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- เผยแพร่เมื่อ 6 ธ.ค. 2024
- Cassava
manihot esculenta
Good starchy food source. Considerable amount of calcium, Phosphorus and vitamin C is rich in roots. Use as staple food as well as chips, alcohol and fuel productivity. Comparatively low water and nutrient requirement. Therefore thrive well in marginal lands.
Released Varieties
MU-51
Kirikawadi
CAR5 555
Suranimala
Swarna
Shani
HORDI-MU-1
HORDI 06
Variety details
Climatic requirements/ Areas suitable for cultivation
Up to 1500m elevation. Cultivate throughout the year with in broad range of soil and climate condition.1000-1500mm rain fall and 25-29 oC Temperature is needed.
Soil
Suitable pH is 5-6. Water log, and Alkaline Soils are not suitable
Cutting requirement
12000-13000 cuttings/ha for 90 cm x 90 cm spacing
For high branching varieties 6400-6500
For export 17000-18000 cuttings /ha
Nursery Management
Direct planting of cuttings.
But Special Cultivation can be maintained to obtain healthy vigorous cuttings. However disease management in this cultivating will avoid disease spreading via planting materials
Land preparation
Tillage and plant on set of rain
Planting
In wet zone plant in both Yala and Maha season. In Dry Zone plant in Maha season
Single holes or Ridges can be used.
Bag cultivation of cassava can be observed in different locations. In this method, 50 kg polysacks filled with loam soil are used.
Spacing
High Branching 125 x 125 cm
For Export 75 x 75 cm
Medium Branching type 90 x 90 cm
Fertilizer
Add organic fertilizer and add inorganic as recommended by Department of Agriculture
Times for apply
Urea kg/ha
TSP kg/ha
MOP kg/ha
After 15 Days of planting
85
120
125
After 2.5 -3 Month of Planting
85
-
60
After 4-4.5Month of Planting
85
-
60
Water supply
At the early stage water supply or soil moisture is important.
Weed Control
Weed Control is important in the beginning of the crop until crop cover the ground
Pest Management
Whiteflies act as vector of viral disease. Therefore spraying of neeam extracts. Live fencing, mix cropping with maize and water spraying from top would be useful to control the whiteflies vectors
Disease Management
1. Sri Lanka Cassava Mosaic Virus SLCMV
2. Brown leaf spot Disease
3. Collar rot or Root rot
Harvesting
Harvest at 9Month - 12Month. Only kirikawadi can be harvest from 6 month
Yield
35-40 t/ha
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