Water Users Association and Irrigation Management - Institute for ...
Water Users Association and Irrigation Management - Institute for ...
Water Users Association and Irrigation Management - Institute for ...
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I<br />
in yield. This may be due to different water management practices adopted in both the<br />
villages. In Gundur, it is the assurance <strong>and</strong> timeliness of supply of water by the WUA,<br />
which has enabled the farmers to use water according to the needs of the crop (see Table<br />
7.6). In Hagedal, where there is no WUA, malfunctions regarding water use are rampant<br />
(see Table 7.7). This has not only created adverse effects <strong>for</strong> the soil but also leads to<br />
decline in yield in the affected soils.<br />
Table 8.4: Decomposition of Differences in Yields in Affected L<strong>and</strong>s <strong>and</strong> Good<br />
L<strong>and</strong>s into Affected L<strong>and</strong> <strong>and</strong> Input Changes in Gundur <strong>and</strong> Hagedal<br />
Source of change Gundur Hagedal<br />
I.Affected l<strong>and</strong> -2.486 -1.004<br />
2.Changes in input -9.59 -20.44<br />
a. Seed -0.652 -13.189<br />
b. Fertilizer 0.425 0.768<br />
c.FYM 2.707 4.804<br />
d. Zinc 0.759 -0.509<br />
e. <strong>Irrigation</strong> 1.197 -1.96<br />
f. Pesticide -14.023 -10.36<br />
Total difference -12.07 -21.45<br />
Further, to examint: the extent of impact of difference in l<strong>and</strong> quality on the average yield,<br />
we have undertaken a decomposition analysis. Here we estimated equation (5) <strong>for</strong> both the<br />
villages. Since gypsum is used only in the affected l<strong>and</strong>s, the production function has been<br />
I<br />
re-estimated <strong>for</strong> affected l<strong>and</strong> <strong>for</strong> the purpose of the decomposition analysis. Given that the<br />
elasticity of gypsum was insignificant in both the villages, there was not much difference in<br />
the elasticity of other variables in the production function when it is excluded. With the<br />
help of the elasticities <strong>and</strong> the mean values of each variable we have decomposed the whole<br />
effect into l<strong>and</strong> effect <strong>and</strong> input effect <strong>and</strong> these are presented in Table-8.4. It may be noted<br />
that the percentage decline in the yield from affected l<strong>and</strong> in relation to the good l<strong>and</strong> of<br />
Gundur (-12.07 percent) is less than Hagedal (-21.45 percent). This could be attributed to<br />
better water <strong>and</strong> l<strong>and</strong> management in Gundur where the WUA is active.<br />
The impact of l<strong>and</strong> quality on yield reduction, keeping inputs constant, is relatively high in<br />
Gundur (-2.5 percent) compared to Hagedal (-I percent). This indicates that with the same<br />
level of resources compared to waterlogging <strong>and</strong> salinity free areas, the gross output would<br />
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