Elementary principles of agriculture Elementary principles of agriculture : a text book for the common schools elementaryprinci02ferg Year: 1913 Cultivated Grains 309 inches or greater than 8 to 10 inches is not often desirable. The advantages that follow early breaking are due to the in- creased amount of moisture stored and the encouragement given to the formation of nitrates in the soil. (^ 128). 445. Early and Late Plowing. Many experiments have been made that show how great the gain is when Fig. 198. Increase blocks of wheat and oats planted from seed grown in head rows. Increase blo
Elementary principles of agriculture Elementary principles of agriculture : a text book for the common schools elementaryprinci02ferg Year: 1913 Cultivated Grains 309 inches or greater than 8 to 10 inches is not often desirable. The advantages that follow early breaking are due to the in- creased amount of moisture stored and the encouragement given to the formation of nitrates in the soil. (^ 128). 445. Early and Late Plowing. Many experiments have been made that show how great the gain is when Fig. 198. Increase blocks of wheat and oats planted from seed grown in head rows. Increase blocks planted in this way afford another opportunity for comparing quality and yield. Courtesy Prof. Frank Spragg, INIichigan Agricultural College. early breaking is compared with late breaking. At the Oklahoma Experiment Station, three plots were plowed on dates indicated in the table in ^ 446. In the early plow- ing, the soil was moist and readily formed a mellow bed that absorbed and largely retained the summer rains. The medium late breaking broke up lumpy and was drier, while the very late breaking was so weedy, and broke up so lumpy that it required about eight times as much labor to get the land in reasonably fair condition for seeding.
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