Fig.1 Organic manuring

( Source: ISRIC, NL.)

Fig.2 Steep slopes

( Source: ISRIC, NL.)

Fig.3 Ditches

( Source: ISRIC, NL.)

Fig.4 Rain-fed rice is a common crop on Acrisols in Madagascar

( Source: ISRIC, NL )

Fig.5 Rain-fed rice is commonly intercropped with cassava

( Source: ISRIC, NL )

Fig.6 Irrigated rice is grown in the valley and on lower slopes

( Source: ISRIC, NL.)

Fig.7 Many Acrisols on Madagascar are deeply incised by erosion gullies

( Source: ISRIC, NL.)

Fig.8 Dense Acrisols are difficult to till

( Source: ISRIC, NL.)

Fig.9 First, the surface soil of the Acrisol is turned over

( Source: ISRIC, NL.)

Fig.10 Seedbed of small loose aggregates

( Source: ISRIC, NL.)

Fig.11 Unprotected Acrisol surfaces slake easily under the impact of rain drops

( Source: ISRIC, NL.)

Fig.12 Caking of dispersed surface soil hindered the growth of cassava plants

( Source: ISRIC, NL.)

Fig.13 Slaking of the surface soil caused surface runoff of rainwater

( Source: ISRIC, NL.)