. Fertilizer experiments with tomatoes . .4 8. 298 1053. 506. .3 9. 279 .3 10. 289 .4 333. 566. 210. .1 11. 297 504. 1118. .1 12. 277 6. 518. .7 13. 269 18. [Nov. 1913] Fertilizer Experiments with Tomatoes 11 Discussion of the Results of the Above Tests. The following table presents for comparison the average grossincrease in value per acre for each plot in the first five fields, andthe average net increase in value per acre after deducting the costof fertilizer: Table VIII. Shourin
. Fertilizer experiments with tomatoes . .4 8. 298 1053. 506. .3 9. 279 .3 10. 289 .4 333. 566. 210. .1 11. 297 504. 1118. .1 12. 277 6. 518. .7 13. 269 18. [Nov. 1913] Fertilizer Experiments with Tomatoes 11 Discussion of the Results of the Above Tests. The following table presents for comparison the average grossincrease in value per acre for each plot in the first five fields, andthe average net increase in value per acre after deducting the costof fertilizer: Table VIII. Shouriny average gross and net increase per acre from use offertilizer in first five fields. Plot 1 Plot 2 Plot 3 Plot 4 Plot 5 Plot 6 Plot 7 Gross Increase $ $ $ $ $ Check $ Net Increase Check Plot 8 Plot 9 Plot 10 Plot 11 Plot 12x Plot 13x Gross Increase $ $ $* $ $ $ Net Increase * * Decrease. x Average of three Fig. 3. Plot 8. Mr. I. N. Spielmans 1909 Test. Nitrate of Soda and Acid Bushels Per Acre. Photo Taken August 25, 1909. It will be seen from an examination of the above table that inevery case but plot 10 the fertilizers applied, gave an average netincrease in the value of the product over that of the unfertilized orcheck plot, ranging from $ to $2, per acre. The largest increase was secured from plot 11 which was ahome-mixed complete fertilizer costing more than that applied toany other plot. The plant food contained in this fertilizer was theequivalent of what would be found in a commercial fertilizer 12 W. Va. Agrl. Experiment Station [Bul. 142] analyzing nitrogen, 7% phosphoric acid and 16% potashapplied at the rate of 600 pounds to the acre. The second largest net increase was obtained from the use ofa combination of muriate of potash and acid phosphate used atthe rate of 20 0 pounds of the former, and 30
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