Section - XII - The Water calculations

The Water Calculation:

Protective Irrigation: Protective irrigation is used when the rains are delayed or when there are brief spells of no rain in the Monsoon time. This provision is provided for the Main foodgrain crop and the vegetable plot. That is why we had mentioned in the previous section that in a good monsoon year the output would be from 12Ha. ( 6+3 in Kharif and 3Ha in Rabi) but in a bad or sub-optimal monsoon year it would only be 9 ha. (6 Ha in Monsoon and 3 Ha in Rabi because protective irrigation would be used for the Monsoon areas).

One more important thing to be noted is that all the irrigation / water bodies are surface ones and we dont advocate deep digging bore/tubewells.

The Above total shows the amount of water needed in addition to the monsoon water which works out to be a total of 75000 m3 of water needed which is equivalent to 7500 ha-mm (hectare-mm).

For a village of 100 families the total area is 250 ha.

2 NU which would make it 50 people

2 NUs need 15000 (7500 X 2) ha-mm of water. But calculating the total potential for even a 600 mm rainfall area over these 250ha area would come to 150,000 (600X 250ha).

So what we are asking for is just 1/10th of the rainfall [which would come to about 60mm of rainfall falling over 250 ha. area ( 60 X 250 = 15000ha-mm)] for half the HH in the village!!! So in the Panchayats we should be demanding a priority allocation of this water from the public water bodies (channel, check dams, ponds, lakes etc., )