Mineral nitrogen dynamic in soil of different fertility as affected by agronomic practices
2010
Bogdanović, D., Faculty of Agriculture, Novi Sad (Serbia) | Milošev, D., Faculty of Agriculture, Novi Sad (Serbia) | Šeremešić, S., Faculty of Agriculture, Novi Sad (Serbia) | Jug, I., Faculty of Agriculture, Osijek (Croatia) | Đalović, I., Institute of Field and Vegetable Crops, Novi Sad (Serbia)
The variability and accessibility of NO3-N in the soil derives from the complex interaction of mineralization and ecological conditions. The results showed that in unfertilized two-year rotation conditions for mineralization had the most dominant effects on distribution and dynamics of NO3-N. However, in the fertilized rotation NO3-N dynamic and distribution was a result of mineral N application, plant assimilation and mineralization. In our agro-ecological conditions year to year NO3-N variations were extensive. However, without the addition of nitrogen potential NO3-N released from the mineralization is not sufficient for achievement of high yields. Moreover, fertilization must be based on Soil Fertility Control System.
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