Leek is a vegetable whose edible part of the plant is a bundle of leaf sheaths or stem.
Italian giant, Bulgarian giant, American flag, Mussel burg giant, Swiss bluveta.
Altitude: Over 1500.
Rainfall: Ranging between 700-1000mm during the growing period.
Soils: Deep well drained fertile clay to clay loams with Ph ranging from 6.5-7.5
Temperature: Ranging from 130-240C
Plough the land early before planting, remove all the weeds especially the perennials and other obstacles in the soil. Add 25-30 tons well decomposed organic manure per hectare, incorporate in the soil so as to add essential crop nutrients.
Propagation and planting
Add 250kg DAP per hectare during planting. Propagation is done by direct seeding or first raising seedlings on the nursery followed by transplanting which is done 8-10 weeks. Harden off the seedlings for 1-2 weeks before transplanting. Spacing should be 30cm by 15cm and seed rate of 3kg per hectare.
Keep the vegetable field weed free throughout the growing period. Mulch the crop at the base just around the root zone with dry grass or straw to retain moisture and reduce weed growth.
Should be done at the right time to supplement nitrogen
Done 3-4 weeks after transplanting, apply 250kgCAN pr hectare
Onion thrips: Spray with suitable insecticide eg Dynamic.
The crop mature in 16-20 weeks after planting or when shoots are about 4cm diameter and
25-30cm long. Yield range from 7-10 tons per hectare.
Cool the stems after harvesting at 40C and relative humidity between 95-100%. Under such conditions the stems can be stored for 2-3 months without going bad.