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Publication Date

1977

Description

Experiments carried out during the years 1971 to 1973 have shown that a uniform system of the nutrition of grassland associations cannot be introduced into all production areas and all types of forage crops represented in Czechoslo­vakia. In relation to the complexity of the studied problems and to the diversity of soil and climatic conditions in the production areas, it is necessary to propose the adequate systems of nutrition after several series of experiments or to base them on empirical experience drawn from the studied production area. The testing of different times of application of identical nutrient rates (150 kg N + 33 kg P + 62.25 kg K per hectare) proved that it is fully justified to split the rates of nitrogen nutrition (in form of urea) of grassland asso­ciations in the studied ecological conditions; it was shown that this important fertilizer had been excellently utilized even when applied late in autumn.

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Experiments about the nutrition of grassland ecosystems with respect to different times of NPK application

Experiments carried out during the years 1971 to 1973 have shown that a uniform system of the nutrition of grassland associations cannot be introduced into all production areas and all types of forage crops represented in Czechoslo­vakia. In relation to the complexity of the studied problems and to the diversity of soil and climatic conditions in the production areas, it is necessary to propose the adequate systems of nutrition after several series of experiments or to base them on empirical experience drawn from the studied production area. The testing of different times of application of identical nutrient rates (150 kg N + 33 kg P + 62.25 kg K per hectare) proved that it is fully justified to split the rates of nitrogen nutrition (in form of urea) of grassland asso­ciations in the studied ecological conditions; it was shown that this important fertilizer had been excellently utilized even when applied late in autumn.