Page 317 - Proceeding The 2nd International Seminar of Science and Technology : Accelerating Sustainable Innovation Towards Society 5.0

The 2 International Seminar of Science and Technology
nd
“Accelerating Sustainable innovation towards Society 5.0”
ISST 2022 FST UT 2022
Universitas Terbuka
2.3 Deep Flow Technique (DFT) System
According to Ekaria [2], several elements that must be considered in
cultivating vegetables with the deep flow technique hydroponic system
are as follows:
2.3.1 Growing media
The planting medium used in this farming is rokwool, as a medium for
seedlings and growing pakcoy plants. The shape of the skirt is like a
cube with a size of 2.5 cm x 2.5 cm x 2.5 cm. (Renna et al. 2020)
2.3.2 Plant installation
The installation used in this Pakcoy farm uses a deep flow technique
(DFT) system with materials such as mild steel poles, mild steel
battens, pipes, etc. The size of this plant installation is 7.5 M x 1.5 M
x 1 M with a total of 180 planting holes.
2.3.3 Nutrition
The nutrients used are ABMix in the form of powder mixed into 5 liters
of clean water and dissolved until well mixed. Its use is by mixing the
ABMix solution in a nutrient water reservoir with a concentration
between 800-1300 ppm.
2.3.4 Pakcoy plant care
Pakcoy plant care begins with checking the nutrient content in the
water reservoir, cleaning the nutrient water reservoir and pipes after
harvesting and selecting plants contaminated by disease so they don't
spread to other plants.
2.3.5 Production cost
In one production, costs are required to purchase pakcoy seeds,
rockwool, and ABmix nutrients. For rockwool it can be used for two
productions, so that in one production it is enough with half the
rockwool. The cost required is Rp. 120,500.

4 CONCLUSION
Pakcoy hydroponic vegetable farming in Arga Indah 1 village, Pagar
Jati district, Bengkulu Regency is currently implementing a deep flow
technique (DFT) system with a size of 7.5 m x 1.5 m x 1 m requires a
manufacturing cost of IDR 3,546,900 with a total planting hole of 180

ISST 2022 – FST Universitas Terbuka, Indonesia 287
International Seminar of Science and Technology “Accelerating Sustainable
Towards Society 5.0