1917] FIELD CROPS. 329 



54.003 in. for the 6-month period from April 1 to October 1. The total evapora- 

 tion varied from 49.92 in. in 1914 to 58.901 in. in 1916. 



The crop data show the yields per acre of railo maize, Kafir corn, sorgho, 

 broom corn, Sudan grass, millet, covs'peas, beans, cotton, corn, winter wheat, 

 winter rye, spring wheat, oats, and barley under various cultural conditions. 

 From the results obtained it has been concluded that summer fallowing and 

 subsoiling are relatively unprofitable, while fall and spring plowing and listing 

 are deemed to be the methods best adapted for use in preparing the land. 



Tests with sorghum planted in rows 8, 16, 24, 32, and 44 in. part, respectively, 

 conducted during 1914, 1915, and 1916 gave the highest yields with planting 

 widths of 24, 32, and 44 in. 



Date-of-planting tests with Mexican June corn gave the best results with 

 plantings between May 1 and June 10. Tests with Dwarf Milo gave the best 

 results with plantings made between May 10 and June 10. 



Tabulated data are presented showing the effect of the previous crop on 

 the yields of the several crops listed above, obtained on land cropped con- 

 tinuously and on land where systematic rotation has been practiced. 



Variety tests begun in 1912 are reported for grain sorghums, forage sorghums, 

 millets, cowpeas ,broom corn, beans, cotton, corn, peanuts, and potatoes. 



Progress report of Substation No. 3, Angleton, Tex., 1909—1914, N. E. 

 Winters (Texas Sta. Bui. 197 {1916), pp. 3-20, figs. 4).— Varietal, rotation, 

 and cultural tests with corn, cowpeas, and oats, and field tests with leguminous 

 forage crops, sorghum for forage, Japanese sugar cane, Sudan grass, and 

 dasheens are reported for the seasons of 1913 and 1914. 



The Strawberry, Thomas, and Chisholm corn varieties gave the highest yields 

 based on a 2-year average, 27.78, 27.3, and 2G.21 bu. per acre, respectively. 

 The lowest-yielding variety was Collier Excelsior, with 18.24 bu. The highest 

 average yield, 18.36 bu., in seeding-rate tests was secured from rows 3 ft. apart, 

 with the stalks 2 ft. apart in the row, giving 7,260 plants per acre. Different 

 row widths, with various distributions of the plants in the row, showed prac- 

 tically no variation in yields so long as the total stand remained constant. On 

 sowing cowpeas in 1913 between the corn rows when the corn was beginning to 

 tassel, a yield of 20.32 bu. of corn was obtained, as compared with a yield of 17.1 

 bu. in 1914 from corn grown alone. A comparison of planting dates for the 

 cowpeas indicated that plantings made with the corn in full tassel gave in- 

 creased yields of corn over earlier plantings. A rotation of cotton, cowpeas for 

 seed, corn, and oats, with cowpeas plowed under as a green manure, showed 

 increased corn yields of 2.27 bu. in 1913 and 9.94 bu. in 1914 over corn grown 

 continuously. 



Oats were grown for hay only. Rust Proof, with a yield of 968 lbs., and 

 Appier, with 836 lbs. of cured hay per acre, giving the best results. Frazier 

 Red Rust Proof gave the lowest yield, 678 lbs., while Virginia Gray Winter failed 

 entirely, due to rust. The quality of 100-Bushel Oats was superior to that of all 

 other varieties, the yield being 682 lbs. of hay. Oats grown in rotation in 

 1914 produced 1,235 lbs. of cured hay per acre, while only 528 lbs. was secured 

 from oats grown continuously. 



Based on a 2-year average yield of cowpeas for seed and forage, New Era 

 with 18.89 bu., Whippoorwill with 17 bu., and Groit with 14.88 bu. per acre, 

 gave the highest yields of seed, with Blackeye lowest with only 2.77 bu. For 

 hay production the Iron variety was first, with a yield of 2,571 lb.s. of cured 

 hay per acre, Groit second with a yield of 2,270 lbs., and Red Ripper lowest 

 with 1,210 lbs. Seeding rates of 6, 12, and 18 lbs. per acre for hay production 

 in 1913 showed yields of 2,640, 3,300, and 3,685 lbs. of cured hay, respectively. 

 The results obtained with cowpeas grown in rotation, as compared with con- 



