Cross fertilized varieties as follows: 32. Diehl and White Amber. 33. Armstrong and White Amber. 34. Clawson and Treadwell (pollen of the former). 35. Treadwell and Clawson (pollen of the former). 36. Asiatic Wheat (failed to germinate). As will be seen by the preparation and sowing, the chances were rather poor for the wheat to do well, as the field was a stiff sward and had been in meadow that year. We had no drill by which definite quantities of seed could be regularly sown in small plats, and hence the quantity was not taken. The varieties that seemed to do best were mostly of the red and amber wheats. A few white varieties promised well. Nos. 1 to 20, inclusive, were white wheats; 21 to 29 inclusive, red wheat, and 30 and 31 amber varieties. Of the white varieties, Nos. 1, 2, 4, 7, 8, 12 and 14 did well. Of the red varieties, Nos. 22, 23, 25, 28 and 27 did well. Of the amber varieties, the amber, sometimes called Michigan amber, did best. Of all the varieties compared, Nos. 1, 12, 22, 23, 28 and 30 did about equally well. These, together with several cross-fertilized varieties, will be tried another year. In the spring (April, 1880), the wheat which had stood the open winter was surveyed into 55 plats, 50 of which contained 5 square rods each, or 1-32 part of an acre. The remaining 5 contained 3 square rods each. Each plat was 5 rods long and 1 rod wide. The general plan of the ground is according to the accompanying diagram. The series of plats are designated by letter, while the plats in each series are numbered. The letter F points. out the plats on which the fertilizer was sown. Fertilizer was sown on each alternate plat in each series. Series A, B, C and D were harvested on June 22d; series E and F on June 23d. By this unfortunate occurrence the results of 3-PURUE UNI. these series can not be compared with each other. Circumstances over which we had no control caused this arrangement. The yields were separately weighed in the straw, threshed in one-half day, and the wheat carefully weighed. The difference between the original weight in straw and that of the wheat was assumed to be the weight of the straw. In threshing, the yield from plat 10, series A, was mixed with outside wheat, so that the weight could not be ascertained; hence that number is left blank. The results of the experiment are compiled in the following tables: 4134 *54% 44% *5134 484 *452 4234*47 47% *444 52 *45% 37% *49% 50% *4834 43% 482 53 47 46 454 In this table the yield on numbers 6 to 10 of series E are computed at the same rate for 5 square rods for comparison. Salt. A 20.26 22.93 20.67 25.20 25.33 28.93 22.80 24.27 24.00 B. meal... B 24.00 24.80 22.53 25.20 23.73 28.00 22.13 21.33 25.33 27.73 Guano.... C 26.80 23.73 23.60 25.87 24.13 23.60 32.93 23.60 28.80 25.33 B. & Bone D 22.93 27.73 22.27 29.10 23.73 27.60 25.73 24.27 22.80 25.20 Gypsum..E 22.93 25.33 23.60 | 27.73 | 24.27 20.00 26.22 29.90 26.00 23.01 None...... F 25.87 28.27 25.07 24.53 24.01 TABLE No. IV. Yield of Straw per Acre in Cwt. and Decimal of the Same. The soil on which this experiment was tried, was very uniform in appearance, with a very slight slope to the south. If there was any difference in fertility, the soil grew gradually more fertile in traversing from series A to F, as the latter series was situated nearest the street. To all appearance, the results are not very uniform in series A where salt was used, the salt being an apparent detriment for this season, which was very moist during the winter and spring months. (See report of meteorology accompanying this report). With bone meal on series B, there is a gain which is almost regular on the fertilized plats. With the use of guano, it is more especially marked. It is also quite plain in the use of blood and bone fertilizer. In the use of gypsum, or land plaster, the same anomaly occurs as in the use of salt, with the exception of 1 plat (No. 6). The plats in series F did not vary much in yield of wheat or straw, and were nearly up to the yield of many of the fertilized plats. E and F series must not be compared with the preceding series, as they were cut one day later, and, hence, lacked the sun of one day to cure them as well. In the following table I have given the average results on each series of plats, fertilized and unfertilized plats averaged separately: The general average of results is as follows: Salt produced a loss equal to........... Bone Meal produced a gain equal to.... Guano produced a gain equal to........ Blood and Bone produced a gain equal to........ Gypsum produced a gain equal to......... ..2.72 bushels per acre .1.87 bushels per acre .2.83 bushels per acre The yield of straw averaged as above is as follows: |