Frequently Asked Questions

  • How does CAVA II Project support farmers?

    • Access to knowledge to build their capacity in being better business oriented farmers.
    • Provision of improved planting materials.
    • Linkage to market for their roots.
    • Linkage to quality inputs and market information.

  • How does a farmer benefit from the project?

    • You can benefit from the training organised by CAVA II Project and its partners.
    • You can also have access to expert advice from the project and its partners.
    • Your business plan can be evaluated by the project and suggestions given at no cost to you to you.

  • How does the project solve the problem of inadequate market?

    • CAVA II Project helps organise farmers into production clusters and direct their root production to industries.
    • The Project also provides improved cassava varieties targeting specific traits for farmers in that value chain to grow and make money.

  • Where can I get improved cassava stems/ inputs?

    For Nigeria:

    • International Institute of Tropical Agriculture (IITA)
    • National Root Crops Research Institute Umudike (NRCRI)
    • State Agricultural Development Programs(ADPS)
    • State Root and Tuber Expansion Programme
    • Private factories that operate out grower schemes

    For Malawi:

    • Food Agriculture Organisation
    • AGR-SSTP
    • MICF

    For Uganda

    • Certified seed entrepreneurs being mentored by Africa Innovations Institute.
    • Foundation seed
    • National Crops Resources Research Institute (NaCRRI)
    • National Semi-Arid Resources Research Institute(NASARRI)
    • NgettaZonal Agricultural Research Development Institute(ZARDI)
    • Mukono ZARDI

    For Tanzania

    • NgettaZonal Agricultural Research Development Institute (ZARDI)
    • Mukono ZARDI
    • Maruku Agricultural Research Institute ( ARI - MARUKU)
    • Agricultural Research Institute ( ARI- HOMBOLO)
    • Agricultural Research Institute (ARI- KIBAHA)
    • Naliendele Agricultural Research Institute ( ARI _Naliendele)
    • Cassava Seed Entrepreneurs (CSE) supported by MEDA project scattered around Mtwara, Dodoma, Pwani (coast region) and in the Lake zone.

    For Ghana

    • Ministry of Food and Agriculture (MOFA)
    • Crop Research Institute (CRI)

  • What are theviable cassavamarkets?

    End product

    Target industry

    Applicable country


    Home consumption

    Nigeria, Ghana and Uganda


    Brewery, Biofuel

    All CAVA II Countries

    High Quality Cassava Flour (HQCF)

    Confectionaries, Brewery, Noodles and Pasta,

    All CAVA II Countries

    Industrial Grade Cassava Flour

    Paperboard industries, Plywood industries, glue and adhesive industries

    All CAVA II Countries


    Textile, beverage and sweeteners, pharmaceutical industries, Paperboard industries, plywood industries, glue and adhesive industries

    All CAVA II Countries

    Grits/ chips

    Livestock feed, home consumption, Paperboard industries, plywood industries, glue and adhesive industries.

    All CAVA  II Countries

    Improved Odourlessfufu

    Home consumption

    Nigeria and Ghana

    Improved Kokonte

    Home consumption


    Improved Agbelima

    Home consumption


    Improved Wet fufu

    Home consumption

    Nigeria and Ghana

    Improved Tapioca

    Home consumption


    Improved stem cuttings

    Untapped area of sales

     All CAVA II countries


  • What is the best time to cultivate cassava?

    Cassava can be cultivated anytime as long as you can provide 60 days of water from the day of planting. It is best however to time your planting date based on the harvesting time to take advantage of high dry matter and high starch content prevalent during the dryer months

  • What is the ideal soil for planting cassava?

    Cassava will grow in most soils but it prefers slightly acidic (pH 4.5-6.5), loose or loam soil with good drainage. The tubers shall certainly rot if planted in low-lying areas prone to flooding.

  • Is fertilizer bad for cassava?

    Fertilizer is not bad for cassava. However be sure you use the right fertilizer that supplies the missing nutrition in your soil. Apply fertilizer appropriatelyconsidering the economic return on the variety. In all cases use both organic and inorganic fertilizer to keep your soil sustainable fertile.

  • How do I know the right variety to cultivate?

    Seek expert advice from CAVA II, IITA, State Agricultural Development Programmes and Ministry of Agriculture in your region or district

  • What is the best weeding method for cassava?

    A combination of herbicide and manual weeding is recommended. Apply a glyphosate during land preparation. After planting spray a pre-emergence herbicide. During the growth of the plant use a post emergence herbicide but ensure you avoid spraying the cassava plant.

  • How far apart should I plant the stem?

    • For root production, plant at a spacing of 1m x0.8m
    • For stem multiplication, plant at a spacing of 1m x 0.5m

  • How many cassava stands can I have in a hectare?

    For root production, target to have 12,500 plant stands at planting and minimum of 10,000 plant stands at harvest. For stem production target to have 20,000 plant stands at planting.

  • How long can I keep my cassava in the soil?

    Cassava can be harvested from 10-18 months.

  • If my cassava stays longer in the soil will its starch content get higher?

    Yes starch content will increase exponentially up to 18 months afterwards rot of root may set in. It is recommended that you harvest your cassava between 12-14 months to obtain thebest starch content.

  • Why does my cassava have plenty water and less starch?

    This could be that the:
    • cassava is too young to harvest
    • cassava variety exhibits low dry matter content in that location or environment
    • cassava is harvested at onset of rains
    • cassava is not an early bulking type

  • How do I improve the starch content of my cassava?

    • Grow improved varieties with proven high starch content adapted to our environment
    • Do not harvest at onset of rains

  • After harvesting how long can I keep my cassava without reducing the starch content?

    Process within one day of harvest to get best starch content.

  • Can cassava be left in the ground for storing?

    Yes to some extent not exceeding 24 months; but not advisable because of attack from bests like rodents.

  • How do I preserve my stems?

    • Cassava stems do not store well, maximum of four weeks for best vigour.
    • Leave 10% of your cassava farm un-harvested to provide stems for next season
    • Plant some stems along wet areas

  • I am interested in cassava farming, where do I start from?

    • Develop a business plan.
    • Get quality information on cassava production.
    • Decide what you want to do with the cassava root after is has been produced.If you want to sell fresh root, to who and what price? If you want to process, to what product? And who or where is the market for that product?
    •  Do a market survey and work out clearly outlet for your production or processed product.
    • Then determine the size of the market that you can handle and work backwards to calculate the volume of roots that will be needed to keep the business moving for at least 250 days in a year. Use this rule of thumb:

    For gari 3:1
    For chips 3:1
    For starch 5:1
    For HQCF 4:1

    • For a fresh starter 20-25 tons per hectare growing improved varieties. If you put all these together you can determine the area of land that need to be cultivated and know if you have the financial resource to cultivate it. You may then decide to produce 60% of the requirement and source out 40% to out-growers if root production is not your primary aim.