CONTENTS 



XIX 



the crop, 442 ; Merits of the different methods, 443 ; 

 The treatment of the grain after harvesting or thrashing, 

 444 ; Thrashing, 445. 



CHAPTER XVI 



CEREALS UNDER IRRIGATION 



Clearing and leveling , 446 ; The border method of 

 irrigation, 447 ; Flooding in checks, 448 ; Furrow or 

 corrugation method, 449 ; Comparison of methods, 450 ; 

 Succession of crops, 451 ; Preparation of the soil for 

 seeding, 452 ; When to irrigate, 453 ; Time of irrigating 

 spring grain, 454 ; Winter irrigation, 455 ; Fall irrigation 

 where winter rains are lacking, 456; The quantity of 

 water required, 457 ; Duty of water, 458 ; Duty of water 

 and water requirement, 459 ; Duty of water in Idaho, 

 460 ; Duty of water in Wyoming, 461 ; Duty of water in 

 Utah, 462 ; Increasing the duty of water, 463 ; Making 

 the most of the precipitation, 464 ; The yield an acre- 

 foot, 465 ; Seeding, 466 ; Wheat, 467 ; Oats and barley, 

 468 ; Effects of irrigation on the crop, 469 ; Cereals as 

 cover-crops, 470 ; Cereals as nurse crops, 471 ; The alkali 

 menace, 472 ; Prevention of alkali, 473 ; Resistant crops, 

 474 ; Reclamation, 475 ; Control of the alkali, 476. 



420-438 



CHAPTER XVII 

 CEREAL PESTS WEEDS 



Weeds : Weeds are injurious to small grains, 477 ; 

 Habits of growth, 478 ; Annual weeds, 479 ; Dissemina- 

 tion of annual weeds, 480 ; Corn cockle or purple cockle, 

 481; Wild mustard or charlock, 482; Tumbling mus- 

 tard, 483 ; Chess or cheat, 484 ; Common ragweed, 485 ; 

 Penny cress or French weed, 486 ; Wild oats, 487 ; 

 False wild oats, 488 ; Pigeon weed or wheat-thief, 489 ; 

 Sunflower, 490; Common vetch, 491; The Russian 

 thistle, 492 ; Other tumble weeds, 493 ; Wild buckwheat, 

 494 ; Buffalo bur or bull nettle, 495 ; Other annual 

 weeds, 496 ; Biennial weeds, 497 ; Bull thistle, 498 ; 

 Green tansy mustard, 499; Evening primrose, 500; 



439-470 



