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- W2498686542 abstract "The objective of this study was to investigate influence crop rotation and fertilization on chemical soil properties of chernozem and nitrogen balance in soil. The present study was performed on a long-term crop rotation trial that is being carried out at the Rimski Sancevi Experiment Field of the Institute of Field and Vegetable Crops in Novi Sad. The study treatments were as follows: fertilized two-field crop rotation (maize-wheat) established 1969/70. and unfertilized two-field crop rotation (maize-wheat) established 1946/47. For determination of changes occurred in the soil and evaluation of production capabilities of chernozem, soil chemical properties were compared with the soil properties observed 20 years before (1987/88). Nitrogen balance was calculated on the basis of N output by grain yield and harvest residue, and N input by N-fertilization and by incorporated harvest remains. Obtained result of N-balance in soil for fertilized two-field crop rotation confirmed that selected production technology for wheat and corn was sufficient for high yield, and agronomic productivity was maintained over the years. At the unfertilized two-field crop rotation we calculated negative N-balance is soil. Since fertilizers were omitted from 1946/47 (only small amount of harvest residue were incorporated in soil) grain yield of corn and wheat was low, moreover we anticipate that new state of equilibrium of N and other biotic element was established. Humus content in soil for the period 1947-2008 was reduced for 0.49% and consequently soil at unfertilized plot had insufficient potential for viable production and high yield." @default.
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- W2498686542 date "2008-01-01" @default.
- W2498686542 modified "2023-09-24" @default.
- W2498686542 title "Soil chemical properties of chernozem and nitrogen balance at two-field crop rotation" @default.
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