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Planting from vegetative material - cgiar

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Take Note<br />

18<br />

The growth form and life span of forages affects how<br />

they can be grown and used on farms. For example, short<br />

stoloniferous grasses and legumes are particularly well<br />

suited to grazing and erosion control. Tall, upright grasses<br />

are easy to cut and can be grown in hedgerows. Long-lived<br />

tree legumes are ideal for living fences. The ways of<br />

growing different types of forages on farms are described<br />

in the section ‘Where can forages be grown on farms’.<br />

Why do we need both grasses<br />

and legumes?<br />

Grasses give higher yields<br />

Grasses produce more biomass than legumes and are the<br />

main feed for ruminant livestock (see Table below). Yields<br />

of grasses range <strong>from</strong> 400 – 2,000 kg of fresh, green feed<br />

for every 100 m 2 per year depending mainly on soil fertility<br />

and rainfall distribution.<br />

Dry matter (DM) yields of forage are approximately<br />

20-25% of the fresh, green feed.<br />

Soil fertility level<br />

low fertility<br />

medium fertility<br />

high fertility<br />

Grasses give higher yields than legumes.<br />

Grasses<br />

Legumes<br />

(kg of green feed per 100 m 2 per year)<br />

200 – 400<br />

400 – 1000<br />

1000 – 2000<br />

100 – 200<br />

200 – 300<br />

300 – 600

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