L.M. Zakharova1, D.O. Morozov2
1All-Russian Research Institute of Flax, ul. Lunacharskogo, 35, Torzhok, Tverskaya obl., 172002, Russian Federation
2Agrobiotechnologia company, Kronshtadskiy bulvar, 7, str. 4, Moskva, 125212, Russian Federation
Summary. The results of three years researches on effect of Vitaplan SP biofungicide on growth and development of the flax plants, its yield and quality were presented. Researches were carried out on the sod-podzolic loam soils of Nonchernozem zone of the Russian Federation. The phosphorus content (P2O5) was from 190 mg/kg to 203 mg/kg; the potassium content (K2O) was from 91 mg/kg to 116 mg/kg; рН КСl was from 5.1 to 5.5. Lenok variety of fiber flax and LM-98 variety of oil flax were grown. Predecessor was spring barley. The model variant in experience was tank mixture of herbicides. The control variant was not treated. The experimental variants were similar to the model variant, but tank mixture included Vitaplan biofungicide in a dose of 40 g/ha. Tank mixture of herbicide reduced the weight of the dicotyledonous weeds at 70-100% and the grass weeds at 79-100%. The efficiency of tank mixtures with Vitaplan biofungicide was from 82% to100% and from 80% to100 %, respectively to the type of weeds. The stimulating effects of Vitaplan biofungicide on the flax plants were identified. Its addition to the tank mixture model in scheme using Magnum herbicide increased the height of the fiber flax plants average at 2.7; 5; 5.2 cm in rapid growth stage, budding stage and flowering stage, respectively. Addition Vitaplan biofungicide to the scheme using Sekator Turbo herbicide increased the height of the fiber flax plants at 3.4; 5.5; 6 cm respectively to the growth stages of plants. Making Vitaplan biofungicide reduced spread of anthracnose, stem break and pasmo disease. The biological effectiveness against anthracnose was from 55% to 95%; effectiveness against stem break was almost 100%; effectiveness against pasmo disease was 56% to 88%. Making in common Vitaplan biofungicide and Magnum herbicide allowed to obtain increase of rotted straw yield from 0.26 t/ha to 0.62 t/ha, seeds yield from 0.1 t/ha 0.14 t/ha; making in common Vitaplan biofungicide and Sekator Turbo herbicide increased rotted straw yield and seeds yield at 0.35-0.42 t/ha and 0.14-0.16 t/ha, respectively. Additional treatment of the flax planting by Vitaplan biofungicide and Magnum herbicide in rapid growth period increased rotted straw yield at 0.26-0.95 t/ha and seeds yield at 0.16-0.2 t/ha. Additional treatment by Vitaplan biofungicide and Sekator Turbo herbicide increased rotted straw yield at 0.38- 0.55 t/ha.
Keywords: fiber flax, oil flax, weeds, herbicides, herbicidal stress, biofungicide, yield.
Author Details: L.M. Zakharova, senior research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); D.O. Morozov, director general (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Zakharova L.M., Morozov D.O. Protection of Flax from Weeds Making Vitaplan Biofungicide. Dostizheniya nauki i tekhniki APK. 2016. V. 30. No 7. Pp. 80-83 (in Russ.).