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1. A New Hydroponic System for Testing Mineral Nutrient Deficiencies and It's Application to SoybeansCorrelating plant tissue nutrient concentrations with visual symptoms is valuable in combating mineral nutrient deficiencies and toxicities. Due to changing climates and decreasing water supplies throughout the world, agricultural lands need to improve nutrient and water management in crops, including soybeans (Glycine max L.).Because nutrient concentrations can be easily controlled, hydroponics effectively demonstrate isolated specific nutrient related symptoms. However, many hydroponic... A.M. Lambert, S.M. Anderson, D.L. Cole, A. Haderlie, C.J. Seely, B.G. Hopkins |
2. Evaluation of Starter Nitrogen Fertilizer Rates for Grain Sorghum Production in the Southern Great PlainsNitrogen (N) is the most essential nutrient for plant growth and is often the most limiting in crop production. Timely applications of N throughout the growing season are critical to maximizing crop yield. Applying N at planting has proven to be an effective practice, giving plants accessible N early on to increase vegetative growth. Although this is commonly practiced in corn production throughout the Oklahoma and Kansas area, little research has been conducted concerning proper N starter rates... M. Thomas, B. Arnall |