Wilson Business Park,
Langata Rd, Nairobi, Kenya.
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Production Program

Sweet Sorghum Program


  • Sweet sorghum and Napier grass is ready for harvesting 3-4 months after planting and harvesting can continue at an interval of 6-8 weeks for 4 – 7 years.
  • Leave a stem length of 8 -10 cm from the ground at harvesting.
  • As Napier harvesting is very similar to sugar cane harvesting. Similar equipment is used


– Sorghum is a 90-day crop hence under irrigation can achieve 3 crops yearly
– Production per hectare is 3 tonnes of grain.
– Sweet Sorghum Syrup


– Stalks Production will be 40 tonnes per hectare
– One tonne of stalk will produce 350 Kg syrup and at 80% after-processing losses, net produce will be 280 Kg per hectare
– Hence for 40 tonnes per hectare, syrup production will be (280 kg/tonne X 40 tonnes) = 11,200 kg/hectare


Soybean Program

Soybeans will be produced under crop rotation
During phase 1 sweet sorghum production, soya production will use 1,000 hectares
Soya production per hectare will be 2.5 tonne/ha per crop.


Sunflower Program

Sunflower will be produced under crop rotation
During phase 1 sweet sorghum production, Sunflower production will use 400 hectares
Sunflower production per hectare will be 2.5 tonnes/ha per crop


Other Income Generating Activities on the Farm.

Cattle feedlots: – 400 hectares (1,000 acres)
Beef animals feed on biomass produced from the initial phase 1 area of 3,500 ha


Biomass calculations

  • Sweet sorghum – 40 tones/ha X 30% X 3 crops/year X 2,500 ha = 90,000 tonnes/ year
  • Soya beans – 3 tonnes/ha X 2 crops/year X 1,000 ha = 6,000 tonnes/year
  • Total annual biomass available = (90,000 + 6,000) = 96,000 tonnes/year
  • This is equivalent to a daily biomass production of (96,000/365) = 263 tonnes per day
  • Assuming loses to be 30%, net daily biomass available will be (263 X 70%) = 184 tonnes
  • Each animal will feed on 50 kg/day
  • Hence animals that can be supported will be (184/50) = 3,680 heads of cattle
  • We intend to keep 2,000 heads of cattle in order to have a buffer effect in case of fluctuations in biomass production. This enterprise will be a fattening process where animals will be acquired at around 150 kg live weight, fattened to average 500 kg within 6 months

Farm Manure

  • Excess Biomass from the processing plants and cattle feedlots will be use used as manure to maintain soil futility
  • Gross waste biomass from sorghum will be 10% X 13 tonnes/ha X 3 crops/year X 2,500 ha = 9,750 tonnes/year. This will be composted to 50% X 9,750 tonnes = 4,875 tonnes/year.
  • Gross waste biomass from soya beans will be 10% X 3 tonnes/ha X 2 crops/year X 1,000 ha = 600 tonnes/year. This will be composted to 50% X 600 tonnes = 300 tonnes/year
  • Gross manure from animal dry weight manure will be 2 kg/animal/day. Annually 4,000 heads of cattle will be raised on the 400 ha farm. Hence annual manure production will be 2 kg/animal X 4,000 animals X 365 days/year = 2,920,000 kg, say 2900 tonnes/year. This will be composted to 80% X 2,900 tonnes = 2,320 tonnes/year
  • Total compost and manure will be = (4,875 + 300 + 2,320) = 7,495 tonnes/year.
  • At a rate of 5 tonnes/ha/year manure/compost application the above compost and manure will cover (7,495/5) = 1,499 hectares.


For pollination Tana 3S will has selected areas for Apiculture. With a good management regime, one acre of sunflower can support about 50 colonies of honey bees. With each colony producing up to 40 kilograms per year, then one can expect 2,000 kg of honey per year assuming continues flowering of the crop. Hence 500 acres could yield upwards of 80 MT of honey per year.

This compares favourably with the findings of Crane et al., (1984), who estimated that one hectare of mature chestnut trees can yield 500 kg of honey per year. The improved hives for high production include the Kenya Top Bar and the Langstroth

From the above crops, we will be able to generate 50 tonnes of dry matter which will run a 10 MW power electricity production unit.