This presentations about hydrological structures produced by Export Agriculture Degree Programme, Uva wELLASSA University.

1. Group no:08

2. Growing crops in a liquid based growth
medium
Sometime artificial media for ancharage
In a complete nutrient solution with or
without solid phase

3. Nursery management

4. Coir dust was use as nursery medium
The medium was sterilized before use.
Used a pots that provides the suitable
condition for seed germination
Pots were filled with coir dust and use
polythene trips for bottom level
place the pots in shallow containers that is
filled with water

5. 2.5 cm cube sponge blocks were used
for this method
 Seeds were places at the center in a
cut made on the topside of the sponge
block.
The sponge blocks were placed in
shallow containers that is filled with
water

7. Mukunuwenna- 10 – 12 cm long semi
hardwood or hardwood stem cuttings.
Kang Kong- 20 cm long semi-hardwood
cuttings with 3-4 nodes.
Lettuce and cabbage seedlings

9. 1.Styrofoam boxes were selected as container
2. A black plastic sheet of at least 0.15 mm
thickness was place as lining inside the boxes to
leakage and to reduce the light
3.plants are grown in small pots filled with coir dust
4.Container was filled with albert solution and make
a hole in board for areation and refill the solution
5. The planting pots were also fixed to this board
1.Styrofoam box method

10. Boards with holes to cover
the box and to which pots are
fixed
Container with black
polythene lining

11. 1.Planting pots with holes at the bottom were
used.
2.these pots were with coir dust medium
3.These pots were placed in shallow containers
filled with the nutrient solution.
4. Nutrient solution reaches inert medium by
capillary action
 Aeration is very important in this technique.
Therefore, old coir dust mixed with sand or
gravel can be used.
Procedure:

14. 1.Bottle was cut into 2 halves.
2.Albert solution was filled to the bottom part
of the bottle.
3.Upper part was placed downward inside
the bottom part.
4.Kankun was grown inside the bottle.
Procedure :

17.  An end cap in one side and other
side there is polythene cover.

20.  Land is not necessary. It can be practiced even
upstairs, open spaces
 Clean working environment. The grower will not
have any direct contact with soil.
 No need of making beds, weeding, watering, etc.
 Continuous cultivation is possible.
 No soil borne diseases or nematode damage.
 Off-season production is possible.
 Vegetable cultivation can be done with leisure
sense.
 Higher yields possible with correct management
practices.

21.  Higher initial capital expenditure.
 Considering the significantly high cost
 The soil-less culture is limited to high value
crops of the area of cultivation.
 A large-scale cultivator may have to purchase
instruments to measure pH and Ec of the
nutrient solution.
 Energy inputs are necessary to run the system.

22. Group Members:
M.M.B.S SILVA UWU/EAG/13/0035
P.I SASANKA UWU/EAG/13/0035

23. END…..