Intercropping in Kenya — companion crops, nitrogen savings, and income comparison
ShambaIQ analyses companion crop combinations for your exact soil and location — compatibility, nitrogen fixation savings, reduced fertilizer cost, planting layout, and projected income vs monocrop. Free for all 47 counties.
Use the Add companion crop option in the ShambaIQ tool to get your intercrop plan alongside the fertilizer recommendation.
Get my intercrop plan →How to get an intercrop plan — 4 steps
Select your location
Choose county and ward (or use GPS). ShambaIQ loads the satellite soil data for your exact area.
Pick your primary crop
Select the main crop you plan to grow — maize, beans, potato, tomato, or any of the 40+ supported crops.
Add a companion crop
Expand 'Add companion crop' and choose your second crop. Compatibility is checked automatically against soil, climate, and growth stage.
Get the full intercrop plan
Results include the fertilizer plan for both crops, nitrogen savings in kg/ha and KES, planting layout (arrangement, spacing, timing), and income vs monocrop.
What the intercrop audit tells you
Compatibility status
Green (compatible), Amber (warning — proceed with care), or Red (conflict). Includes the specific reason.
Nitrogen fixation savings
For legume companions: exact kg of nitrogen fixed per hectare and per acre, bags of CAN saved, and the KES saving at current fertilizer prices.
Planting layout
Row arrangement (alternating rows, strip intercrop), spacing between crop rows, and whether to plant simultaneously or stagger planting dates.
Income comparison
Projected gross income from the intercrop vs growing the primary crop alone — as a percentage advantage and absolute KES difference per acre.
Fertilizer plan for both crops
Combined nutrient recommendation accounting for both crops' needs, with bag quantities and timing.
Certified seeds for both crops
Verified seed varieties for the primary and companion crop, with maturity days, yield, altitude zone, and breeder.
Common intercrop combinations in Kenya
Beans fix 40–80 kg N/ha — reduces CAN top-dressing cost. Widely practised across all Kenyan highland zones.
Excellent dryland intercrop. Cowpeas tolerate heat and drought, fixing nitrogen while covering soil and reducing erosion.
Fast-maturing green grams are harvested before maize canopy closes, giving two income streams with minimal competition.
Core intercrop system in ASAL counties (Kitui, Makueni, Kajiado). Both crops survive on less than 500mm annual rainfall.
Long-duration pigeon peas fix nitrogen throughout the season and sell at premium prices in Nairobi markets.
Basil repels aphids and whiteflies that attack tomatoes, reducing pesticide spend. Popular in horticultural zones.
ShambaIQ checks compatibility for your specific county soil and season — results vary by location.
Why intercrop? The economics for Kenyan smallholders
Lower fertilizer cost
Legumes fix atmospheric nitrogen, reducing or eliminating CAN top-dressing for the cereal row. Saves KES 1,200–3,500 per acre depending on farm size.
Two income streams
Two harvests from the same piece of land. In maize-bean intercrop, the bean harvest typically covers all input costs before the maize even matures.
Risk reduction
If one crop fails due to drought, pest, or price collapse, the companion crop provides a fallback income. Intercropping is the original Kenyan smallholder insurance strategy.
Frequently asked questions
Which companion crop combinations work well in Kenya?
Common high-performing pairs: maize + beans (nitrogen fixation, lower CAN cost), maize + cowpeas (dryland), maize + green grams (fast second harvest), sorghum + cowpeas (ASAL counties), and tomato + basil (pest control). ShambaIQ checks your soil before recommending.
How much nitrogen do beans fix when intercropped with maize?
Common beans fix 40–80 kg of nitrogen per hectare. ShambaIQ calculates the exact CAN bags saved for your farm size and converts it to KES at current fertilizer prices.
Does intercropping reduce fertilizer cost?
Yes, for legume-cereal combinations. The legume's nitrogen fixation reduces CAN or Urea needed for the cereal. ShambaIQ shows the exact saving in bags and KES.
Can I intercrop with any of the 40+ crops?
Most combinations are supported. Incompatible pairs are flagged rather than silently returning a plan — you will see a compatibility warning with the reason.