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Practical farming knowledge for Africa

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Farming guides

16 practical guides written for farmers across Africa, from smallholder plots to commercial operations. Each one explains the method and the numbers; confirm the details for your farm with your local extension officer, agronomist or vet.

Planting, feeding and protecting the crops Africa grows: maize, sorghum, cassava, legumes, wheat and more.

  • Young maize seedlings emerging in evenly spaced rows across a planted field.

    Plant population: how many seeds to plant for your rainfall

    The right number of plants per hectare depends on how much water your field can supply. Here is how to choose a target stand for maize and other crops, and turn it into seeds per metre and kilograms of seed.

    5 min readUpdated

  • A farmer's hands peel back the husk to check the kernels on a maize cob, Uganda.

    How to estimate your maize yield before harvest

    Counting cobs, rows and kernels in a few measured strips gives a useful yield estimate weeks before the combine or the harvest team arrives. Here is the method, the sums and its limits.

    5 min readUpdated

  • A farmer carrying a knapsack sprayer walks through a tasselling maize field.

    Calibrating a knapsack or boom sprayer, step by step

    A sprayer that puts out more or less water than you think puts out the wrong dose of every product. Here is how to measure your real spray volume per hectare and work out how much product goes into each tank.

    5 min readUpdated

Cattle, small stock and poultry: grazing, health, breeding and feeding.

  • Thin cattle picking at bare, dusty ground under sparse trees in the dry season.

    Feeding cattle through a drought: decisions to make early

    Drought feeding is expensive and the decisions that matter most come before the grass runs out. Here is how to prioritise animals, work out roughage and supplement needs, and avoid the common and costly mistakes.

    5 min readUpdated

  • Close-up of the head, ear and neck of a speckled Nguni cow, where ticks often attach.

    Tick control and tick-borne diseases in cattle

    Ticks cost cattle farmers through blood loss, damaged hides and deadly diseases such as redwater, gallsickness, heartwater and East Coast fever. This guide covers the main ticks, how the diseases work and how to build a control plan that keeps working.

    5 min readUpdated

Soil health, sampling, conservation agriculture and making every drop of water count.

  • Cupped hands holding a mix of brown and white granular fertiliser.

    From soil test to fertiliser rate: working out what to apply

    A soil test tells you what the soil can supply; your yield target tells you what the crop needs. This guide shows how to turn a nutrient requirement into kilograms of fertiliser product, and how to compare prices fairly.

    5 min readUpdated

  • A sprinkler spraying water over rows of young vegetable seedlings.

    Scheduling irrigation with evapotranspiration and crop factors

    How much water does your crop actually use this week, and how long should the system run to replace it? This guide explains reference evapotranspiration, crop factors, system efficiency and run times with worked numbers.

    5 min readUpdated

  • Gloved hands holding a small sample of soil lifted from a freshly dug patch of ground.

    How to take a soil sample that tells you the truth

    A laboratory can only analyse the soil you send it. Here is how to divide your land, how many cores to take, how deep to go and how to handle the sample so the results reflect the whole field.

    5 min readUpdated

  • Rows of cut maize stubble left standing on a harvested field in morning mist.

    Conservation agriculture: the three principles and how to start

    Minimum soil disturbance, permanent soil cover and crop rotation can protect soil, save water and cut costs. Here is what each principle means on an African farm, the common stumbling blocks and a practical way to begin.

    5 min readUpdated

Records, costs, markets and planning that keep a farm profitable.