PT. HUTAHAEAN PABRIK TAPIOKA

Jl. Indorayon, Pintubosi, Laguboti, Toba, North Sumatera, 22381-Indonesia.

Raw Material

Cassava Plant

Cassava plant is a plant whose fruit is in the form of tubers and the fruit is in the soil. Cassava plants including plants that are very greedy for nutrients. Fruits / tubers absorb very high water but cannot survive in places / growing media that are too moist (wet).

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Introduction to Cassava / Cassava (Manihot esculenta Crantz)

a. Classification of sweet potato/cassava:
  • Kelas : Dicotyledoneae
  • Sub kelas : Arhichamydeae
  • Ordo : Euphorbiales
  • Family : Euphorbiaceae
  • Sub family : Manihotae
  • Genus : Manihot
  • Species : Manihot esculenta Crantz
b. Sentar of sweet potato / cassava:
  • a. Lampung (24%)
  • b. East Java (20%)
  • c. Central Java (19%)
  • d. West Java (11%)
  • e. North Sumatera (26%)

Factory Raw Material Needs

  1. Factory capacity 18 tons/hour x 14 hours in 1 working day (2 shifts. 1 shift 7 hours) = 252 tons/day.
  2. If the production is 30 tons/ha, then 252 / 30 = 8.4 ha of sweet potato gardens that must be harvested every day.
  3. Monthly raw material needs (25 hk x 252 tons = 6,300 tons of sweet potatoes (6,300 tons/30 tons = 210 ha of cassava to be harvested / month).
  4. So, the need for cassava per year = 6,300 tons x 12 months = 75,600 tons/year or equal to 2,520 ha of garden land (75,600 tons / 30 tons/ha).

Land Requirements

1. Location of Plant & Waste Treatment ± 20 hA.
2. Location of Sweet Potato Plantation ± 2,600 hA.
3. Employee Housing Locations.
4. Research & Development Area (research).

Raw Material Source

1. Core Garden
2. Community Garden
3. Plasma Garden

PLASMA GARDEN (COOPERATION PATTERN WITH THE COMMUNITY)

a. Provision of tractors to plow the land
b. Seed Preparation
c. Fertilizer Preparation
d. Provision of Pesticides, etc.

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Land Preparation
  1. Land preparation aims to make the soil loose, protected from waterlogging, facilitate the planting and maintenance process, provide
  2. manure/compost, and apply agricultural lime (dolomite).
  3. Land that is ready for planting should be given fertilizer sometimes/compost, giving agricultural lime (dolomite), land management (plowing),
  4. making water drainage (can be with a soil rolling system), and fertilizing every hole to be planted.
Planting

How to plant sweet potato seeds are:
1. Spacing follows the variety of seeds to be planted.
2. Planting depth should not be too shallow (15-20 cm)
3. Planting position must be upright
4. If possible, planting rows follow the direction of the sun (west-east)

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Seed Plant

Seedlings to be planted are done by selecting old stems.
The size of cutting the stem of the seedling is around 25-30 cm.
Then do the scraping around the base of the stem (under the eye of the stem).