Mineral fertilisation of winter rape (Brassica napus L.) on calcareous chernozem soil. II.
2001
Kadar, I. | Nemeth, T. | Lukacs, D.
The effect of various levels of NPK supplies and their combinations on the element uptake, oil content and fatty acid composition of winter rape (cv. Yet Neuf), and on the NO3-N and SO4-S leaching and salt balance in the 0-300 cm soil layer was examined in the 11th year of a long-term mineral fertilisation experiment set up on calcareous loamy chernozem soil. The ploughed layer of soil at the growing site contained approx. 3% humus, 5% CaCO3 and 20% clay. Soil analyses showed that the soil was moderately well supplied with N, K and Cu and poorly supplied with P and Zn. The experiments involved 4Nx4Px4K=64 treatments in 2 replications, giving a total of 128 plots. The mineral fertiliser was applied in the form of 25% calcium ammonium nitrate, 18% superphosphate and 50% potassium chloride.
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