COST OF PRODUCING SUGAR BEETS IN UTAH AND IDAHO. 21 
and indicate a range in acre costs from $100 to $150. It will be noted 
that as the cost per acre increases the yield per acre also advances. 
Between the 18 farms in group one and the 21 farms in group five 
there is a difference of 8.2 tons per acre. Apparently the point of 
diminishing returns was not reached on these farms. 
TaBLe X VIII.— Variation in the cost per acre—all districts (1918-1919). 
Cumu- Acres. Cumu- | 
lative lative ae aan 
Num-|_ per- per- _ | lative | Yie 
Cost per acre. ber of | centage centage} Yield. pesos ee per- per 
farms. | of num- Har- | of har- yletc| centage| acre. 
ber of | Seeded. vested, | vested of yield. 
farms. acreage. 
Tons. Tons. Tons. 
$100 and under....-..- 18 8.2 PHN 159 21355 8.1 | 2,036.6 2, 036.6 5.6 9.5 
$100 to $125..... SeuGee 70 40.0 | 1,011.05 991.05 45.5 | 12,252.3 | 14, 288.9 39.5) 12.4 
SPH TOL WHS secanesaoe 81 76.8 | 1,076.53 | 1,031.53 84.4 | 15,120.83 | 29, 409.73 81.3] 14.7 
SU50uOSlbee- see oe 30 90. 4 290. 25 280. 25 95.0 | 4,427.50 | 33, 837.23 93 PO Lors 
Overs lipases 21 | 100.0 147.50 132.50 | 100.0) 2,350.25 | 36,187.48 | 100.0) 17.7 
CROP ROTATION. 
Within recent years the question of introducing systematic crop- 
ping on the farms of this general region has been given some atten- 
tion. While it is true that there are some farms in each area where 
individual crops are grown continuously upon the same land, the 
value of a good rotation is conceded by progressive farmers. How- 
ever, it is apparent that good working systems have been adopted on 
relatively few-farms. Some farmers are limited by the number of 
crops which may be grown under their individual conditions. Scme 
farms contain dry land as well as irrigated land. The dry land is 
of necessity devoted to the production of grain exclusively, whereas 
the irrigated land is set aside for alfalfa, sugar beets, and truck, fruit, 
or garden crops. It will be seen that this arrangement makes it im- 
possible for some of these men to use grain at regular intervals in 
rotation with sugar beets. Each crop has its adaptations, and these 
characteristics must be taken into account in laying out a cropping 
system. With this situation facing the grower, there is a natural ten- 
dency to allow sugar beets to follow sugar beets on the same field 
for several years. The location of the field with reference to beet 
dumps and roads often has much to do with its selection for sugar 
beets. 
The survey schedule contained two questions which were used for 
the purpose of determining the crop or crops which preceded sugar 
beets; also the crop or crops which were or would be planted after 
sugar beets. A summary of this analysis is given in Table XIX. 
In the Lehi district nearly 60 per cent of the best acreage repre- 
sented on the farms included in this survey was planted on land 
