RESPONSE OF CORN TO DIFFERENT SEQUENCE OF WATER STRESS AS MEASURED BY EVAPOTRANSPIRATION DEFICITS
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Date
1963
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UNIVERSITY OF AGRICULTURAL SCIENCES, BANGALORE
Abstract
Increased demands by engineer and economist for informs ion pertaining
to agricultural production with different levels of water supply
call for intensified efforts to develop crop water production functions.
Their importance is increasingly recognized, especially in water project
planning, water allocation and delivery and in farm irrigation planning,
design and operations. Improvements in the accuracy of such estimates
increase the usefulness of the planning process.
Functional relationships between crop yield and water supply presently
available are only roughly estimated and are either assumed or derived
empirically. This may be one of the reasons why present irrigation practices
are not much different from those of the past in spite of the tremendous
amount of work reported in relevant literature. This is not to imply that
past work has not been important; in fact, work done in the past has helped
to formulate present experimentation. Recently, however, the need for
better predictive capability has become much greater, due to population
expansion, intense competition for water between agricultural and nonagricultural
needs, and increasing scarcity of natural water resources.
Finally, but not least, environmentalists are bringing pressure on agriculturalists
to use water more judiciously and wisely than in the past.
This situation requires sound planning and management of irrigation.
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No. Of references 32