INITIAL EVALUATION OF SOME NON-CONVENTIONAL PRODUCTS ON SOYBEAN GROWTH AND YIELDS
Agronomy & Pest Management
Michael Rethwisch
Farm Advisor - Crop Production and Entomology
University of California Cooperative Extension
Blythe
Abstract
INITIAL EVALUATION OF SOME NON-CONVENTIONAL PRODUCTS ON SOYBEAN GROWTH AND YIELDS\r\n\r\nRethwisch, M.D.\r\n\r\nExtension Educator, University of Nebraska-Lincoln, Butler County, David City, NE 68632-1666\r\n\r\n During the past three years, a number of non-conventional products have been evaluated using replicated large strip trials to ascertain their effects on soybean growth, pod set, yields and other related factors. Foliar products have included Primer, BioForgeTM, CoMoTM, Goemar® BM86, Nutriplant® AG, ProActTM, Aminofol® Maximize, and STO 4.33. Seed treatments have included BioForgeTM, Trilex® + Gaucho®, and Nutriplant® SD. Treatments from a single application of foliar products have usually resulted in less than one bushel/acre increase in yield. Seed applied treatments have resulted in a range of yields from no differences up to 2 bushels/acre. Some treatments have significantly increased pods/plant set at certain nodes as well as for whole plant, but yield increases did not always correlate with pod increases thought due to low fertility levels and/or plant compensation over time. Most foliar treatments did increase residual soil nitrate levels when applied to soybeans under stress. A single CoMoTM application significantly increased soil nitrates when sampled post harvest by 4.7 ppm.
Authors: Rethwisch, M. D.
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Rethwisch, M. D. Ext. Educator, University Of Nebraska, Nebraska, 68632