FIELD CROPS. 633 



TnMh'll farm. Tho individual tests raiijicd from r»;5() to Din lbs. of seed cotton 

 at Kdjit^'omhp. L'(M to .").".;! llts. at Red Spring's, and 4.">r» to "•(•."» lbs. at Iredell. 

 The earliest varieties were Dozier Iniin'oved, Kinj: Improved, IbnlKe, Shine 

 Extra Early rrolitic, and Wel>l> : tlie niediiini-niatnrin;,' varieties, Cnli)e|)per 

 Improved, Cook Improved, Excelsior rroliiic. IVterlvin Improved, and Edge- 

 worth ; and the later-maturing varieties, liussell Big Holl, Black Texas Wood, 

 and Moss Improved. The highest percentage of lint was secured in Moss Im- 

 proved, King Improvetl, Brown Texas Wood, Peterkln Improved, Cook Im- 

 proved, Tool Early Prolific, Excelsior Prolific, Brown No. 1, Edgeworth, and 

 Mortgage I,ifter. With these varieties in 1004, the percentage of lint to seed 

 varied from .■>.">.42 in Excelsior Prolitic at Edgecombe to 4.''>.0;i per cent in Moss 

 Iuiprov(Hl at Iretlell. Russell Big Boll, Culpepper Improved, Edgeworth, 

 Doubleheader, and Brown No. 1 of the varieties tested possess the largest 

 sized bolls and the largest seed. The average results of distance tests at 

 Edgecombe and Red Springs during 4 years favor about 3i ft. by 16 in. at 

 Mgecombe and about 4 ft. by 16 in. at Red Springs, and the average results of 

 5 years at Iretlell favor planting 3^ ft. by 16 in. 



Notes on varieties of cotton tested in 1007 are given, varieties a(lai)ted to 

 difTerent sections <»f the State are enunierate<l, and cultural and iiu])rovenient 

 methods are suggested. 



Rotation experiments with cotton, corn, cowpeas, and oats, W. R. Dodson 

 (LousidiKi stds. Hill. III. ])it. .1-1')). — These experiments were conducted at 

 Baton Rouge and Calhouu. The fields were approximately G acres in size, and 

 one-third of the area was i)lanted each year to cotton, one-third to corn with 

 cowpeas, and one-third to rust-proof oats followed by cowpeas the same season. 

 In this rotation each plat of laud produced in 3 years one crop of cotton, one of 

 corn, one of oats, and two of cowpeas. One-half of each plat was fertilized and 

 the other half was made deiiendent upon tho rotation and the cowpeas for the 

 maintenance of fertility up to 1007. when l.")0 lbs. of acid ])hosphate per acre 

 was added to the cowpea crops. Tlx' cotton received 30 bu. per acre of compost 

 made up of 2 tons of acid phosphate, KM) bu. of stable manure, and 100 bu. of 

 green cotton see<I, the corn received 30 bu. per acre of compost made up of 1 

 ton of acid i)hosphate, and the same quantities of stable manure and green 

 cotton seed used for corn, the oats were fertilize<l with 2<h» His. of cotton-seed 

 meal and 100 lbs. of acid phosphate i»er acre, and the cowpeas with .'O ll)s. of 

 a<-id iihosphate and .'lO lbs. of kainit. 



At Calhoun the cotton yielded the largest money returns on both fertilizetl 

 and unfertilized land. Oats and cowpeas closely api»roximated the value <tf the 

 cotton crop on the unfertilized land. The average of l."i cro]>s of fertilized cot- 

 ton was l,r)13 lbs. of seeil cotton, as compared with 466 lbs. of seed cotton on the 

 imfertilized part of the plat. The estimated cost of the fertilizer for cotton 

 was $."».r)0, for corn .$(>, and for oats .$2.0.") iter acre. The fertilizer apiilitnl gave 

 an average gain <tf 1,047.S lbs. of seinl cotton, 21.00 bu. of corn, and 2.").4 bu. of 

 oat.s. The average yield of corn and oats aniounttnl to 31.4 bu. and 41. S bu., 

 respectively, on the fertilized land, and 0.41 bu. and 16.4 bu., n'Spectively, on the 

 unferfiliziHl soil. In the lieginning of these tests the fertilizi'rs used were ai)- 

 plied without profit an<l even at a loss, but later when the soil had again been 

 brought up to a certain degree of fertility good i»rotits were stvuretl. 



The results of 10 years' work at Baton Rouge resulted in an average yield 

 of 1.242.6 lbs. of seed cotton, 45.1 bu. of corn, and 46.r> bu. of oats on the ferti- 

 llztfl parts of the plat, as comi»ared with 1,034.3 ll)s. of cotton, 35.8 bu. of corn, 

 and .35.2 bu. of oats on the unfertiliztHl portion of the plat. The largest money 

 value, !?47.42 per acre, was secured from cotton, as against ?,43.02 from oats and 



