COST OF PRODTCTXG SUOAR BRETS IX T'TAH AXD IDAHO. 



21 



and indicate a range in acre costs from SlOO to S150. 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. Apparenth^ the point of 

 diminishing returns was not reached on these farms. 



Table XVIII. — Variation in the cost per acre — all districts (1918-1919). 



Cost per acre. 



$100 and under 

 S100toS12o.... 

 $125toS1.50.... 



$150to$175 



Over $175 



Num- 

 ber of 

 farms. 



Cumu- 

 lative 

 per- 

 centage 

 ofnum 

 ber of 

 farms. 



8.2 



40.0 



76.8 



90.4 



100.0 



Acres. 



Seeded. 



213. .5 



1,011.05 



1, 076. 53 



290.25 



147.50 i 



Har- 

 vested. 



Cumu- 

 lative 1 

 per- I 

 centa.ee 

 of har- 1 

 vested I 

 Jaereage. 



Yield. 



213.5 



8.1 



991.05 



45.5 



1,031.53 



84.4 



280.25 



95.0 



132.50 



100.0 



Tons. 

 2, 036. 6 

 12, 252. 3 

 15,120.83 

 4, 427. 50 

 2,350.25 



Cumula- 

 tive vield 



Tons. 

 2, 036. 6 

 14,288.9 

 29, 409. 73 

 33,837.23 

 36,187.48 



Cumu- 

 lative 

 per- 

 centage 

 of yield. 



5.6 

 39.5 

 81.3 

 93.5 

 100.0 



Yield 

 per 

 acre. 



Tons. 

 9.5 

 12.4 

 14.7 

 15.8 

 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. Some 

 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 lajnng 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 \vnth 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 liO per cent of the best acreage repre- 

 sented on the farms included in this survey was planted on land 



