In the article the results of studying the efficiency of different methods and periods of growth regulator phytovital application by buckwheat cultivation are presented. It is determined that the highest buckwheat yield for grain is obtained by growth regulator phytovital application for this crop seeds incrustation (1,2 l/t) with the subsequent crops treatment at budding stage (0,6 l/ha). For maximum buckwheat grain yield formation it is necessary to refuse from the application on its previous crops the persistant sulfonylurea-based herbicides.

   In the article the results of researches on studying the influence of growth regulator phytovital on winter triticale yield are presented. It is determined that phytovital application is a perspective element of this crop cultivation technology. To get the highest effect from phytovital application it is necessary to take into consideration the level of fungicides application in winter triticale crops.

   Results from the analysis of technological, physical and chemical parameters of winter triticale and soft wheat grain and flour for 2013–2014 are presented in the paper. Triticale samples characterized by high yield, were behind winter and spring wheat in a range of milling and baking characteristics, such as grainunit, gluten content, amylogram height, etc. Tightness and stability of interrelations between the studied quantitative characters were determined depending on year and crops.

   Based on the analysis of the experimental data shows the results of evaluation of the impact of ways of the basic processing of gray forest soil and weather conditions of cultivation as the main factors influencing the formation of productivity of spring barley in a part of the grain crop rotation. It was found that the highest level of accumulation of moisture in autumn and winter in the long plowing at 10–30 cm, where it was performed for barley to a depth of 10–12 cm. The coefficient of water consumption varied from 660–745, was the lowest in the system of differentiated basic tillage the soil in which the wheat and for barley disking 10–12 cm plowing under soybean in the 22–24 cm and chisel tillage for corn to 43–45 cm.

   The materials presented three-year study on the moisture content of pea, winter wheat and sugar beet for the various activities of the basic soil tillage. Lack of moisture during the growing season often leads to sharp fluctuations in yield from year to year, that is why all farming practices, including tillage, first of all should be directed to the accumulation, preservation and rational use of water by plants. The replacement of main soil tillage by cultivation and zerotillage in five field crop rotation does not worsen moisture supply conditions of pea, winter wheat and sugar beet plants during the period of these crops vegetation.

   With regard to the Lake District almost no possibility of obtaining corn. This is particularly true of sloping lands, which predominate in the region. All this determined the subject of our research. It takes into account the fact that the cultivation of row crops on steep slopes with more than 5 ° can enhance water erosion. Therefore, studies were selected areas with lower slope of the surface, typical for this region. Based on studies in Senno district, Vitebsk region revealed the effect of weather conditions on the yield of maize harvested for green mass and grain.

   The article describes the differentiation of the collection of the genus Calendula L. Experimental station of medicinal plants with the help of cluster analysis on signs and samples. The most essential signs of the 3 clusters and identify correlations between them. Distributed collection samples of marigold for 6 clusters of which are marked 7 samples by the complex of economically valuable traits.

   The results of researches on studying the biological efficiency of a new preparation Ampligo, MS (lyamda-cygalothrin,50 g/l + chlorantraniliprol,100 g/l against wintering moth (Operophthera brumata L.), rose tortrix (Archips rosana L.) and fruit tree leafroller (Argyroploce variegana Hb.), codling moth (Laspeyresia pomonella L.), green apple aphid (Aphis pomi Deg.) and apple-plantain (Dysaphis plantaginea Pass.) aphid are stated. It is determined that on the 14-th day after treatment leaf-biting lepidopterous insects number decreased for 80%-86%, fruit damage by codling moth by harvest period – for 98,5 %-100 %.

   According to the results of the research carried out in 2007–2015, there was defined the extension and development of the pink snow mold of winter triticale under conditions of Polissia of Ukraine. The results show that the crops were affected in seven cases out of ten. Maximal development of the disease reached 70 % with the average rate 38 % that was registered in spring of 2013, when the snow cover period lasted for 132 days. The research shows the peculiar features of symptoms of the disease on triticale leaves depending on the weather conditions.

   We have carried out the analysis of current geographical distribution for invasive species of herbivorous invertebrates damage agricultural crops, ornamental and resourse plants. On the base of specifics of spread dynamics over the territory of Belarus they have been divided on 10 groups of invaiders. Caucasian black slug (Krynickillus melanocephalus (Kal.)), western corn rootworm (Diabrоtica virgifera virgifera Le Conte) and lupine aphis (Macrosiphum albifrons Essig) are the most dangerous invasive pests of agricultural crops and vegetables.

   The protective proteins genes expressive levels are determined in potato leaves at bacterial infection and glyphosate treatment by real time PCR method. It is shown that transgenic plants treatment by glyphosate induces the expression in protective proteins genes leaves. At glyphosate treated plants contamination by phytopathogenic bacteria the protective answer genes induction levels are increased approximately two times. It is supposed that transgenic plants treatment by glyphosate facilitates their resistance increase to pathogens.

   The results of field experiments on the effectiveness of humic natural fertilizer Biovermtehno at a rate of 2,0 l/ha in crops of flax are presents. Application of fertilizer in the phases of "herringbone" and budding improved phytosanitary condition of crops, reducing the spread of anthracnose on 6,5 %, fusarium and septoria on 0,5 %, increased seed yield on 1,0 c/ha, trusts on 2,4, fiber on 1,3 c/ha, including long fiber on 1,1 c/ha.

   The article presents the results of studying the response of Brussels sprouts to mineral and organic fertilizers use, fertilizer impact on plant morphometric parameters, yield and chemical elements content.

   The results of studies on the effect of macro- and micro nutrients on yield and biochemical composition of sweet pepper сv Parnassus are presented. The optimal drugs allowing to decrease nitrates and increase the dry matter content and the amount of sugars in sweet pepper fruits are revealed.

   The article presents a comparative assessment of the effectiveness of anti-aging pruning the root system of raspberries remontant in uneven-aged plantations. A significant positive effect of use after the rejuvenating pruning foliar fertilizers and special Kristalon Kristalon brown on productivity and its main components and found the effectiveness of the afromethod. The positive impact of rejuvenation pruning and micronutrients on yield components in raspberry remontant (number of lateral, lateral average length, the length of the fruiting zone, the number of berries in the lateral, average fruit weight). The total yield was 85,0–95,0 t/ha (based on the previous 5–8 years of operation stands), which allows you to recoup capital investments for years 1,08–1,22 commodity fruiting.

   The article presents the results of a 3-year study (2010–2012) to study the concentration, timing and frequency of foliar application Rastvorina at fertile apple orchard intensive type. The highest yield increase, the level of profitability were obtained at six times foliar application Rastvorina 1 % concentration of the working solution.