| 1 |
This standard (Part 1) covers definitions of terms commonly occurring in the limited field of irrigation practice, for example, types of crops, areas and water requirements.
In the formulation of this standard, due weightage was given to international coordination among standards and practices, prevailing in different countries in addition to relating it to the practice in the field in the country. While development of this standard, considerable assistance was taken from multilingual technical dictionary on irrigation and drainage published by the International Commission on Irrigation and Drainage (ICID) among many other sources.
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| 2 |
This standard was first published in 1967 and subsequently revised in 1991 in light of the experience gained during the use of this standard and technological advancements. This revision (second revision) has been brought out to bring the standard in the latest style and format of the Indian Standards. In addition, definitions as given in clause 4.9, 4.13, 4.14, 4.16, 4.21, 4.22, 4.25, 4.32, 4.43, 4.48, 4.52, 4.58, 4.78 and 4.80 have been modified and the definition of ‘reservoir filling efficiency’ has been newly added. |