Role of variety affection by the diseases in substantiation of tactics and economics of grain crop fungicidal treatments in the Republic of Belarus | Роль пораженности сорта болезнями в обосновании тактики и экономики фунгицидных обработок зерновых культур в Республике Беларусь
2012
Buga, S.V. | Zhukovskij, A.G. | Ilyuk, A.G. | Radyna, A.A. | Zhuk, E.I. | Leshkevich, V.G. | Sklimenok, N.A., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute of Plant Protection
In the conditions of the Republic of Belarus there were analysed monitoring data of winter and spring wheat (Triticum aestivum), winter triticale (Triticosecale), spring barley (Hordeum vulgare) varieties affection by the disease agents. There was shown the infection level which affected the variety during a vegetative season. For leaf apparatus and ear protection depending on dynamics of diseases development, the varieties were relatively divided into groups demanding one and two fungicide treatments. Based on it, the calculation was made and it was determined that only by means of reduction of sowing areas of strongly infected varieties (for example, Cobra for 2,5% and Kapyljanka for 4,8%) or variety changing it was possible to essentially reduce the purchase and fungicide application volumes (for 584,5-1802,9 ths. USD.), thus, having raised, the crop profitability. Research results showed that determination of terms of manifestations of dominant diseases in period of plant vegetation, dynamics of their development, and the occurrence terms of practicality threshold of fungicide application made it possible to determine the tactics of realization of fungicidal treatments in different seedlings.
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