. Bulletin. 1901-13. Agriculture; Agriculture. 16 MISCELLANEOUS PAPERS. variation in the methods occurring in connection with the different cropping systems followed on the different plats. CHARACTER OF THE SOIL. The land on which these experiments were conducted consisted partly of heavy, dark-colored alluvial soil, inclined to be wet. The south end of the plats extended to a lighter type of soil of medium character. The results were practically the same on the two types of soil. This land had been abandoned to Johnson grass for some years and was in the middle of a large field which was badl
. Bulletin. 1901-13. Agriculture; Agriculture. 16 MISCELLANEOUS PAPERS. variation in the methods occurring in connection with the different cropping systems followed on the different plats. CHARACTER OF THE SOIL. The land on which these experiments were conducted consisted partly of heavy, dark-colored alluvial soil, inclined to be wet. The south end of the plats extended to a lighter type of soil of medium character. The results were practically the same on the two types of soil. This land had been abandoned to Johnson grass for some years and was in the middle of a large field which was badly infested and in which cotton had been grown for some years. At the time these experiments were undertaken it was believed by many that the eradi- cation of Johnson grass was impracticable on account of the cost: but since that time the writer has learned of many farmers who have com- #o/?r# pletely rid their farms of this pest by methods quite similar to those used in these experiments. Methods radically different from these have also been reported to be completely successful, though the writer has no personal knowledge to substan- tiate the claims made for the various methods. METHODS OF TREATMENT. The various methods of treatment will be con- iC*yr sidered in the order of their effectiveness. Fig- ure 1 shows a diagram of the plats upon which the experiments were conducted. The general plan of the experiments was as follows: Plats 1 and 2 were devoted to rye and barley, respec- tively, during the winter, cowpeas the first sum- mer, cereals again the next winter, and cotton the second summer. Plat 3 was devoted to cot- ton both years. Plat 4 was left bare the first year and devoted to cotton the second year. The Diagram of experi- triangular plat Qn the eagt gide 0f the field plat mental plats on the farm . • of Mr. j. b. Gay, Coium- 5 in the diagram, was left in Johnson grass for bus, Tex. ^.jle Ba^e o£ comparison- The preliminary treatment of plats 1, 2, 3. and 4 was id
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