. Bulletin of the Department of Agriculture. Agriculture; Agriculture. CROPS ON ALKALI LAND, HUNTLEY PROJECT, MONTANA. RESULTS OF EXPERI- MENTS. FIRST METHOD. OATS BEET5 in WHEAT OATS WHEAT BEETS [ALFALFA II W 0AT5 IB ~T~ -EJ Re W H -a- Second method,—The second method included plowing under rye as green manure in 1911, followed during the latter part of 1911 and all of the season of 1912 by frequent irrigating and cultivating. In September, 1911, the ground was leveled and bordered for irrigating in plats containing about one-sixth of an acre. Each irrigation was fol- lowed as
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. CROPS ON ALKALI LAND, HUNTLEY PROJECT, MONTANA. RESULTS OF EXPERI- MENTS. FIRST METHOD. OATS BEET5 in WHEAT OATS WHEAT BEETS [ALFALFA II W 0AT5 IB ~T~ -EJ Re W H -a- Second method,—The second method included plowing under rye as green manure in 1911, followed during the latter part of 1911 and all of the season of 1912 by frequent irrigating and cultivating. In September, 1911, the ground was leveled and bordered for irrigating in plats containing about one-sixth of an acre. Each irrigation was fol- lowed as soon as possible by cultivation. This treatment was applied on plats 15 and 16 on field M-I. Third viethod.—The third method was the same as the second, except that barnyard manure was applied at the rate of 20 loads per acre in 1911 before plowing under the rye, and again in 1912. In 1912 the manure was plowed under in June and the land was immediately leveled. Alternate irrigation and cultivation was practiced during the remainder of the sea- son. This method was applied on plats 17, 18, and 19 on field M-I. All of the plats in- cluded in the three methods were crop- ped in 1913. The treatments applied in 1913 were simply the ordinary opera- tions in the prepara- tion of the seed bed and the subsequent irrigation and culti- vation necessary in growing the different HUNTLEY EXPERIMENT FARM WORDEN TRACT—FIELD fl Fig. 3.—Diagram of the Worden tract, showing fields M-I and M-II, where the experiments discussed in this bulletin were carried on and indicating the location of the different crops in 1913. Since the soil is very deficient in vegetable matter, it was thought that the addition of humus by plowing under green-manure crops would be one of the best means of opening up the surface soil. This appears to have been the case. As mentioned previously, all of the land on this tract that was broken up in 1910 was planted to winter rye and the crop plowed under in J
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