The effect of nitrogen (urea) and zinc applied in different doses from the soil and leaves on the development, dry matter amount and mineral content of wheat and corn plants

This study was carried out to determine the effects of nitrogen and zinc applied in different doses (0.0, 5.0, 10.0 and 15.0 kg N/da and 0.0 and 2.5 ppm Zn) to the soil sample taken from Erzurum Atatürk University Faculty of Agriculture Farm land on the dry matter content and mineral content of wheat and maize. It was carried out under greenhouse conditions in 96 pots (2 plants, 2 application methods, 4 nitrogen doses, 2 zinc doses and 3 replications). As a base fertilizer, it was applied to all pots before planting at doses of 10.0 kg P2O5/da (TSP: 44.0% P2O5) and 10.0 kg K2O/da (K2SO4: 50.0% K2O). Considering the applications, Urea and Zinc fertilizers were applied to the soil before planting in soil application, and from foliar application 5 times in every 2 weeks, starting one week after germination in foliar application. 90 days after sowing, the plants were harvested, dried, their dry weights were determined, the necessary analyzes were made and the plant mineral content was determined. According to the results obtained, nitrogen application from the soil was more effective, and the highest dry matter amount and plant height in both plants were obtained from the soil application of 15.0 kgN/da urea and 2.5 ppm Zn. Depending on the applications, the dry matter increase is 77.5% in wheat and 80.4% in corn in application from soil. In foliar application, the dry matter increase is 11.4% in wheat and 30.6% in corn. A similar change has also emerged in plant height, the plants applied fertilizer from the soil are taller, with an average of 62.5 cm in wheat and 75.5 cm in maize. These values are on average 55.0 cm and 64.0 cm in plants applied foliar fertilizer. The mineral content of the plants applied foliar fertilizer is higher.

Keywords:

Dry matter, urea zinc, dose,

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