based Maize-Wheat Systems.

Finally, the researchers visited the CIMMYT-India office and met with Mahesh Kumar Gathala, systems agronomist and lead scientist.

“We are proud to host our Ethiopian colleagues. Collaborating with them allowed us to learn as much from them as they hopefully learned from us during their visit,” said Gathala.

A visit to CSSRI. (Photo: CIMMYT)

For Daniel Muleta (irrigated wheat project coordinator), Shimelis Alemayehu (agronomist), Hailu Mengistu (wheat breeder) and Lema Mamo (soil scientist) all from Ethiopian Institute of Agricultural Research (EIAR), the visit to India was beyond their imagination and gave them the opportunity to participate in salinity workshop, visited different institutions and gained experience. Shimelis said “even though the workshop was for experience sharing the travel made was beyond that”.

The team acknowledged CIMMYT-Ethiopia and CIMMYT India offices and EIAR management.

Marcelo Ortiz

Written by mcallejas on . Posted in Uncategorized.

Marcelo is an experienced graphic designer with over 20 years of graphic design experience for CIMMYT headquarters in Mexico. His main responsibilities include branding development, branding, design, and production of corporate reports and project reports. Developing designs for scientific articles, papers, abstracts, and serving as a liaison with the various vendors that provide a service for communications.

In Ethiopia, regional and local representatives endorse national framework on climate services

Written by mcallejas on . Posted in News.

In Ethiopia, regional government representatives endorsed in October 2023 the National Framework on Climate Services (NFCS), a tool designed to guide the establishment and delivery of climate services in key sectors: water and energy, agriculture, health, disaster risk management, and environmental protection.

This endorsement by regional state representatives marks an important step towards the implementation at regional and zonal levels of the NFCS, which was adopted at the national level in 2020.

Participants of the two-day workshop organized by the Ethiopian Meteorological Institute in partnership with CIMMYT (Photo: CIMMYT).

The adoption of the Framework concluded a two-day workshop organized by the Ethiopian Meteorological Institute in partnership with CIMMYT through the AICCRA project, which aims to scale climate-smart agriculture and climate information services for the benefit of millions of small-scale farmers in Ethiopia. The workshop was also attended by ministers, state ministers and heads of federal offices from the sectors affected by climate change.

Responding and adapting to climate change requires that all affected sectors cooperate and collaborate, stressed Fetene Teshome, General Manager of the Ethiopian Meteorological Institute, in his opening remarks. Experts and regional and local representatives should come together to establish a system that can gather quality information and disseminate it to its users, he added.

“We can’t tackle climate change easily, so we have to find ways to live with it and use it to our benefit,” said Habtamu Itefa, minister of water and energy. He urged the workshop participants to approach the NFCS as a system designed to outlive governments and called them to play an essential role in its implementation in their respective regions, zones, districts and kebeles (sub-districts).

“Climate services will bring meaningful changes in agriculture”

Among the sectors most affected by climate change, agriculture accounts for about 40% of the GDP and employs more than 80% of the population, making it the backbone of the Ethiopian economy. It is thus crucial to address climate change impacts on the sector.

CIMMYT Senior Scientist, Kindie Tesfaye, explained how the AICCRA project works to enhance access to climate information services and validated climate-smart agriculture technologies in six African countries, including Ethiopia. As a stakeholder of the project, CIMMYT is training farmers, development agents, and local agricultural experts, and other agricultural value chain actors on the use of climate advisory services in collaboration with LERSHA, a digital platform providing farmers with contextualized weather forecast, inputs, mechanization and financial advisory services.

“We consider climate as a major problem for the country’s agricultural activities because the sector is heavily dependent on rain-fed production system and we believe that implementing this national framework on climate services will bring meaningful changes to the sector enabling it to manage climate risks successfully,” said Kindie Tesfaye.

The AICCRA project supported strengthening the function of the NFCS coordination team for multi- stakeholder engagement, supporting the endorsement of the framework and providing training on resource mobilization for its implementation. The project is also building capacity at different levels, promoting climate smart agriculture.

Productive in-depth discussions

Prior to the NFCS endorsement, participants shared inputs from their respective regions and sectors, providing inputs to the framework. Delegates mostly discussed capacity building needs, information delivery channels, synergetic cooperation among government institutions and mobilization of resources for implementation.

Signing of the endorsement between the Ethiopian Meteorological Institute and representatives of the regional states (Photo: CIMMYT).

On the second day of the workshop, four different papers were presented on a seasonal climate update for the 2023 Bega season (October to December), on the impacts outlook for the upcoming Bega season, on the national state of the climate, and on climate risk management in agriculture extension.

The plenary discussion that followed was led by Fetene Teshome and offered an opportunity to the participants to raise their concerns on the implementation of the framework in their respective regional states. Many of the participants reflected on how the framework can accommodate the different ecology of various areas and how it can upgrade or replace dysfunctional meteorology infrastructures.

The Climate Risk Curriculum module that was prepared by AICCRA for agricultural extension workers was also launched during the workshop.

 

Breaking barriers in agriculture

Written by mcallejas on . Posted in In the media.

