Browsing by Author "Grava, John"
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Item Computer programmed soil test recommendations for lawns, turfs, and gardens in Minnesota(University of Minnesota. Agricultural Extension Service, 1981) Grava, John; Fenster, William E.; Jokela, William E.Item Fertility Levels of Minnesota Lawn and Garden Soils, 1972-76(Minnesota Agricultural Experiment Station, 1979) Grava, John; Fenster, William E.Chemical soil tests measure the relative nutrient status of the soil and assist in making recommendations for efficient and safe use of fertilizer and lime. Soil testing procedures have now progressed to the stage where the measurement of nutrient deficiencies as well as excesses is possible. The University of Minnesota Soil Testing Laboratory has given assistance to homeowners and turf managers since its establishment in 1950. Lime and fertilizer recommendations were originally prepared by soil scientists at the laboratory, and then from 1955 to 1972, by county extension agents. A computerized recommendation program for garden and lawn samples was introduced in 1972. The computer program was designed to give recommendations, based on the individual customer's situation, faster and more efficiently than previously possible. Soil test results have been summarized periodically since the establishment of the University of Minnesota Soil Testing Laboratory. The summaries published in 1964 reflected the native fertility of Minnesota soils (4). Occasionally, soil test results of samples received from Hennepin and Ramsey counties have been summarized to illustrate soil fertility problems encountered in the Twin City metropolitan area (Grava, J., 1958 and 1969, unpublished data). Soil test summaries are useful to the fertilizer and lime industries by pointing out areas of greatest need for their products. Extension personnel, teachers, and students find summary data helpful as teaching aids. The data reported here summarize 19,224 test results for garden and lawn soil samples received between April1, 1972, and December 31, 1976, by the University of Minnesota Soil Testing Laboratory. This report presents, in a general way, the fertility status of garden and lawn soils of Minnesota.Item Fertility Status of Minnesota Soils As Shown By Soil Tests(Minnesota Agricultural Experiment Station, 1979) Grava, John; Fenster, William E.; Schoper, Robert P.Item Guide to computer programmed soil test recommendations in Minnesota (revised 1978)(University of Minnesota. Agricultural Extension Service, 1978) Fenster, William E.; Overdahl, Curtis J.; Simkins, Charles A.; Grava, John; Schoper, Robert P.Item Guide to computer programmed soil test recommendations in Minnesota (revised 1981)(University of Minnesota. Agricultural Extension Service, 1981) Jokela, William E.; Fenster, William E.; Overdahl, Curtis J.; Simkins, Charles A.; Grava, JohnItem Guide to computer programmed soil test recommendations in Minnesota 1969-1970(University of Minnesota. Agricultural Extension Service, 1969-06) Fenster, William E.; Overdahl, Curtis J.; Grava, JohnItem Guide to computer programmed soil test recommendations in Minnesota 1971(University of Minnesota. Agricultural Extension Service, 1971) Fenster, William E.; Overdahl, Curtis J.; Simkins, Charles A.; Grava, JohnItem Guide to computer programmed soil test recommendations in Minnesota 1976(University of Minnesota. Agricultural Extension Service, 1976-01) Fenster, William E.; Overdahl, Curtis J.; Simkins, Charles A.; Grava, JohnItem Interpretation of Minnesota soil tests for fertilizer use(University of Minnesota. Agricultural Extension Service, 1961-09) Hanson, L.D.; Overdahl, C.J.; Halverson, M.V.; Grava, JohnItem Interpretation of Minnesota soil tests for fertilizer use(University of Minnesota. Agricultural Extension Service, 1964-02) Hanson, L.D.; Overdahl, C.J.; Halverson, M.V.; Grava, JohnItem Liming Minnesota Soils(University of Minnesota. Agricultural Extension Service, 1970) Grava, John; Overdahl, C. J.; Fenster, W. E.Item Liming Minnesota Soils(1956-10) Grava, John; Halverson, MerleItem Liming Minnesota Soils(University of Minnesota. Agricultural Extension Service, 1960) Grava, John; Halverson, MerleItem Liming Minnesota Soils (Revised 1963)(University of Minnesota. Agricultural Extension Service, 1963-06) Grava, John; Halverson, MerleItem Liming Minnesota soils (Revised 1978)(University of Minnesota. Agricultural Extension Service, 1978) Grava, John; Overdahl, C. J.; Fenster, W. E.This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.Item Liming Minnesota Soils (Revised 1978)(University of Minnesota. Agricultural Extension Service, 1978) Grava, John; Overdahl, C. J.; Fenster, W. E.Item Soil Fertility Investigations of Grass Seed Production in Northwestern Minnesota(Minnesota Agricultural Experiment Station, 1970-03) Grava, John; Randall, G. W.; Larsen, D. M.; Farnham, R. S.Item Soil Fertility Investigations with Corn on the Fayette Silt Loam and Associated Soils of Southeastern Minnesota(Minnesota Agricultural Experiment Station, 1965-06) Grava, John; Hanson, Lowell D.Item Soils, Soil Management and Fertilizer Monographs (Revised 1978)(University of Minnesota, Agricultural Extension Service, 1978) Overdahl, C.J.; University of Minnesota, Agricultural Extension Service; Fenster, W.E.; Simkins, C.A.; Meredith, H.L.; Swan, J.B.; True, J.A.; Swan, James B.; MacGregor, John M.; Munter, Robert C.; Grava, John; Grava, J.; Ham, G.E.; Hanson, Lowell D.; Overdahl, Curtis; Simkins, Charles; Fenster, William