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Agronomic specificities in Africa and yield potential

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1

A

GRONOMIC

S

PECIFICITIES IN

A

FRICA AND

Y

IELD

P

OTENTIAL

Claude Jannot Bernard Dubos Jean-Pierre Caliman September 2012

Oil palm requirements

sunshine: between 1500 and 1800 hours a year;

temperature: most favourable annual mean: 26°C, with monthly means of minima > 18° C, and a daily minimum temperature > 15°C;

humidity: maximum with a monthly mean > 75%; water supply: requirement is 150 mm every month. If rainfall + soil reserve is below this value a given month, palms suffer from water deficit;

soils: best yields are obtained on class I soils: deep soils with good water retention capacity which are rich in nutrients.

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2

Agro-ecological conditions to meet

requirements

(3)
(4)

4

Relation between water deficit and yield

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5

consequences on overall yield and monthly

distribution

(6)

6

Yield distribution in Cameroon

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Yield distribution in Cameroon

Yield comparison of the three

estates

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8

Why is there a yield gap?

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9

Sunshine distribution

Climate and yield profile in Riau

province (Sumatra)

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10

Climate and yield profile in

Cameroon

Rainfall & sunshine comparison

Sumatra - Cameroun

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Yield comparison

Conclusion

African investors should go

and grab land in south-east

Asia where conditions are

much better

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