172 IRRIGATION PRACTICE 



pare for a long wet season, and if this same environment 

 is continued throughout the season, the plant continues 

 the vegetative processes much longer than if the moisture 

 from the earliest period is relatively low. In general, 

 we may lay down the law that the more water used, the 

 longer the growing season of the plant; the smaller the 

 quantity of water used, the shorter its growing season. 

 This may often find important applications. For instance, 

 wherever early and late frosts prevail, the moderate 

 use of water will hasten maturity; and, in hot, dry dis- 

 tricts, the moderate use of water will prevent an unneces- 

 sarily long vegetative period with rapid evaporation. 



REFERENCES 



HARRIS, F. S. The Irrigation and Manuring of Corn. Utah Experi- 

 ment Station, Bulletin No. (1914). 



WIDTSOE, J. A. The Effect of Varying Quantities of Irrigation 

 Water on the Production of Dry Matter. Utah Experiment 

 Station, Bulletin No. 116 (1912). 



WIDTSOE, J. A., and STEWART, ROBERT. The Effect of Irrigation 

 on the Growth and Composition of Plants and Different Periods 

 of Development. Utah Experiment Station, Bulletin No. 116 

 (1912). 



