It is easy to apply, one can learn by observation or simple instruction from other farmers. Soil Collection Farmers are acutely aware of the loss of soil from their land and seem to collect soil continuously. They construct and keep in good repair terraces, irrigation canals and stone wallsin order to conserve soil and increase their land area, which is done by trapping soil deposited by the river in the monsoon. In the monsoon, flood waters deposit some soil on terraces, terrace slopes, in diversion and irrigation canals. Rivers Rivers and streams transport various materials, including silt.
Farmers sometimes make large silt traps to harvest soil.
Several areas are enclosed by low stone walls with spaces for water to enter and exit from the enclosed areas. Some farmers say that in the monsoon the level of the river rises up and floods the fenced area, depositing silt. After three or four years the area fills up and there is sufficient silt to grow crops. In this way some of the farmers have increased their cultivated land and reclaimed areas damaged by floods. Landslides Farmers are acutely aware of landslides which on the one hand cause destruction and on the other provide opportunities to expand cultivated area and harvest soil.