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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The Neubauer method as a means of determining the fertilizer requirements in certain Virginia soils

Earley, Ernest Benton January 1929 (has links)
Rye seedlings grown on differently fertilized plats at Chatham, Virginia, and at Fishersville, Virginia, for the year 1928, and tested by the Neubauer seedling method for phosphorus gave no clue to the amount and availability of the phosphatic fertilizer added. Therefore, the Neubauer seedling method as devised by Neubauer did not prove to be of value in determining the phosphorus availability of Virginia soils under the conditions prevailing in 1928. / M.S.
2

The Neubauer method as a means of determining the phosphorus requirements of certain Virginia soils

Grizzard, Alton Lee January 1929 (has links)
In general, the yields of alfalfa were increased by varying amounts of various fertility elements on the Norfolk sandy loam soil type at Williamsburg, Virginia. The yields of corn grown on the Hagerstown silt loam soil type at Blacksburg, Virginia, correspond closely to the fertilizer treatments and their availability. The milligrams of phosphorus absorbed by rye seedlings show no relation to the amounts of phosphorus added to the soil in fertilizers. In fact, in most trials the amount absorbed from treated plats was less than the amount produced from sand checks. It seems that all the phosphorus obtained came from the seed and not from the soil. From the studies reported herein, therefore, it must be concluded that the Neubauer seedling method is not applicable for determining the phosphorus requirements of the soil types used in this investigation. / M.S.

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