. Circular. Agriculture; Agriculture -- United States. Fig. 4.—Cotton on plsit B 5-4, land continuously cropped and fertilized each year with harnyard manure. This plat has yielded an average of 4r)r) pounds of seed cotton per acre during the past three years. Compare with figure :'.. (Photographed .Tune 26, 1912.) but does no perceptible damage to plants belonging to the grass fam- ily, such as corn, oats, wheat, etc. In many cotton fields it causes the premature death of a large proportion of the plants. It was observed in 1912 that in a number of the rotations with cotton and corn the root-
. Circular. Agriculture; Agriculture -- United States. Fig. 4.—Cotton on plsit B 5-4, land continuously cropped and fertilized each year with harnyard manure. This plat has yielded an average of 4r)r) pounds of seed cotton per acre during the past three years. Compare with figure :'.. (Photographed .Tune 26, 1912.) but does no perceptible damage to plants belonging to the grass fam- ily, such as corn, oats, wheat, etc. In many cotton fields it causes the premature death of a large proportion of the plants. It was observed in 1912 that in a number of the rotations with cotton and corn the root-rot was much more widespread and did more damage to the cot- ton on plats which were si^ring-ploAved than on plats which were summer or fall plowed. The same condition was apparent in 1911. It was also observed in 1912 that where cotton was grown in rota- tion with corn or oats the damage due to root-rot was much less noticeable than on plats continuously planted to cotton. 1 This disease is caused by 0.:uniiiiii uitniironuii. For an account of tlie diseusc and methods of lessening its damage, see the paper entitled " The control of Texas root- rot of cotton," in Bureau of Plant Industry Bulletin 102. [Cir. 120]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Plant Industry. Washington, D. C. : U. S. Dept. of Agriculture, Bureau of Plant Industry
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Keywords: ., bookcentury1900, bookdecade1900, booksubj, booksubjectagriculture
