An investigation on determining the most suitable nitrogen and zinc fertilizer doses for the main crops of Sorghum-Sudangrass Hybrids Sorghum bicolor X Sorghum sudanense in the Çukurova Region Turkey

Abstract

This study was carried out in order to determine the most suitable nitrogen and zinc fertilizer doses for the main crops of sorghum-sudangrass hybrids in the Çukurova Region during 2001-2002 at Çukurova Agricultural Research Institution. Grazer cultivar of Sorghum-Sudangrass hybrids and as pure fertilizer doses 0, 7, 14, 18, 24 kg/da nitrogen and 0, 0.5, 1.0 kg/da zinc were used in the study. As a result of this research, while the highest total fresh yield was obtained with 5722.97 kg/da value from N18-Zn0 treatment, the lowest total fresh yield was obtained with 4415.00 kg/da value from N0-Zn0 treatment. While the highest total dry matter yield was obtained with 1602.87 kg/da value from N14-Zn1 treatment, the lowest total dry matter yield was obtained with 1185.88 kg/da value from N0-Zn0.5 treatment. In general, the effect of nitrogen and zinc treatments on the fresh and dry matter yield was found to be significant. While the highest crude protein yield was obtained with 5498.085 kd/da value from N18-Zn0 treatment, the lowest crude protein yield was obtained with 4030.665 kg/da value from N0-Zn0.5 treatment. In general, N and Zn application increased crude protein yield. While the ADF rate was obtained with % 47.560 values from N7-Zn1 treatment, the lowest ADF rate was obtained with % 44.525 values from N0-Zn0.5 treatment. The rate of increasing Zinc ration caused maturation, low protein and high ADF contents

Keywords

• Sorghum-Sudangrass Hybrids, Nitrogen, Zinc, Yield

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