Document Type

Full Issue

Publication Date

12-1893

Abstract

It has long been held that irrigation water applied beneath the surface is better than surface irrigation, in relation to the amount used, the temperature of the soil, the amount of evaporation, washing of soil and yield of crop, including quality of crop received. Though philosophically there would seem to be little doubt that the propositions are well taken, sub-irrigation as an economical process has been over-pres ed by some as a mean of very greatly curtailing the amount of water used . There are those who have asserted that only one-tenth of the water applied by sub-irrigation would be found necessary to substitute for that required by surface irrigation. Such claims are the untempered claims that enthusiasts frequently make in new methods proposed. But if the claim for sub-irrigation be granted we are confronted with the cost of preparing for the application of sub-irrigation, and our practical ability to distribute it rapidly enough through the soil to meet the wants of growing plants.

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