Twenty-eight dry open wells, near nalla canal or the Lakshmi canal
(sourced from the Sri Rama Sagar project reservoir) were recharged by
building dykes or barriers in the nalla canal and retaining the runoff
rainwaterin it.
A users group was formed for each water storage structure,
and the water collected in the storage structures was exclusively used for
recharging the groundwater to the dried wells.
Farmer-based interventions
Farmer-based soil and water conservation measures implemented in
individual fields were broad bed furrow (BBF) landform and contour
planting. These are all useful to conserve soil and water,fertilizer application
and weeding operations, field bunding of 38 hectare, around boundaries in
rectangular or in contours to conserve rain water. Planting Gliricidia
(Madri, a leguminous plant adapted to grow in dry areas) on field bunds to
strengthen them and make the soil nitrogen-rich.Farmers were encouraged
to use water resource jointly and irrigate land using micro irrigation
techniques.
Farmers obtained 250 kg more pigeon pea and 50 kg more maize per
hectare using broad bed furrows and micro irrigation techniques.
Drip irrigation (a type of micro irrigation) can reduce water
consumption by 70% but unfortunately only 2% of cultivable land around
the world is irrigated in this manner.
fig-3: Broad bed furrow fig-4: Plantation of Gliricidia on bunds
Wasteland development and tree plantation
Saplings of useful species were planted along the
roads, field bunds and nalas. Contour trenches at 10
m intervals with a 0.3 m height of bund were laid out.
Custard apple plantation along with other useful
species in trenches and Gliricidia saplings on bunds