Journal of Agricultural Research 
Vol. XXIV, No. 9 
780 
climatic conditions, to such an extent that no specific recommendations 
can be made as to the best systems of planting. Where irrigation is 
practiced, and the moisture supply controlled, moreregular yields would be 
expected under the different systems of planting. It is hoped that these 
studies on sunflowers grown under irrigation will be continued. The re¬ 
sults in this paper are representative of what may be expected when 
sunflowers are grown in sections of the United States where climatic 
conditions and altitude are similar to those in the Palouse country. 
The choice of the system of planting sunflowers, grown without irriga¬ 
tion, must necessarily rest with the farmer, depending upon whether it 
is more feasible to harvest and silo the large type of sunflowers rather 
than the smaller type. In choosing the system of planting, the farmer 
should consider the difference in labor involved in harvesting the large or 
small type of sunflowers. 
