Abstract
This article mainly focuses on the soil conservation practices to counteract the soil
degradation and to maintain the soil nutrients and organic matter. As the study area is
highly prone to the soil erosion, the comparison study was initiated for the rill treatment
with the help of sweet gum balls, riprap (different sizes of stones), mulch with coconut
shells, bermuda grass with polyacrylamic (PAM) and a control. Five different rills of
same size including an untreated control with four different materials used for making
the protective covers were experimented initially using the triangular notches of 600
by
maintaining the actual discharge of 0.001379 m3 sec-1
. The rills were continuously kept
under the visual observations for about two years which includes two monsoon seasons
for each year. The changes in the size of the rills after every 4 rainy seasons are
documented. The results of the experiments showed that the erosion control capacity of
various protective covers are 68.4, 57, 51.2 and 44.8 respectively with the ingredients
riprap, sweet gum ball, bermuda grass with PAM and the mulch with the coconut shells.
Subash Thanappan, Shashidhara Ranganath Hosamani, Mahesh Naganahalli Chandrappa. (2020) Rill treatments to enhance nutrient rich soil, a case study, Asian Journal of Agriculture and Biology, Volume 8, Issue 2.
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