Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Potassium Placement and Tillage System Effects on Corn Response following Long-Term No Till

Tony J. Vyna and Ken J. Janovicekb

a Dep. of Agron., Purdue Univ., West Lafayette, IN 47907-1150
b Dep. of Plant Agric., Univ. of Guelph, Guelph, ON, Canada N1G 2W1



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Fig. 1. Relationship between soil-test K in surface 15 cm and NT corn yield response to applying 42 kg K ha-1 in a starter band at planting

 


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Fig. 2. Summary of May through September weekly mean and normal air temperature and precipitation during corn production years at Belmont and Kirkton. Dates represent the middle of each week

 





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