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Session 3.1: Nursery production

Session 3.1: Nursery production. Moses Munjuga 23 rd to 27 th October 2006. Presentation structure. What is a quality seedling? Type of nurseries Good nursery practices (factors to achieve quality seedlings) Seedling production in individual country

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Session 3.1: Nursery production

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  1. Session 3.1: Nursery production Moses Munjuga 23rd to 27th October 2006

  2. Presentation structure • What is a quality seedling? • Type of nurseries • Good nursery practices (factors to achieve quality seedlings) • Seedling production in individual country • Introduction to seedlings production practical

  3. Quality seedlings Good seedling quality is the basis for tree planting success • Seedlings adapted to the planting site condition • Bushy site – vigorous shoot • Dry site – good root system • Seedlings which start growing quickly after transplanting should have: • Strong rooting system • Adequate inoculation

  4. Tree nurseries categories • Individual or private • Community or group • Central • Commercial • Training Nurseries are differentiated by their function and size.

  5. Factors affecting seedling quality • Careful seedling handling -pricking out -root pruning -transport • Containers -plastic bags -local materials • Optimal substrate -porosity -waterholding capacity -fertility • Appropriate nursery environment watering Weeding regularly Appropriate shading Hygiene Recordkeeping

  6. Seedling handling • Seeds are sown in seedbeds but sometimes directly into container • Carefully transplanting or pricking out • Root pruning is necessary • Ensure careful handling when transporting to field • Change the containers if it takes longer time

  7. Containers • Plastic or polythene bags • Containers made from local materials • Biodegradable containers should be used

  8. Substrate Substrate gives the seedling stability and nourishment, therefore necessary for good seedling development • Good waterholding capacity • Porosity (root development) • Fertility (monitor for deficiency)

  9. Nursery and plant hygiene • Refers to pest (rodents, insects, birds, etc.) and diseases (fungi, bacteria etc) • Always use new prepared substrate (Cleanliness) • Substrate change • Use pesticides or fungicides in case of attack

  10. Nursery environments • Root prune seedlings and sometimes shoot prune • Water seedlings regularly • Put shade over seedlings • Weeding • Protect seedlings from animals (fence) • Keep record of all nursery activities

  11. Seedlings production • Cameroon – vegetative propagation and on-station seed research • Ghana – Large scale production, community and central nurseries production. Vegetative approach is being developed • Tanzania- Central and community nurseries production

  12. After nursery…. • Seedlings from central nursery were planted in genebank in Ghana and Tanzania (two genebank) • Seedlings from community nurseries were planted in on-farm (about 5000 seedlings, in 2006)

  13. Introduction to seedlings production practical • Mixing substrate • Potting • Pricking out • Root pruning

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