THE REASONS OF WIDESPREAD SPRING WHEAT ROOT ROT IN WESTERN SIBERIA
Abstract
The article shows the results of many year research on injuriousness of spring wheat root rot in different systems of soil tillage in grain-fallow crop rotations of Western Siberian forest-steppe. The research was carried out from 1986 to2015 inthe immobile field experiment of Siberian Research Institute of Arable Farming and Chemicalization of Agriculture (Novosibirskregion). The authors applied the following systems of soil tillage: reclaiming in the steam 25–27 sm deep and 20–22 sm for grain crops, nonmouldboard cultivation by means of stilts 25–27 sm deep in the steam and 20–22 sm under the crops, minimal tillage on 10–12 sm and no-tillage. The main reasons for spreading of common root rot on the crops are considered to be extreme climate conditions for vegetation and insufficient application of plant protection chemicals. The degree of disease progress varied insignificantly in the variants with reclaiming, nonmouldboard and no-tillage during 19 years of observation. The infection progress index depends on the moisture in vegetation period. The high est injuriousness of common root rot causative agents was observed after drought and high temperatures. The paper outlines accumulation of common root causative agents in the soil in 1.5–2 times when soil tillage was less in comparison with reclaiming.
About the Authors
N. V. Vasilieva
Siberian Research Institute of Arable Farming and Chemicalization of Agriculture
Russian Federation
Candidate of Biology
Russian Federation
Candidate of Biology
V. E. Sineshchekov
Siberian Research Institute of Arable Farming and Chemicalization of Agriculture
Russian Federation
Doctor of Agricultural Sc.
Russian Federation
Doctor of Agricultural Sc.
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Review
For citations:
Vasilieva N.V., Sineshchekov V.E. THE REASONS OF WIDESPREAD SPRING WHEAT ROOT ROT IN WESTERN SIBERIA. Bulletin of NSAU (Novosibirsk State Agrarian University). 2016;(4):13-18. (In Russ.)
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