84 IMPROVEMENT OF THE WHEAT CROP IN CALIFORNIA. 



Page, 



Humus, addition to soil by green-manure crops 1 2-15 



deficiency in wheat lands, California, causes 9-10 



effects on soil 9, 12 



improvement of sandy lands 12 



Introduction to bulletin 7-8 



Kharkof wheat. See Wheat, Kharkof. 

 Kubanka wheat. See Wheat, Kubanka. 



Lands, wheat, ( 'alifornia, cleaning of weeds, directions 18-19 



Legumes. See Manure, green, and nitrogen. 



Manure, green crops, California, effect on yield of wheat 15-18, 31 



seeding and handling, directions 12-18, 31 



time and method of handling 13-15 



Marouani wheat. See Wheat, Marouani. 

 Medeah wheat. See Wheat, Medeah. 



Mill, fanning, necessity for cleaning and grading wheat 23, 31 



Minnesota No. 66 wheat. See Wheat, Minnesota No. 66. 

 163 wheat. See Wheat, Minnesota No. 163. 



Modesto, Cal., experiments with deep plowing and green manuring 15-18 



Nitrates, addition to soil by leguminous crops 13 



deficiency in wheat lands of California 9 



soil, necessity in wheat production 9-10 



Nitrogen, addition to soil by green-manure crops 12-15 



Oakdale Milling Company, milling tests of wheat varieties, 1909 26, 28-29 



Peas and rye, use as green-manure crops 13-15 



Canadian field, value as green-manure crop 13, 16, 31 



seed, quantity per acre for green manure 13 



Plowing, deep, effect on yield of wheat in California 15-18, 31 



wheat lands, necessity, importance, and results f 11-12, 15-18 



Propo wheat. See Wheat, Propo. 



Protein, content in wheat, effect of time of seeding in ( 'alifornia 29-30, 31 



relation to flour value 22 



production per acre in wheat, relation of quality of gluten 22 



Purple Straw wheat. See Wheat, Purple Straw. 



Rust, resistance of wheat, important quality in California 22 



Rye, Abruzzes, value as green-manure crop 13, 31 



and peas, use as green-manure crops on wheat lands, California. 13-15 



vetch, use as green-manure crops on wheat lands, California 16 



seed, quantity per acre for green manure 13 



Sacramento Valley, California, green-manure crops adaptable 13 



wheat variety tests 19 



San Joaquin Valley, California, green-manure crops adaptable 13 



wheat variety tests 19 



Saumur de Mars wheat. See Wheat, Saumur de Mars. 



Scofield, C. S., importation of Fretes wheat seed 26 



Seed, peas, quantity per acre for green manure 13 



rye, quantity per acre for green manure 13 



selection, wheat, importance in California 23-24 



wheat, grading necessary in careful selection 23 



improvement by better methods of selection 23 



large and small, comparative value 23 



plat, directions for planting and use 23-24 



purity, importance to growers in California 29 



178 



