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REGIONAL PROJECTS 



NC-U6 Soil Moisture Storage and the Use of Water by Agronomic 

 Crops . a. To determine the factors affecting the time 

 and volume pattern of soil moisture use by agronomic crops, 

 b. To develop quantitative methods to measure the water 

 stress in plants, c. To determine field evapo-transpira- 

 tion rates and relate them to meteorological factors. 



Cooperating station: Nebr. I-D 



W-39 Effects of Fluorine (as fluorides) on Plants, Animals, 

 and Soils' ^ Tl To conduct research on the effects 

 (assimilation, physiological reactions, and other metabolic 

 processes) of different levels of fluorides in specified 

 plants and animals. 2. To investigate the accumulation of 

 fluorides in soils, their reaction in the soil and their 

 effect upon plants. 3» To develop and/or evaluate sim- 

 plified or other methods for determination of atmospheric 

 fluorides. U. To develop techniques for the alleviation 

 of fluoride injury in plants and animals. 



Cooperating stations: Utah I-A and G; Calif., Idaho, Wash. I-I 





