20 DIVISION OF WATER RESOURCES 



crops. Aloiiji' with these crops, of course, fjo otliers <;enerally yielding 

 ,^ a loAvcu- jrross income, such as the more common varieties of grapes, 



deciduous fruits, alfalfa, cotton, grain, ntid miscellaneous field crops. 

 The first step in the ]iresent study was to assemble or gather for the 

 more repi-esentativc or more important crops grown in the areas the 

 following data : 



1. Cost of producing and harvesting the crop, not including the cost 

 of irrigation water or interest on the farm investment. 



2. The usual range of yield and price. 



I 8. PrescMit irrigation water costs, including both gravity and pumped 



supplies. 



4. The general ada|)tability of tlic ci-o]) to tbe laiuls of the area, and 

 the outlook. 



Cofffs of Producfimi. — These have been obtained most largely from the 

 Agricultural Extension Service of the College of Agriculture, but also 

 from the Farm Management Section of the College of Agriculture 

 ami directly fi-om a large iiumber of growers; also, in the ease of citrus 

 fruits, from the California Citrus Ijeague. Information obtained from 

 liu' Agricultural K.xteiisiou Sei-vice was gathered by the county farm 

 advisors in connection with their enterpri.se efficiency studies. 



In collecting their records the county farm advisors selected grower 

 eoo]ierators whom they sui)plie(l with the necessary blaidvs and who 

 subuutted monthly reports of all costs for both labor and materials. The 

 data in these records have been retabulated in order to eliminate 

 interest on the investment and costs of ii-rigation water, the latter 

 including assessments, water tolls, interest and d(>prtM'iation on pumi>ing 

 eciuipment, or one or more of these items. 



Infornuition supplied by the Farm Management Section is in the 

 form of general figures- and represents its conclusions as to production 

 costs from long observation and field study. The material supi^lied by 

 the Califoi-nia Citrus League was obtaineil by that organization throuuh 

 personal interviews with growers over a four-year period. 



Yields (iiid Prices. — The enterprise efhciency studies of the Agricultural 

 Extension Service show both yields and i)rices. and its figures, as well 

 as others gathered from packing houses and other sources, have been 

 used to arrive at a range within which variation nuiy normally occur. 

 The ranges taken into considei-at ion in this i-e])()i-t do not include either 

 maximum or minimuin figures, but arc sufficiently wide to cover the 

 usual cases. Tlif lower figures riipresent conditions under which the 

 cost of production is greater than the iiu'ome, while the higher figui'cs 

 i-epresent \i<'lds and pi'ices well above the a\'eT-age. but not excei)t ional. 



Present Itr'ujdlion Wdivr Cosls. — Except in the case of irrigation dis- 

 tricts, for which information is on file in the (tfliee of the State Engiiu^er, 

 present irrij.'at ion water costs have been obtained through field investi- 

 gation. In the ease of eom])anies, it has been usual to obtain desired 

 i-ecords from the secretaries and supei-intejuients. Where desired 

 inforination was not on record in the office of the companies, the l)est 

 estimates po.ssible were obtained. A nuijorily of the companies furnish 



