Growing of erosion resisting crops
Crop species can be selected based on their
ability to prevent erosion. Erosion permitting and erosion resisting crops
should be grown alternately. Cereal crops such as maize, rice come under
erosion permitting and legumes under erosion resisting crops. The fast-growing and deep-rooted trees or shrubs like Leucaena leucocephala, Erythrina sp., Gliricidia sepiumetc. are planted on the contour bunds of the hills
to give it extra stability. The vertical spacing of these species should be
maintained at 1.0–1.5 m and crops are planted between the two rows of hedge
plants. By growing suitable erosion resisting and erosion permitting crops along
with tree/shrub species on contour bund, sediment loss can be reduced to about
12-15%.