Scientific Journal of KubSAU

In the article we have presented the results of the researches on influence of the ways of main soil tillage and sowing on the water regime agrophyto-cenosis and productivity of maize hybrids of differ-ent maturity classes

In article results of influence of various types of hybrids on efficiency of a sugar beet depending on cleaning terms are resulted, and also their economic estimation is given

To increase productivity and quality, as well as to reduce the cost of production of winter wheat in the Central irrigated zone of the Rostov region is of great importance to find the most effective methods of agricultural culture, in particular, the protection of crops from weeds. The work determines most effective herbicides for pre-germination use against annual dicotyledonous, including resistant to 2,4-D and MCPA, and some perennial root-spray weeds in the Central irrigated zone of the Rostov region. The efficiency of different terms of application of the herbicide called Ballerina on winter wheat crops in the Central irrigated zone of the Rostov region was studied. The greatest biological effectiveness of herbicides is provided by spraying winter wheat crops in the tillering phase with Ballerina herbicide with the norm of 0.3 l/ ha. We have discovered low biological effectiveness of Gerbitox herbicide against Matricaria inodora (L.), Fumaria officinalis (L.), Artemisia vulgaris (L.) and Cirsium arvense (L.). Best experience quality indicators of winter wheat grain were observed in the variant with the lowest contamination of crops when spraying in the phase of tillering a Ballerina herbicide 0.3 l/ha. The content of trash was 7.1%, nature 790 g/l, gluten content of 26.4 %, group 2 quality, and the commodity class – 3. Good quality indicators were also observed in the variant with Ballerina herbicide treatment of 0.5 l/ha in the tube exit phase. The highest level of profitability was obtained when spraying winter wheat crops in the tillering phase with Ballerina herbicide 0.3 l / ha-116%, and the lowest on the control was without treatment with herbicides - 74%

In the article the results of the influence of various types of hybrids and their variants of sterilization on efficiency of sugar beets are shown, and also their economic estimation is given

Currently, there is no effective chemical protection of sunflower crops against dicotyledonous weeds during the growing season of the crop, except for systems that provide for the use of herbicides called Evro-Laiting, Zonator or Express. The disadvantage of these systems is the limited composition of cultivated sunflower hybrids and high costs. The article presents a research on the development of an effective system of chemical protection of sunflower crops against dicotyledonous and monocotyledonous weeds during the growing season of the crop. The greatest effect in the suppression of weeds in sunflower crops was observed by application of the herbicides Goal 2E and Senator on the germination of crop. In these versions of the experiment, the highest seed yield and oil harvest are also noted. However, the use of the Zonator is limited only to drug-resistant sunflower hybrids. The use of the herbicide Goal 2E is possible on any varieties and hybrids of sunflower. Despite the damage to the first two real sunflower leaves when using the herbicide Goal 2E for vegetation, the plants are fully restored, which does not significantly affect the productivity of the crop. The proposed schemes for using herbicides can improve the technological and economic efficiency of controlling monocotyledonous and dicotyledonous weeds in sunflower crops

In this article, the results of researches of the influ-ence of terms and norms of crops of a winter rape on growth and development of plants, winter hardi-ness and productivity of cultures in the changed environmental conditions of Rostov region are re-sulted