Distribution of NO3-N within the soil profile in enhancing corn yield
2010
Latković, D., Faculty of Agriculture, Novi Sad (Serbia) | Marinković, B., Faculty of Agriculture, Novi Sad (Serbia) | Crnobarac, J., Faculty of Agriculture, Novi Sad (Serbia) | Bogdanović, D., Faculty of Agriculture, Novi Sad (Serbia) | Bavec, F., Faculty of Agriculture, Maribor (Slovenia) | Jocković, Đ., Institute of Field and Vegetable Crops, Novi Sad (Serbia)
A four-year study about the distribution of NO3-N in depth of land profile and its influence on the yield height of corn line was conducted on the long term stationary filed at the Institute of Field and Vegetable Crops in Novi Sad, Serbia. Six inbred corn lines which belong to different FAO groups were researched depending on the variant nitrogen fertilization (control; 40 kg N/ha; 80 kg N/ha and 120 kg N/ha). Dependence between NO3-N content in profile depth, winter precipitation and corn line yield was established through Person's simple correlation coefficients and by the method of Path coefficients analysis. Winter precipitation influenced significantly the rise of content of NO3-N especially in layers of 30-60 cm (r=0.59**) and 60-90 cm (r=0.41*), and exactly N from these two layers has mostly influenced the yield height.
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