Strengthening Soil Health is an important part of increased productivity and quality. According to the Ministry of Agriculture’s Strategic Plan (2013-2020) soil health is a priority area that will be implemented mainly by NAREI, GUYSUCO and GRDB. NAREI will be the Focal Point for this priority area.


  1. Through an awareness and education campaign inform farmers about the importance of soil health and soil testing;
  2. Develop on-farm fertilizer production system, e.g. vermicomposting as a model on-farm fertilizer system;
  3. Ensure field/extension personnel equipped with basic soil testing tools;
  4. Encourage the use of inoculant, green manure and mychorrize in farms;
  5. Develop liming requirements for agriculture soils;
  6. Conduct studies to determine nutrient status of soils to promote Integrated Nutrient Management (INM) for soils;
  7. Investigate the impact of micro-nutrients on crop production;
  8. Establish weed control measures for field crops such as corn, soya and beans;
  9. Training and technical awareness programs developed on ISM and IPNM;
  10. And, develop program for GIS mapping of agriculture soil and match soil profile with crop profile.

Ongoing Projects

The National Agricultural Research and Extension Institute is Soils Department is currently engaged in a series of projects. Below is a list of those projects:

  1. Crop development
  2. Fertilizer studies
  3. Soil Health
  4. The Use of Mycorrhiza in Substrate Preparation for Crop Production
  5. The use of Grass Mulch to develop a plough layer on clay raised beds
  6. Evaluation of Rhizobia Strains
  7. The effect of rice husk biochar as an amendment on a marginal soil in Guyana
  8. Mechanization: Operationalization of farming equipment
  9. All year-round production of cabbage under shaded conditions
  10. Year-round production of hot pepper under shaded conditions
  11. The use of the steamer for soil sterilization


Fruits, Vegetables & Other Crops – Seed Technology


Our mission is to achieve excellence in promoting technologies through research, and training programs that serve the people of Guyana.


Our vision is to improve and sustain food production while conserving natural resources and promoting healthy and active lives by creating and disseminating knowledge in the plant sciences.

  1. Producing quality seeds to meet the demand of farmers in Guyana.
  2. Operationalising of the seed technology laboratory.
  3. Enhancement of staff through national and international capacity building courses.

Overall Objective

The overall objective of the department is to develop, adapt and transfer appropriate agronomic technologies for farmers and other stakeholders.

Specific Objectives

  1. To develop quality seeds of locally adapted varieties.
  2. To breed seeds for tolerance to adverse conditions such as drought, marginal soils and soil acidity.
  3. To develop appropriate production packages for sustainable agriculture.
  4. To conserve germplasm of important crops.


The department houses the following research programmes:

  1. Response of established coconut palms (varieties: dwarf and tall) to fertilizer regimes.
  2. Evaluation an integrated management system (IMS) for the control of the ant mealybug complex of pineapple.
  3. The effects of micro nutrients on all year production of papaw and cherry.
  4. Evaluation of root cutting method for rapid multiplication of pineapple “seed” suckers.
  5. Yield and yield component inter-relationships among 12 drought tolerant accessions of cassava on marginal soils.
  6. Identification and integrated management of vectors responsible for the transmission of viruses in hot pepper.
  7. Evaluation of agronomic parameters of local and exotic varieties of hot pepper under the shade house and open field.
  8. Seed purification and multiplication of legume and solanaceous crops.
  9. Research in the respective programmes is, conducted at NAREI headquarters and at NAREI’s Commercial Farm, Mon Repos.

Products and Services

These include breeding; developing production packages; multiplying basic seed; and collecting, characterizing and conserving plant genetic resources (germplasm).

  1. Laboratory Services – provided are germination, moisture and purity tests.
  2. Training Services – sensitizes and inform students, farmers, extension officers/agents and other stakeholders on new and developing technologies.


The department has developed and released a number of crop varieties such as Vigna sesquidalis – yard long bora, Capsicum annum – miwiri, Cajanus cajan – dwarf pidgeon peas, Hibiscus esculentum – Clemson spineless) and Solanum melongena – egg plant/ boulanger that are multiplied and sold by the department. The department has also established a Cocos nucifera – dwarf and tall, plant nursery at NAREI.


Linkages have been established with programmes in other departments of NAREI, University of Guyana (UG), Guyana School of Agriculture (GSA) and Hope Coconut Estate, Internationally with Monty’s Plant Food Company (USA) and Yangzhou University (China), other government institutions, Non Governmental Organizations (NGO) and the private sector (ANLIM, Caribbean Chemicals) and others. Linkages are in form of joint research projects; boards/committees such as the Pesticides and Toxic Chemical Board (PTCCB) and the National Cane Farming Committee (NCFC).

Regional and International Collaboration

Programmes participate in regional/international research networks and projects. These include University of the West Indies (UWI) and Mc Gill University.


Brochures, posters, booklets, documents and pamphlets etc.



Plant Biotechnology & Genetic Resources


To conceptualize and implement innovative research in plant biotechnology and on plant genetic resources designed to utilize technological innovations to enhance crop productivity and to devise novel strategies for the conservation of plant genetic resources for food and agriculture.


  1. Collect and conserve a wide range of local and exotic crop and crop-related genetic resources and to establish and sustainably manage in situ and ex situ basal, core and working collections of plant genetic resources for food and agriculture.
  2. Genetically characterize and evaluate some economically important exotic and local crop and crop-related plant genetic resources for food and agriculture.
  3. Utilize genetically refine plant genetic resources to enhance the field performance of new and existing crop species.
  4. Train and maintain a critical core of skilled technicians for the sustainable functioning of a PGRFA Programme.
  5. Adapt, refine, and standardize laboratory procedures and protocols for plant tissue culture and DNA molecular analyses in order to foster inter-agency collaborative research.


  1. Conduct plant exploration activities to collect plant genetic resources, identify threatened species, and establish manageable depositories for their security.
  2. Implement a plant genetic resources management system to rationalize and standardize a procedure for cross-departmental channeling of plant genetic resources, management of gene bank depositories, and warehousing of data generated from applied research.
  3. Apply basic- and intermediate-level molecular techniques to plant DNA forensic and diagnostic research, and to the genetic characterization and evaluation of some important crop and crop-related plant genetic resources.
  4. Develop standardized field techniques, procedures and protocols for genetic refinement and enhancement of crop species.
  5. Develop field procedures and protocols for field crop-depository maintenance, regeneration, and contamination prevention and control.
  6. Advise on procedures for the movement of high-risk species subject to phytosanitary and environmental regulations, as well as on the introduction of exotic crop species; inclusive of components and derivatives of artificially modified organisms.
  7. Improve the efficiency of plant tissue culture protocols with a view to supplying a high quality of tissue-cultured ‘seed clones’ to sustain farmer-managed secondary clonal ‘seed’ farms.


  1. Building Technical (Institutional and Personnel) Capability
  2. Support International PGRFA Initiatives
  3. Collaboration – Inter-Institutional and Regional
  4. Joint Funding and Research ð Sustainable Research
  5. Support Sustainable Research ð Research Products
  6. Support and Promote Farmer Entrepreneurship
  7. Support Sustainable Research









Plant Pathology & Entomology