Agriculture and forestry

Palamarchuk Vitalii – Doctor of Agricultural Sciences, Associate Professor of the Department of Plant Production, Selection and Bioenergetic cultures (21008, Vinnytsia, Soniachna Str. 3, е-mail: vd-palamarchuk@ukr.net).

Kovalenko Oleg Anatolyevich – Candidate of Agricultural Sciences, Associate Professor of the department of plant growing and landscape gardening in Nikolaev National Agrarian University (54020, Nikolaev, st. Georgi Gongadze, 9. email: kovalenko_oleh@ukr.net).

The article highlights the results of studying the impact of foliar fertilization with microfertilizers “Nanomix”, “Rostock”, “Reacom”, “Kvantum”, bacterial preparations “Azotofit”, “Phytocid”, “Biocomplex-BTU” and “Organic- balance"”on the yield of peas Oplot. The field research was conducted under the conditions of the educational-scientific and practical center of Mykolaiv National Agrarian University of the Southern Steppe Zone of Ukraine. The soil of the experimental field is the southern blacksoil of medium-loamy weakly saline. For pea sowing, grainy sowing was used СЗ-3,6 ASTRA with a sowing rate of 220 kg/ha (800000 pieces of germinating seeds per 1 hectare). The depth of seed seeding was – 5-6 cm. Seeds treated with Vitavax200 FF disinfectant (2.5-3 l / t) were used for sowing. Different variants of applying preparations in the phase of branching, budding and joint processing of plants have been researched. The efficiency of foliar fertilization preparations on the formation of pea yield has been analysed. The maximum yield of peas was formed using foliar fertilization with microfertilizer Nanomix in the phase of branching and budding in conjunction with the biological product Organic-balance and was 2.74 t / ha. With the use of biologicals on the background of microfertilizer Nanomix, the best option for the formation of crop yields of peas (2.56 t / ha) was foliar feeding in the branching phase + budding phase. By factor B, the best option was fertilization with Nanomix in the branching phase + budding phase, with a yield of 2.63 t / ha, and among the biological products for foliar feeding was Organic Balance, which formed an average yield of 2.58 t / ha. Our calculated polynomial correlation-regression dependences of pea yield on the use of Nnomix microfertilizer and biological preparations at different phases of plant treatment have showed that there is a very strong relationship between these formulations, which have been taken for the research and the yield. The coefficient of determination (R2) ranges from 0.651 to 0.940 with the use of Azotofit, from 0.658 to 0.903 - Phytocid, from 0.687 to 0.706 - Biocomplex and from 0.922 to 0.956 - Organic balance varies from 0.651 to 0.956, which is on a scale Cheddock characterized by such a statistical relationship as medium and strong. As a result of our research on the use of preparations and microfertilizers for foliar feeding of vegetative pea plants in different phases of its growth, the best options were using microfertilizers Reacom and Kvantum in the branching phase and the tank mixture of microfertilizers Reacom and Kvantum with Biocomplex-BTU and Organic balance in the budding phase. These options provided a pea yield of 2.86-2.91 t / ha.

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