\ 



1920] ' fiELD CROPS. 733 



of conifers and deciduous trees listed separately as injured or killed dnriiij,' 

 cold weather, particularly that of the winter of 191G-17. 



A simplified iionabsorbiii}; mounting for porous porcelain atinonieters, 



B. E. Livingston ami V. Thonk {ticicuce, n. ser., 52 {l'J20), No. /.{.J//, pp. 

 85-87). — A description is jriven of a simplified form (if mountiufr for atiudineters 

 which it is believed will prove of value in obtaining records during rainy 

 weather. 



FIELD CROPS. 



[Report of field crops work in Arizona], G. E. Thompson and F. J. Crider 

 (Arizona Sta. Rpt. 1918, pp. 287-295, 300, 301, 310, 311, figs. 5).— This reports 

 the progress of work along lines similar to those previously noted (E. S. R., 

 41, p. 331). 



Careful observation on the growth and yields of 17 varieties of each indi- 

 cated that soy beans were decidedly inferior to cowpeas for conditions at the 

 Salt liiver Valley farm. The soy beans shriveled badly and were of inferior 

 quality. Soy bean varieties giving most promise were Biloxi, a late upright 

 sort; Wilson No. .5, a medium maturing variety; and the small early Ito San. 

 Promising cowpea varieties included Groit, Brabham, Red Ripper, and Two 

 Crop Clay. It is stated that results show tliat cowpens can be used successfully 

 as a green manure«crop after wheat. 



In a limited test of fall-sown field peas, Warsaur led in seed yied and vine 

 growth. Studies of four velvet bean varieties planted June 14 .showed the 

 Osceola to be of promise and suggested that earlier planting %vas necessary. 

 Although tepary proved best in tests of table beans, the results were held far 

 from satisfactory on account of damage from the lesser cornstallv borer. This 

 insect destroyed practically every variety of beans on the farm, attacking cow- 

 peas and sorghums to a lesser degree. 



Corn proved unsatisfactory in the Salt River Valley, with the best yield 

 coming from selected strains of Mexican June. This year's work, in confirma- 

 tion of previous results, was held to indicate that sorghum varieties properly 

 handled are more profitable than corn in this section. 



Milo, hegari, and kafir with yields of 72, 65, and 40 bu. per acre led the 

 sorghum varieties in grain production. It was observed that dar.'^o was in- 

 ferior to the other sorghums from both grain and fodder standpoints. 



In wheat variety tests Early Baart averaged 45 bu. per acre, followed by 

 Red Turkey. Club wheat and Sonora made good yields, but the grain quality 

 was inferior to that of Early Baart. Texas Red oats with yields ranging from 

 90 to 95 bu. per acre and common G-rowed barley averaging G6 bu. were the 

 highest in their respective tests. Rye was less valuable than either oats or 

 barley, and buckwheat was considered a complete failure. 



Volunteer cotton proved decidedly unprofitable, producing many rotten or 

 moldy bolls with weak, short fiber and a low lint percentage. 



Seasonal conditions at the Prescott dry farm during 191S were le.ss favor- 

 able than for a number of years precetling. Creditable silage yields totaling 

 125 tons were secured from Club Top sorghum, darso, kafir, milo, and corn. 

 The grain yields of all were very light. Potatoes and Canada field peas were 

 failures, and sweet clover failed to make a satisfactory stand. Two cuttings 

 of Sudan grass hay were made, and abnut 4.50 lbs. of seed per acre were har- 

 vested. 



At the Sulphur Springs Valley dry farm, the results of.the mmirrigated crops 

 were said to be of small value on account of the extremely dry weather, ftfexi- 

 can June corn produced 3.300 lbs. of silage per acre without irrigation, but 



