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Publication Date
1977
Description
Chemical Products Industry in Prahovo in cooperation with agricultural stations in eastern and south-eastern Serbia in the period 1968 to 1974 organized demonstration experiments in 33 locations with the fertilization of natural grassland. The experiments had three variants: I = nonfertilized; II = fertilized with 300 kg/ha of NPK fertilizer 14 : 14 : 14 ; and III = fertilized with 600 kg/ha of the before-mentioned fertilizer. The following results were obtained: Fertilization with 300 kg/ha of NPK fertilizer 14: 14: 14 (active matter 42 kg N, 42 kg P, 42 kg K) increased the yields (compared to the non-fertilized variant) on average for all years and all locations by 2.76 t hay/ha or 110%. Fertilization with 600 kg/ha of NPK fertilizer 14: 14: 14 (active matter 84 kg N, 84 kg P, 84 kg K) increased the yields (compared to the non-fertilized variant) on average for all years and all locations by 4.82 t hay/ha or 193%. Doubled dosage of NPK 14:14:14 offers a larger possibility of the intensification of hay yield than the dosage of 300 kg/ha and thus it is much more suitable for the social and individual agricultural producers' interests.
Citation
Kerschberger, Manfred and Richter, Dietmar, "Determination of the potassium fertilizer requirements of meadow soils in the GD R" (1977). IGC Proceedings (1977-2023). 43.
(URL: https://uknowledge.uky.edu/igc/1977/sess7/43)
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Determination of the potassium fertilizer requirements of meadow soils in the GD R
Chemical Products Industry in Prahovo in cooperation with agricultural stations in eastern and south-eastern Serbia in the period 1968 to 1974 organized demonstration experiments in 33 locations with the fertilization of natural grassland. The experiments had three variants: I = nonfertilized; II = fertilized with 300 kg/ha of NPK fertilizer 14 : 14 : 14 ; and III = fertilized with 600 kg/ha of the before-mentioned fertilizer. The following results were obtained: Fertilization with 300 kg/ha of NPK fertilizer 14: 14: 14 (active matter 42 kg N, 42 kg P, 42 kg K) increased the yields (compared to the non-fertilized variant) on average for all years and all locations by 2.76 t hay/ha or 110%. Fertilization with 600 kg/ha of NPK fertilizer 14: 14: 14 (active matter 84 kg N, 84 kg P, 84 kg K) increased the yields (compared to the non-fertilized variant) on average for all years and all locations by 4.82 t hay/ha or 193%. Doubled dosage of NPK 14:14:14 offers a larger possibility of the intensification of hay yield than the dosage of 300 kg/ha and thus it is much more suitable for the social and individual agricultural producers' interests.
