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Low soil phosphorus and potassium limit soybean grain yield in Ohio
Author(s) -
Brooker Aaron P.,
Lindsey Laura E.,
Thomison Peter R.,
Culman Steven W.,
Subburayalu Sakthi K.
Publication year - 2017
Publication title -
crops and soils
Language(s) - English
Resource type - Journals
eISSN - 2325-3606
pISSN - 0162-5098
DOI - 10.2134/cs2017.50.0502
Subject(s) - soil fertility , agronomy , phosphorus , environmental science , yield (engineering) , potassium , grain yield , soil test , test (biology) , soil water , mathematics , zoology , soil science , biology , chemistry , ecology , physics , organic chemistry , thermodynamics
A soil survey was conducted in Ohio with the following objectives: (i) to assess the status of soil fertility; (ii) to examine soybean grain yield in areas with fertility levels in the build‐up range, where soil test levels were less than the critical level (CL); the maintenance range, where soil test levels were between the CL and maintenance limit (ML); and the drawdown range, where soil test levels were greater than the ML; and (iii) to determine if the soil test and yield data collected support the state‐established fertility recommendations. Earn 0.5 CEUs in Soil & Water Management by reading this article and taking the quiz at www.certifiedcropadviser.org/education/classroom/classes/496 .