Nepal’s traditional farming system faces labor shortages, and climate-induced risks to crop production, infrastructure, investment, and agro-advisory tools. This calls for urgently redesigning agriculture practices and addressing the challenges and a noticeable shift in farmers’ interests in farming practices.

The International Water Management Institute and CIMMYT, in collaboration with local governments in Gurbakot Municipality of Surkhet and Haleshi Tuwachung Municipality of Khotang, conducted research on Sustainable Intensification of Mixed Farming System (SI-MFS), the research found a noticeable shift in farmers’ interests in farming practices.

Read the full story.

Lokesh Chaudhary

Written by Sarah McLaughlin on . Posted in Uncategorized.

Lokesh Chaudhary is an agronomist with expertise in seed physiology, crop modelling, precision agriculture and GIS GNSS. He is currently learning about drone piloting, data collection and processing.

At CIMMYT, Chaudhary works on resilient climate agriculture, under which technology transfer is done. Expertise in agronomy, seed and machinery is required and used extensively. He supports in the execution of farmers participatory and on-station demonstrations/research trials on climate-resilient agricultural practices, monitors day-to-day field activities (irrigation, fertilizer, herbicide, insecticide, etc.) and conducts data collection of the farmers participatory/research trials.

SP Poonia

Written by Sarah McLaughlin on . Posted in Uncategorized.

SP Poonia is a Lead Researcher with CIMMYT’s Global Wheat Program and Sustainable Agrifood Systems (SAS) program in India.

Through his work, he aims to feed nutritionally rich and safe food globally through best collective efforts for enhancing farming systems’ productivity with efficient resource use and the adoption of conservation agriculture-based preferred technologies at grassroot level.

Scientist urges upgrades to monitor groundwater use for agriculture in low-income countries

Written by Mike Listman on . Posted in News.

Data collector reading data from offline groundwater level logger – one of the three tested monitoring technologies. (Credit: Subash Adhikari/CIMMYT)

Based on a pilot study regarding the feasibility and cost effectiveness of several groundwater monitoring approaches for agriculture in Nepal’s Terai region, a water and food security specialist who led the research has recommended the use of phone-based systems.

Speaking to diverse experts at the recent World Water Week 2022 in Stockholm, Sweden, Anton Urfels, a systems agronomist at the International Maize and Wheat Improvement Center (CIMMYT), said that manual monitoring with phone-based data uploading is relatively low-cost and effective and could be scaled up across the Terai.

“One alternate monitoring approach studied — online data uploading — has substantially lower staff time requirements and technology costs and higher temporal resolution than phone-based monitoring, but does not provide real-time data and entails high technical skills, capital costs, and risks of theft and damage,” said Urfels in his presentation, ‘Upgrading Groundwater Monitoring Networks in Low-Income Countries’.

Urfels and partners also developed a prototype of an open-source groundwater monitoring dashboard to engage stakeholders, help translate raw data into actionable information, and detect water depletion trends.

Water has become a key part of food research and innovation, critical for sustainable and ecological intensification in agriculture, according to the scientist.

“Collecting groundwater data is difficult and the technology for monitoring is unreliable, which impairs effective modeling, decision-making, and learning,” Urfels explained. “Like other countries in the region, Nepal is increasing its agricultural groundwater consumption, particularly through private investment in irrigation wells and pumps that open irrigation to more farmers. This and climate change have altered groundwater recharge rates and availability, but national data on these trends are incomplete.”

An extensive lowland region bordering India and comprising one-fifth of the nation’s territory, the Terai is Nepal’s breadbasket.

Held yearly since 1991, World Water Week attracts a diverse mix of participants from many professions to develop solutions for water-related challenges including poverty, the climate crisis, and biodiversity loss. The 2022 theme was “Seeing the Unseen: The Value of Water”.

“I’d recommend more pilot studies on phone-based groundwater monitoring for other areas of Nepal, such as the Mid-hill districts,” Urfels said. “We also need to fine-tune and expand the system dashboard and build cross-sectoral coordination to recognize and take into account groundwater’s actual economic value.”

Urfels said the Nepal Ministry of Energy, Water Resources and Irrigation has requested the nationwide scale-out of a digital monitoring system, and CIMMYT and Nepal experts will support this, as well as improving the system, which would be freely available for use and development by researchers and agencies outside of Nepal.

The research described was carried out under the Cereal Systems Initiative in South Asia (CSISA), which is funded by USAID and the Bill & Melinda Gates Foundation, and under the CGIAR integrated research initiative, Transforming Agrifood Systems in South Asia (TAFSSA).

Regenerative agriculture in Mexico: the case of Bimbo

Written by Sarah McLaughlin on . Posted in In the media.

Grupo Bimbo has two pilots with the International Maize and Wheat Improvement Center (CIMMYT) in the Mexican states of Sonora, Sinaloa and Jalisco to embed sustainable practices.

Through regenerative agriculture, an approach which aims to improve soil health and protect water resources and biodiversity, Grupo Bimbo has set the goal of ensuring that 200,000 hectares of wheat are cultivated with regenerative agriculture practices by 2030, ensuring that by 2050 100% of its key ingredients will be produced with this type of practices.

