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Title: Fertigation System
BPSP 2014/2015
IntroductionDefiniton:
Fertigation is derived from the word "fertilizer" and “irrigation".
Fertigation system is a method of cultivation in which the provision of a complete fertilizer to crops is given in the form of a solution and delivered to the root zone through a drip irrigation system.
BPSP 2014/2015
Basic Requirement
The basic requirement that are need in fertigation system are:
BPSP 2014/2015
1. Green House
Green House : needed to control excess moisture, especially during the rainy season
Roof - must allow sunlight to pass through
Type of roofing materials - using transparent plastic
BPSP 2014/2015
BPSP 2014/2015
2. Irrigation system
Using the drip irrigation system.
Function: Flush and distribute or supply water and nutrient rooting zone into each polybeg.
BPSP 2014/2015
3. Water supply and quality
Must use clean water and quality
Water quality is important to the success of this system
Eg: tap water, pool water, river water
pH value and optimum air EC - 6.5 5.5, <1.0 mS / cm
BPSP 2014/2015
4.Adjust solution tools (pH and EC metre)
Use to determine the pH and EC of fertilizer solution and media are in optimum.
The concentration of fertilizers and media – depend on the plant that we have planted.
EC needs a range of 1.2 mS / cm - 3.8 mS / cm
BPSP 2014/2015
EC Metre
pH metre
5. The polybeg and media
Polybeg size: 20.3 cm x 40.6 cm.
The media that use in fertigation system:
Using the media that to replacing the soil functions.
Example: Cocopeat, rice husk, rootwool, pertile
Cocopeat and husk are widely used - cheap, light weight, high quality and easy to use.
BPSP 2014/2015
Cocopeat Polybeg
Media in polybeg BPSP 2014/2015
The Characteristic of Media
BPSP 2014/2015
6. Nutrient
N - Urea is well suited for injection in micro irrigation system. It is highly soluble and dissolves in non-ionic form
P -Application of phosphorus to irrigation water may cause precipitation of phosphate salts.
K -Application of K fertilizer does not cause any precipitation of salts.
Micro nutrients - Fe, Mn, Zn, Cu, B, Mo could be used as micro nutrients in drip fertigation
BPSP 2014/2015
Cont…
Same with hydroponic fertilizer
Nutrient content of a complete and balanced (different per type of plant)
Usually in a typical set (A & B) (mixture or liquid) in the packaging / containers of different
BPSP 2014/2015
The recommended nutrient for fertigation system:
ACalcium nitrateFerum
BPotassium nitrateMono potassiumMagnesium sulfateManganese sulphateCopper sulfateZinc sulfateBoric acidSodium molybdate
Nutrient
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The operation of fertigation system
BPSP 2014/2015
The plant/crop that suitable for fertigation system:
BPSP 2014/2015
Advantages More productive
Mobile plant
Make high-quality crops
No soil borne diseases
Can reduce the cost of management and operations
Use of water and fertilizer can be saved with the automatic control-nutrients can be given according to the growth stage
Clean and environmentally friendly
Can be planted at any time
Disadvantages High initial capital
High fertilizer costs and a lack of knowledge of steel.
Require media, temperature and humidity suitable
Depth knowledge about plants
Labor-intensive
Sustainable farm management
Require varieties that suit local weather
High risk of loss and
Need good quality water that
Catastrophic system damage and loss
BPSP 2014/2015
Example of fertigation system
BPSP 2014/2015
Example of fertigation system
BPSP 2014/2015
Example of fertigation system
BPSP 2014/2015
Conclusion
In conclusion, fertigation system is efficient method applying fertilizers in which the irrigation system is used as the carrier and distributor of the crop nutrients. The combination of water and nutrient leads to an efficient use of both by the plant. The use of solid fully soluble fertilizers seems more economical in the first stages when fertigation is adopted, but the use of prepared clear liquid solutions is very convenient in other cases. The fertigation system is very suitable for commercial agriculture for maximize profit and yield.
BPSP 2014/2015
Thank You
BPSP 2014/2015