Techniques of watershed harvesting
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Apart from biological insurance against crop failure, roots of pigeonpea are able to break the hardpan in sub-surface layer of black (clayey) soils. Intercropping also gives fairly good protection to mild sloping land against erosion and helps in runoff conservation by 11-15% (Sharda and Ojasvi, 2005). It is also observed that approximately 1200-1300 kg of leaf litters ha from pigeonpea alone is added into soil every season. ...
... In addition, check dam, tanks and reservoirs constructed also store runoff water in lower catchment area. Based on past experiences, a range of soil and water conservation measures have been found promising for diverse agro-ecological regions in India (Table 3) which are effective in reducing soil and nutrient losses as well as enhance the moisture conservation (Sharda and Ojasvi, 2005). Infiltration or percolation loss of water need to be reduced by spraying of asphalt compounds or by covering bottom of tanks or ponds through thin plastic sheets. ...
... In addition, check dam, tanks and reservoirs constructed also store runoff water in lower catchment area. Based on past experiences, a range of soil and water conservation measures have been found promising for diverse agro-ecological regions in India (Table 3) which are effective in reducing soil and nutrient losses as well as enhance the moisture conservation (Sharda and Ojasvi, 2005). Infiltration or percolation loss of water need to be reduced by spraying of asphalt compounds or by covering bottom of tanks or ponds through thin plastic sheets. ...
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