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vol. 8, nr. 1 (2006)
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Influence of different soybean cultivation systems on development of microorganisms and phenols content in loess soil
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Jadwiga Furczak, Bernarda Turska
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Department of Agricultural Microbiology, Academy of Agriculture, ul. Leszczyńskiego 7, 20-069 Lublin |
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vol. 8 (2006), nr. 1,
pp. 59-68
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abstract:
Loess soil (Ap horizon) under 4 soybean monocultures (soybean, soybean + ploughed soybean straw, soybean + ploughed white mustard, soybean + ploughed rye) as well as 2 rotation cultivations with 25 and 50% share of soybean (potato – spring wheat – soybean – winter wheat; soybean – spring wheat – soybean – winter wheat) were the subject of annual microbial and chemical tests. It was found that analysed microbial (total number of bacteria and fungi, Myskow`s fertility index, number of cellulolytic bacteria and fungi, number of proteolytic bacteria and fungi) and chemical parameters (phenolic compounds) usually reached their highest values before crop harvest. Ways of soybean cultivation applied did not significantly differentiate the number of tested microorganism groups, Myskow`s fertility index, and phenolic compounds content in the soil. Recorded differences were most often low, although statistically significant in some cases. It can be concluded that 8-year soybean cultivation in monoculture did not invoke changes of such intensity that could be a threat for proper functioning of the soil environment in tested microbial and chemical indices.
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keywords:
loess soil, soybean monocultures, rotation cultivations with soybean, microbial and chemical properties of soil
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original in:
Polish
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