Bulletin Volume 141-165 by Massachusetts Station
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Author: Massachusetts Station
Page Count: 238 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781130650891
File size: 30 Mb
File Name: Bulletin.Volume.141-165.pdf
Download Link: Bulletin Volume 141-165
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...the quantities added from time to time to the small cylinders. These cylinders were kept covered with galvanized iron caps, so that evaporation and rainfall would affect only the surface of the bogs. Water was added on seven different dates in the summer of 1912, beginning with July 3 and ending on August 16. In 1913 there were eleven different dates, beginning with June 19 and ending on August 28. The total amount added in 1912 was 13.75 gallons per bog, equivalent to a depth of 7 inches over the surface, while in the yet drier season of 1913, 23.75 gallons were required per bog, or a depth of 12 inches. During 1912 it was noticeable that some bogs evaporated much more rapidly than others; but the actual differences were not determined. In the fall, before putting on the sheet-iron rims, it was necessary to cut off the vines which extended over the wall of the tile, and also to cut out some of the surplus growth within the bog area. These prunings were dried and weighed, and were found to vary much. There also appeared to be some relationship between the weight of prunings and the rate of water movement in the bogs, which was to be expected, since transpiration should increase with the development of the vines. Therefore in 1913 a careful record was kept of the amounts of water removed from individual bogs as drainage water in the spring and the quantities of irrigation water added during the summer. The results, together with the weight of vines removed the previous fall, are given in Table 3, as follows: --Table 3.--Relation between Drainage, Irrigation and Vine Growth. Excluding 1A, IB and HA, the averages for 27 bogs are: drainage, 25.6 quarts; irrigation, 93.7 quarts; vines, 208.8 grams. The bogs are arranged so that the unfertilized ones, 6, 10, 11 an..
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