FIELD CROPS. 963 



In reporting the data for carrots no results are considered at one of the farms for 

 1904. The average yield of 10 varieties grown on the farms for 5 years, including 

 1904, was 20 tons 1,663 lbs. per acre from the first sowing and 17 tons 1,196 lbs. per 

 acre from the second sowing. Giant White Vosges and New White Intermediate 

 were the leading varieties, each yielding over 23 tons per acre from the first sowing. 

 Ontario Champion, Mammoth White Intermediate, Improved Short White, and 

 White Belgian also gave an average yield of over 20 tons per acre. The average 

 yield of 10 varieties grown in 1904 was 21 tons 646 lbs. per acre from the first sowing 

 and 17 tons 1,229 lbs. from the second. 



The data for sugar beets excluded the results at one of the farms in 1904. The 

 average yield of 6 varieties for 5 years was 23 tons 168 lbs. per acre from the first 

 sowing and 20 tons 652 lbs. from the second; while 8 varieties tested in 1904 gave an 

 average yield of 20 tons 843 lbs. per acre from the first sowing and 17 tons 1,860 lbs. 

 from the second. Red Top Sugar was the heaviest yielder, followed by Danish 

 Improved and Danish Red Top, the average yield of these varieties for 5 years being 

 over 30 tons per acre. 



The average crop of 41 varieties of potatoes on all the experimental farms for 1904 

 was 374 bu. 18 lbs. per acre. Thirty-one varieties under test for 5 years ranged in 

 average yield from 320 bu. 52 lbs. to 421 bu. 33 lbs. per acre. Rose No. 9, Late 

 Puritan, Carman No. 1, Uncle Sam, Burnaby Mammoth, Seedling No. 7, and Dreer 

 Standard, enumerated in the decreasing order of yield, show an average production 

 of over 400 bu. per acre. 



The culture substations, A. V. Stubenraitch (California Sta. Rpt. 1904, pp- 134- 

 196, figs. 2). — A report on field work in continuation of that previously noted (E. S. 

 R., 15, p. 764). On the test-culture plats at the Foothill Substation the following 

 yields of green substance per acre were secured from the 5 best plants grown in 1903: 

 Berseem 18,295, white lupine 11,477, horse bean 11,003, and Egyptian lupine 9,641 

 lbs. The berseem was sown October 29, and experience has shown that early sow- 

 ing is imperative. Sowings of white lupine made October 22 gave practically double 

 the yield secured from sowings made October 1 and November 1 and 15. The use 

 of 200 lbs. of seed per acre gave a much better yield than the use of 100 or 150 lbs., 

 but 95 lbs. when sown in drills gave nearly as large a yield as 201) lbs. broadcasted. 

 Several of the crops successful the year before gave smaller yields this season. These 

 tests included crops for forage and green manuring, grains, and grasses, and the 

 results obtained on all plats are given in a table. 



In nearly all cases this year the best crops of hay were obtained from the use of 

 nitrate of soda on both red and granite soils where phosphates had been used the 

 previous year. Sulphate of potash at the rate of 300 lbs. per acre, given with nitrate 

 of soda, proved unprofitable. When used alone, nitrate of soda gave the largest 

 profits given in a single application at the rate of 160 lbs. per acre. Data for all hay 

 plats are recorded. 



At the San Joaquin Valley Substation all test plats were under irrigation. The 

 largest yield of green forage, 48,853 lbs. per acre, was obtained from Medicago pulvi- 

 nala aculeata. All plants of the genus Medicago gave promising results. The Tan- 

 gier pea (Lathyrus tingitanus) produced 38,433 lbs. of green substance per acre, while 

 the Ochrus pea ( A. ochrus), one of the best winter crops in other sections, gave only 

 5,029 lbs. The yields of other species of Lathyrus were as follows: L. sativus 24,403, 

 L. cicer 23,137, L. annum 15,130, and L. clymenum 12,069 lbs. per acre. The best 4 

 vetches were cordate-leaved vetch, yielding 23,132 lbs.; sweet vetch, 22,415 lbs.; 

 hairy vetch, 21,265 lbs., and Vicia varta, 20,878 lbs. Horse beans and lupines gave 

 satisfactory results. One variety of fenugreek failed entirely, while the other proved 

 promising, with a yield of 15,518 lbs. of green forage per acre. The common lentil, 

 the chick pea, and large water grass (Pa spa bun dilalatain) gave promising results. 

 Berseem seemed unsuited to the Tulare region. 

 28151— No. 10—05 3 



