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Nitrate and Nutrient Accumulation in Two Varieties of Bermudagrass (Cynodon dactylon (L.) Pers.) as Influenced by Soil-Applied Fertilizer Nutrients¹

Two varieties of bermudagrass were grown in a green-house to determine differences in nitrate-nitrogen content due to soil texture, nitrogen fertilization, and various mineral nutrient treatments. Nitrate-N content of ‘NK-37’ bermudagrass was twice as high as that of ‘Coastal’ bermudagrass across all treatments. Soil texture influenced nitrate-N levels within each variety more than did rate of N fertilization. Mineral nutrient application did not significantly alter nitrate-N levels in the plant tissues. Dry matter yields were increased by nitrogen fertilization, but not by mineral nutrient application. Zinc was the only mineral nutrient which increased within the plant tissues due to mineral application. All nutrients were as high or higher in NK-37 than in Coastal except for Mn.

Key Words: NK-37 • Coastal • Micronutrients

² Graduate Research Assistant, Professor and Assistant Professor, Soil and Crop Sciences Department, Texas A&M University, College Station 77843.

Received for publication April 1, 1968.