INDEX. 37 



Page. 

 Wheat, White Australian, yield, comparison with Chul and Fretes wheats in 



California 25, 27-28 



Yantagbay, test in California 20 



Yellow Gharnovka, test in California 20 



yield, California, decrease, causes and remedies 8-19 



effect of green-manure crops and deep plowing 15-18 



W T hite Australian wheat. See Wheat, White Australian. 



Wollny, statement of effect of humus on soil temperature - 9 



Yantagbay wheat. See Wheat, Yantagbay. 

 Yellow Gharnovka wheat. See Wheat, Yellow Gharnovka. 

 Yield, wheat. See Wheat, yield. 

 178 



o 



