. Fertilizer experiments with tomatoes . 1910 Tests with Messrs. Atkinson and Rockwell. Field No. 1. Mr. Atkinsons Field Mr. Rockwells Field No. 1. No. 1. ea C 05 oa 03 .Son oa Q. O a o 1CL alue Pf IncreDeductif Fert . .ao a -z -L- — o *- a Z— . o j, o o 03 rf E 3 fe 3 ?- 3 - o a > a aH o & c a > » oC o > Ss Z >0- >o z<Q- >o Z<<o £L 5 1260 $ $ 850 $ $ $ 6 405 52o 7 855 8 1320 980 9 1687 790 10 870 590 .27 * .98 11 1890 1310 2
. Fertilizer experiments with tomatoes . 1910 Tests with Messrs. Atkinson and Rockwell. Field No. 1. Mr. Atkinsons Field Mr. Rockwells Field No. 1. No. 1. ea C 05 oa 03 .Son oa Q. O a o 1CL alue Pf IncreDeductif Fert . .ao a -z -L- — o *- a Z— . o j, o o 03 rf E 3 fe 3 ?- 3 - o a > a aH o & c a > » oC o > Ss Z >0- >o z<Q- >o Z<<o £L 5 1260 $ $ 850 $ $ $ 6 405 52o 7 855 8 1320 980 9 1687 790 10 870 590 .27 * .98 11 1890 1310 12 1140 1315 13 1327 1315 In field number two of the test with Messrs. Atkinson andRockwell, 15 lbs. of sulphate of potash was substituted for the 20lbs. of muriate in each case as a source of potash. Dried blood wassubstituted for nitrate of soda and bone meal and basic slag wereadded to compare with acid phosphate as carriers of phosphoric. Fig. 4. Plot 6. Mr. P. W. Atkinsons Field >~o. 1. Test of 1910. Check. >Yield Bushels Per Acre. Photo Taken August 9, 1910. [Nov. 1913] Fertilizer Experiments with Tomatoes 17 acid. The test with Mr. Atkinson included a comparison betweenequal amounts of a high grade and a low grade commercial the test with Mr. Rockwell, plot 6, the check plot in Table XIIwas liken as the one with which to compare the yields of the otherplots of this field. The numbers of the plots in the following tableare not the real numbers of the plots in the two different fields, butthe pots are numbered so as to allow a consideration of both fieldsin the same table. The same is true in the following list which givesthe treatment of each plot in the table: Plot 1.—30 lbs. Acid Phosphate. Cost of fertilizer per plot $ .21 Plot 2.—3 0 lbs. Basic Slag. Cost of fertilizer per plot .2 5 Plot 3.—3 0 lbs. Bone Meal. Cost of fertilizer per plot .40 Plot 4.—2 0 lbs. Dried
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