Maize Farming in Trans Nzoia (2026 Guide): Varieties, Calendar, Yields & Selling to NCPB

Trans Nzoia is Kenya's grain basket, and maize farming here is the backbone of both the local economy and the national food supply. The cool, high-altitude plains around Kitale, Kwanza, Endebess, Cherangany and Saboti enjoy a long single growing season that late-maturing hybrids love. If you farm maize in Trans Nzoia, the difference between an average crop and an excellent one comes down to a handful of decisions: the right variety, planting on time, feeding the crop properly, and selling smart. This guide walks through all of them with realistic 2026 Kenyan numbers.

Why Trans Nzoia is Kenya's grain basket

Trans Nzoia sits mostly at 1,800–2,100m above sea level on deep, fertile volcanic and red loam soils. It receives a reliable long-rains season — typically building from March/April and running through to September/October — giving 900–1,300mm of rainfall in a single long season rather than two short ones. That long window is exactly what high-yielding, late-maturing maize needs to fill grain fully.

The main sub-counties — Kwanza, Endebess, Saboti, Kiminini, Cherangany and Kapenguria's borders — are dominated by maize, with wheat, beans, potatoes and dairy alongside. Kitale town is the commercial hub, home to seed companies, agro-dealers, millers and the NCPB depot.

County-specific challenges to plan for:

• Soil acidity: Years of continuous maize and DAP use have acidified many fields. Low pH locks up phosphorus and cuts yields. Soil testing and liming are increasingly essential.
• Maize Lethal Necrosis (MLN) and grey leaf spot: Disease pressure is real in the humid highland climate — choose tolerant varieties and rotate.
• Fall armyworm and stalk borer remain the main insect threats.
• Post-harvest losses and aflatoxin from drying maize in a wet season — drying and storage discipline matters.

Choosing the right variety

Variety choice in Trans Nzoia is mostly about matching maturity length to your altitude and season length.

Variety	Maturity	Best-suited zone	Notes
H614	Late (~6 months)	High, long-season (Kwanza, Endebess, Saboti)	The classic Trans Nzoia workhorse; top yield potential where the season is long
H629	Late	High, long-season	Good yield and standability; a strong H614 alternative
DK 8031 / DK 90-89	Late/medium-late	High to mid altitude	Vigorous, popular, good grain quality
H6213	Medium	Mid altitude / shorter pockets	Safer where the season is a little shorter
DK 777	Medium	Mid altitude	Reliable, widely grown
Pioneer / PAN hybrids	Varies	Varies	Match the maturity rating to your zone

Rule of thumb: in the coolest, longest-season areas plant late maturers (H614, H629, DK 8031) for maximum yield. In slightly warmer or shorter pockets, or if you plant late, drop to a medium maturer so the crop finishes grain-filling before the rains taper. Always buy fresh certified seed — recycling hybrid seed collapses yield.

Long-rains season calendar

Period	Activity
December–February	Soil testing, liming, primary ploughing, buy inputs early
Mid-March–April	Harrow, plant with first reliable rains + planting fertiliser
April–May	First weeding, gap-filling, scout for fall armyworm
~6 weeks (knee-high)	First top-dressing (CAN/urea), second weeding
Before tasseling	Second top-dress on strong crops; disease scouting
June–August	Grain filling; monitor pests and disease
September–October	Maturity, dry-down, harvest
October–December	Drying, shelling, storage and selling

Land preparation and planting

• Prepare early. Plough in the dry season and harrow to a fine, level seedbed so you can plant the moment the rains are reliable. Late land prep is the most common cause of late planting.
• Lime acidic soils. If your soil test shows low pH, apply agricultural lime a few weeks before planting.
• Spacing: 75cm between rows and 25–30cm within rows, one seed per hole, gives roughly 44,000 plants per acre — a full, uniform stand is the foundation of high yield.
• Planting fertiliser: Apply DAP or a compound NPK at planting, placed below and beside the seed. On acidic soils, some farmers prefer NPK blends over straight DAP.

Fertiliser and top-dressing program

Maize is a heavy feeder. A typical Trans Nzoia program per acre:

• At planting: ~50kg DAP or NPK compound.
• First top-dress (knee-high, ~6 weeks): ~50kg CAN or urea, applied to moist soil beside the row.
• Second top-dress (before tasseling) on strong crops: a further 25–50kg CAN/urea to push grain fill.

Where the government subsidised fertiliser programme is running, register early through your ward agriculture office to cut this cost significantly. Do not skip top-dressing — nitrogen at the right time is what separates 30-bag fields from 15-bag ones.

Pests, diseases and weed control

• Fall armyworm: Scout from emergence; treat the whorl early in the evening with recommended insecticides and rotate actives.
• Stalk borer: Manage with timely control and field hygiene (destroy crop residues that harbour larvae).
• Grey leaf spot, MLN, head smut: Choose tolerant varieties, rotate with legumes (beans, soya), and avoid continuous maize where possible.
• Weeds: Keep the crop clean for the first 6 weeks — early weed competition is a silent yield thief. A pre-emergence herbicide plus one or two weedings works well on larger farms.

Indicative costs, yields and gross margin (per acre, 2026)

These are indicative ranges and vary with soil, management, input prices and season — treat them as a planning guide, not a guarantee.

Item	Indicative KES per acre
Land preparation (plough + harrow)	4,000–7,000
Certified seed (10kg)	3,500–5,500
Fertiliser (DAP/NPK + CAN/urea)	12,000–20,000
Herbicide + pesticide	3,000–6,000
Planting + weeding labour	4,000–8,000
Harvesting, shelling, drying, bags	5,000–9,000
Total variable cost	~31,000–55,000
Yield (well managed)	25–35 bags (90kg)
Farm-gate price (indicative)	KES 3,500–5,000 / 90kg bag
Gross revenue	~90,000–160,000
Indicative gross margin	~45,000–110,000

Margins swing hardest on yield and selling price, which is why variety, fertiliser and marketing decisions matter more than shaving a few shillings off land prep.

Harvesting, drying and storage

Harvest when husks are dry and the grain is hard. Because Trans Nzoia's harvest often coincides with lingering rains, drying discipline is critical to avoid mould and aflatoxin. Dry grain down to about 13.5% moisture before storing — NCPB and serious millers reject wet or mouldy grain. Shell clean, treat with an approved grain protectant, and store in dry, well-ventilated bags off the floor. Hermetic (PICS) bags help farmers hold grain safely for a better price later in the season.

Where and how to sell your maize

Trans Nzoia farmers have more buyers than most:

• NCPB (Kitale depot): Sells at a gazetted price, buys clean dry grain in standard bags. Register in advance, expect quality checks, and plan for payment delays.
• Millers and large traders: Kitale hosts numerous millers who buy for quick cash — convenient but usually at a lower price than holding for a strong market.
• Cooperatives and aggregators: Bulking through a group improves your bargaining power and access to structured buyers.
• Direct buyers on Agrisoko: List your grain, state moisture and grade clearly, and connect with buyers beyond the local broker network.

A smart approach is to split your crop: sell a portion at harvest for cash flow, and hold the rest (in good storage) for the price rise that usually comes months after harvest. Before agreeing any price, check the live maize price and the broader market intelligence dashboard so you are negotiating from data, not guesswork.

Sell your Trans Nzoia maize for more on Agrisoko

Trans Nzoia can out-produce almost anywhere in Kenya — but strong yields only pay off if you sell well. Use Agrisoko to track current maize prices, compare buyers, and list your maize for sale so serious buyers and millers come to you instead of you taking the first broker offer at the farm gate.