Publication Date
1989
Description
The major quantity of the annual grassland vegetation comes from the first cut in Hungary because of the continental climate of the country. Next to the energy content of grasses it is important to have informations about the amount of some possible toxic components such as nitrate. The critical NO3- value is considered to be 0.25-0.31 % in DM (Andreev, 1981), NO3 content higher than 0.6 % in DM is toxic (Kemp et al., 1977). Ebert et al. (1977) showed that 120 kg/ha N given for the 1st cut did not raise NO3 content higher than the critical value. K fertilizer-applied with N lowers the NO3 content. The objective of our study was to determine how N and K fertilization influences the No3- content of grasses in the first cut.
Citation
Szodfridt, A and Varga, J, "The Effect of N and K Fertilizers on the NO3 Content of Different Grass Species and Mixtures" (2025). IGC Proceedings (1989-2023). 6.
https://uknowledge.uky.edu/igc/1989/session7/6
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
The Effect of N and K Fertilizers on the NO3 Content of Different Grass Species and Mixtures
The major quantity of the annual grassland vegetation comes from the first cut in Hungary because of the continental climate of the country. Next to the energy content of grasses it is important to have informations about the amount of some possible toxic components such as nitrate. The critical NO3- value is considered to be 0.25-0.31 % in DM (Andreev, 1981), NO3 content higher than 0.6 % in DM is toxic (Kemp et al., 1977). Ebert et al. (1977) showed that 120 kg/ha N given for the 1st cut did not raise NO3 content higher than the critical value. K fertilizer-applied with N lowers the NO3 content. The objective of our study was to determine how N and K fertilization influences the No3- content of grasses in the first cut.
