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File:Proceedings of the American Society of Agronomy (1911) (14771476355).jpg

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Identifier: proceedingsofame3191amer (find matches)
Title: Proceedings of the American Society of Agronomy
Year: 1909 (1900s)
Authors: American Society of Agronomy
Subjects: American Society of Agronomy Agronomy
Publisher: Washington, D.C. : The Society
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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ys from Planting toHeading for the Different Moisture Contents. Days from Planting to Heading. 17.6 Percent W. 29.0 Percent W. 42.0 Percent W. Average. 128.0 123.0 128.0 126.3 320 p* 123.0 122.0 126.0 123.6 80 K 121.0 124.0 124.0 123.0 160 N II7.5 121.5 120.5 119.6 320 P, 160 N 119.0 120.5 125.0 121.5 320 P, 80 K 122.0 123.0 124.0 123.0 160 N, 80 K II6.5 118.5 122.0 119.0 320 P, 80 K, 160 N 122.5 II7-5 121.5 120.5 640 P, 80 K, 160 N 121.0 118.5 123.0 120.8 640 P, 80 K, 320 N 116.0 II9-5 123.0 II9-5 320 P, 80 K, 320 N II4-5 120.0 II9-5 118.0 320 P, 80 K, 640 N 115.0 III.O 112.0 112.6 10 tons manure 124-5 119.0 125.0 122.8 20 tons manure 128.0 118.0 126.0 124.0 120.6 119.7 122.8 *P = acid phosphate; K = muriate potash; N = nitrate of soda. 202 PROCEEDINGS OF THE AMERICAN SOCIETY OF AGRONOMY. The length of time required for the plants to reach the stage ofheading has been shortened 0.9 of a day following an increase in soilmoisture from 17.6 to 29.0 percent, while an increase in moisture
Text Appearing After Image:
Fig. 17.—Number of days from planting to heading, under the different con-ditions of soil moisture and fertilization (oats). from 29.0 percent to 42.8 percent has increased this period practicallytwo days over that of 17.6 percent moisture and three days over that MORGAN : AVAILABILITY OF PLANT NUTRIENTS. 203 of 29.0 percent moisture. The moisture content of the soil appar-ently has influenced the length of this stage of growth some, but notnearly so much as have the fertilizers. We find that the greatestaverage variation in the length of time required for the plants to reachthe heading stage following the changes in the moisture content of thesoil, is approximately three days, while the fertilizers have produceda change in this period of approximately fourteen days, varying froman average of 112.6 where the maximum amounts of nitrogen wereadded to an average of 126.3 days where no treatment was given. Itis quite evident that all of the fertilizing materials have had a tendencyto sh

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Author American Society of Agronomy
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Volume
InfoField
1911
Flickr tags
InfoField
  • bookid:proceedingsofame3191amer
  • bookyear:1909
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:American_Society_of_Agronomy
  • booksubject:American_Society_of_Agronomy
  • booksubject:Agronomy
  • bookpublisher:Washington__D_C____The_Society
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:209
  • bookcollection:biodiversity
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
28 July 2014
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