Read more: Regenerative agriculture in Mexico: the case of Bimbo

Kh. Abul Khayer

Written by Sarah McLaughlin on . Posted in Uncategorized.

Kh. Abul Khayer is a machinery development officer with CIMMYT’s Sustainable Agrifood Systems (SAS) program in Bangladesh. He conducts demonstrations, adaptive trials and field days, and coordinates participatory trails on major cereals, vegetables, oilseeds and grain legumes. He collects and reports on data from farmer participatory trials, and assists on monitoring and evaluation of project activities.

For the Cereal Systems Initiative for South Asia (CSISA), Khayer conducts training needs assessments and imparts formal and informal training to partners, farmers and service providers in cooperation with CSISA team members. He analyzes and creates the project scope and milestones.

Khayer interacts with and organizes meetings with various stakeholders and partners to discuss, streamline and aid the implementation of field activities. He facilitates partnerships with a wide range of clientele from public and private sector organizations, including farmers’ groups.

K.M. Zasim Uddin

Written by Sarah McLaughlin on . Posted in Uncategorized.

K.M. Zasim Uddin is an agricultural development officer with CIMMYT’s Sustainable Agrifood Systems (SAS) program in Bangladesh. He has a masters in agronomy from Rajshahi University

He is part of projects including the Cereal Systems Initiative for South Asia (CSISA), Fall Armyworm R4D and Management (FAW), Big data analytics for climate-smart agricultural practices in South Asia (Big DataÂČ CSA), and Climate Services for Resilient Development in South Asia (CSRD). His main responsibilities are research and development on agricultural mechanization for the CSISA Mechanization and Extension Activity (CSISA-MEA). He has participated in versatile training, workshops and conference programs across Asia.

Uddin has worked in different national and international non-government organizations and companies for more than 13 years, including in research and development at Syngenta Bangladesh Limited and on the Borga Chasi Unnayan Program at BRAC. He also worked as an agriculture officer under the Char Livelihood Program, funded by the United Kingdom Department for International Development.

Aguas Firmes

Written by Bea Ciordia on . Posted in Uncategorized.

The Aguas Firmes project aims to introduce and promote the adoption of conservation agriculture technologies at scale to obtain sustainable crop yields with higher productivity in irrigated environments in Calera, Zacatecas. It also seeks to address water use efficiency by adapting and promoting appropriate technologies in the volume of water applied in irrigation.

Objectives

  • Facilitate the adoption of sustainable intensification practices on more than 4,000 hectares over the next three years to reduce the water footprint of participant farmers
  • Recharge two of Mexico’s most exploited aquifers by restoring forests and building green infrastructure

Transforming Smallholder Food Systems in the Eastern Gangetic Plains (Rupantar)

Written by Bea Ciordia on . Posted in Uncategorized.

The Transforming Smallholder Food Systems in the Eastern Gangetic Plains (Rupantar) project aims to define the processes and practices (technical options, scaling interventions, policy settings and implementation) that can be applied to achieve sustainable, efficient, diversified food systems at scale in the Eastern Gangetic Plains of Bangladesh, India and Nepal.

Home to 450 million people, this region has the world’s highest concentration of rural poverty and strong dependence on agriculture for food and livelihoods. Productivity remains low and diversification is limited due to poorly developed markets, sparse agricultural knowledge and service networks, inadequate development of available water resources, and low adoption of improved, sustainable production practices.

Rupantar builds on existing work and partnership networks to link research outputs and development goals through the demonstration of inclusive diversification pathways, definition of processes for scaling to the millions of smallholder farmers in the region, and generating a better understanding of the policies that support diversification.

Research objectives

  • Defining the processes and practices (technical options, scaling interventions, policy settings and implementation) that can be applied to achieve sustainable, efficient, diversified food systems at scale in the Eastern Gangetic Plains.
  • Understanding the context for diversification in the Eastern Gangetic Plains.
  • Defining and implementing diversification pathways using collaborative and inclusive approaches.
  • Deepening understanding of the trade-offs and synergies associated with diversification pathways.
  • Engaging and communicating with change-makers to ensure outputs are used and integrated into independent programs.

Project outcomes

  • Demonstrated pathways for equitable and sustainable diversified food systems in the EGP.
  • Improved evidence-based policies for planning and development programs that promote diversification.
  • Self-sustaining diversification pathways that are owned by local partners and promoted without ongoing project support.

Gustavo Teixeira

Written by Bea Ciordia on . Posted in Uncategorized.

Gustavo Teixeira is an Automation and Mechanization Lead with CIMMYT’s Excellence in Breeding Platform.

As a Breeding Operations and Phenotyping module leader, he provides evaluation of breeding program operations according to continuous improvement and operational excellence methodologies and lead initiatives to improve CGIAR and National Agricultural Research Systems (NARS) breeding operations capacities.

Teixeira is an expert in agriculture engineering, processes, mechanization and automatization. He has over 15 years of experience in the private sector, including as Automation Manager for R&D in Latin America at Syngenta.