. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 10 BULLETIN 1120, U. S. DEPABTMEFT OF AGRICULTURE. explains why no canker occurred in those portions of the rows of young flax plants shaded by the vertical strips of canvas, while at the same time some plants were cankered in the portions of the rows not so /S30 //.Ji? /.acPM. ^oo TEMPER/ITURES ^ ffO'/.'S -TEMP£R/m//?£S /A' v5^!%3f arC'^/Vi^S 5a 49 48 .^ 47 kl 46 ^ 45 ^ 44- â â â â â â â â â ! ! ' â ... 1 1 â n / â v« 1 /^ <, ^. A r ^ ^^^jl / / ! K^ k ^ / ] n\ ( / 1 ^ ^' / i
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 10 BULLETIN 1120, U. S. DEPABTMEFT OF AGRICULTURE. explains why no canker occurred in those portions of the rows of young flax plants shaded by the vertical strips of canvas, while at the same time some plants were cankered in the portions of the rows not so /S30 //.Ji? /.acPM. ^oo TEMPER/ITURES ^ ffO'/.'S -TEMP£R/m//?£S /A' v5^!%3f arC'^/Vi^S 5a 49 48 .^ 47 kl 46 ^ 45 ^ 44- â â â â â â â â â ! ! ' â ... 1 1 â n / â v« 1 /^ <, ^. A r ^ ^^^jl / / ! K^ k ^ / ] n\ ( / 1 ^ ^' / i X / '7 / . â i ^ ^% - ,A rv 1 j ! !$ 2Q ->J -^ " "^-^ i 1 -'' V, 1 1 . â '' 1 r 1â â ^ 26 1 1 1 ZS _ _ ^- J _ _ '±n:iq ^.M. /a30 //.SO /.OO^M. 2jDO Fig. 2.âDiagram showing the variations in soil-surface temperatures in different parts of plat C at Fargo, N. Dab., on July 18,1919. Table 7 also shows that higher soil-surface temperatures occurred where the heavy dark soil had not received a surface application of light yellow sand. This probably explains why more canker occurred in the portions of the plats where sand had not been applied, as sho%vnby the data in Tables 2 and 3. On July 18, 1919, when the soil-surface temperature data shown in Table 7 were taken, the sun shone brightly until p. m., when it became obscured by clouds. About 4 o'clock it began to rain. Previous to this the soil was fairly 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. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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