Agriculture and forestry

Yakovets Liudmyla – Candidate of Agricultural Sciences, assistant, Department of Botany, Genetics and Plant Protection of Vinnytsia National Agrarian University, (21008, Vinnytsia, Soniachna St. 3, e.mail: ludmila28334@gmail.com).

The article presents the results of ecotoxicological assessment of grain production of agrocenosis according to the content of organochlorine pesticides. The aim of the research is the ecotoxicological assessment of the grain production of agrocenoses by the content of pesticide residues in the conditions of the forest-steppe right-bank. Field studies were conducted on the territory of agricultural enterprises of Shargorodsky, Peschansky and Kalinovsky districts of Vinnitsa region, located in the forest-steppe right-bank. Laboratory analyzes of soil, grain and seeds of field crops of agroecosystems were carried out in certified laboratories (Scientific-measuring agrochemical laboratory of Vinnitsa National Agrarian University and the laboratory of the testing center of Vinnitsa branch of the State Institution «Soil Protection Institute of Ukraine»). The studies determined the danger of contamination of grain products of agrocenosis with pesticides and their negative impact on the soil-plant system.

The research results showed that due to the resource-saving level of chemicalization when growing field crops, the average humus content in the soils of right-bank forest-steppe agroecosystems was 2.3.3.4 %, nitrogen, which is easily hydrolyzed . 63.0-77.0 mg/kg, mobile phosphorus . 120-180 mg/kg, exchange potassium . 68-94 mg/kg, while the hydrolytic acidity was 2.5-3.5 mg. equiv. / 100 g of soil and pH (salt) . 5.0-7.2. The agrochemical parameters of soils of agroecosystems, where intensive levels of chemicalization of agriculture are used, the elemental content, in particular in the available forms of nitrogen, phosphorus and potassium, was 1.4-1.6 times higher, but the hydrolytic acidity was almost halved and the soil pH increased. It was found that when growing winter wheat using resource-saving technologies, the pesticides load per 1 ha of agroecosystem is 3.53 l/ha, and for intensive technologies – 4.73 l/ha.

When growing spring barley, respectively, 3.53 l/ha and 4.03 l/ha, and corn - 0 and 0.85 l/ha. In general, the cultivation of winter wheat by intensive technologies causes an increase in pesticides load per 1 ha of agroecosystem by 25.4 % compared to resource-saving technology, the cultivation of spring barley by 12.4 %, and corn by 98.8 %.

It was established that in the forest ecosystems of the right-bank steppe at different levels of chemicalization of agriculture, the actual fluctuations in the agrochemical parameters of the soil depended on the field and predecessor crop rotation, and the content of organochlorine pesticide residues differed within the error and did not exceed their maximum permissible concentrations. The content of residual trace amounts of ã - HCH in the grain and seeds of the studied cultures was less than 0.02 mg/kg with a MPC of 0.5 mg/kg, DDT . less than 0.02 mg/kg with a MPC of 0.2 mg/kg.

1.Matusevych H. D. (2004). Ekotoksykolohichne obgruntuvannya zastosuvannya suchasnykh pestytsydiv pry vyroshchuvanni yarykh zernovykh kulʹtur za riznykh tekhnolohiy v umovakh Pivnichnoho Lisostepu Ukrayiny [Ecotoxicological substantiation of application of modern pesticides in cultivation of spring cereals under different technologies in the conditions of Northern Forest-Steppe of Ukraine]: avtoref. dys… kand s.-h. nauk: 03.00.16 – ekolohiya. Kyyiv. 18 [in Ukrainian].

2.Radionovskaya Y. E. (2012). Otsenka ekologicheskogo riska primeneniya pestitsidov pri zashchite vinogradnykh nasazhdeniy Ukrainy ot vrednykh organizmov [Environmental risk assessment of the use of pesticides in the protection of grape plantations of Ukraine from harmful organisms]. Vinogradarstvo i vinodeliye. – Viticulture and winemaking. 36–42. [in Ukrainian].

3.Reyn Morton. K. Sharn. (2004). Silske hospodarstvo Ukrayiny [Agriculture of Ukraine]. Posibnyk dlya vyrobnyka. K.: Naukova dumka. [in Ukrainian].

4.Bublyk L. I., Hunchak V. M. (2005). Ekotoksykolohichnyy ryzyk zastosuvannya pestytsydiv v tekhnolohiyi vyroshchuvannya ozymoyi pshenytsi v Lisostepu ta Peredhiryi Chernivetsʹkoyi oblasti [Ecotoxicological risk of pesticide application in winter wheat cultivation technology in the Forest-Steppe and Foothills of Chernivtsi region]. Mizhvidomchyy tematychnyy zbirnyk. Zakhyst i karantyn roslyn. – Interagency thematic collection. Protection and quarantine of plants. 51. 86–93. [in Ukrainian].

5.Lahutenko O. T. (2012). Ahroekolohiya [Agroecology]. Navchalne vydannya. Kyyiv: NPU im. M. P. Drahomanova. 206. [in Ukrainian].

6.Gorbatov V. S., Matveyev Y. M., Kononova T. V. (2008). Ekologicheskiya otsenka pestitsidov: istochniki i formy informatsii [Ecological assessment of pesticides: sources and forms of information]. Agro-KHKHÍ. 1–3. 7–9. [in Ukrainian].

7.Monarkh V. V. (2014). Otsinka ekolohichnykh ryzykiv zabrudnennya pestytsydamy komponentiv ahroekosystemy [Assessment of environmental risks of pesticide contamination of agroecosystem components]. Zbalansovane pryrodokorystuvannya – Balanced nature management.. 1. 1–2. [in Ukrainian].

8.Kavetskiy V. M., Makarenko N. A., Kitsno L. V., Bublik L. I. (1996). Monitoring pestitsidov i ekotoksikologicheskiye kriterii ikh primeneniya v agroekosistemakh [Monitoring of pesticides and ecotoxicological criteria for their use in agroecosystems]. Agroyekologíya í bíotekhnologíya. K.: Agrarna nauka. 34–46. [in Ukrainian].

9.Yakovetsʹ L. A. (2016). Intensyvnist khimizatsiyi tekhnolohiy pry vyroshchuvanni zernovoyi produktsiyi u Vinnytskiy oblasti [Intensity of chemicalization of technologies in grain production in Vinnytsia region]. Ekolohichni problemy silʹsʹkoho vyrobnytstva: Zbirnyk naukovykh pratsʹ Vseukrayinsʹkoyi naukovo-praktychnoyi konferentsiyi. Vinnytsya: VNAU. 75–76. [in Ukrainian].

10.Lobachevska O. V. (2007). Mekhanizmy tolerantnosti roslyn ta yikh adaptatsiya do stresu. [Mechanisms of plant tolerance and their adaptation to stress]. Naukovi osnovy zberezhennya biotychnoyi riznomanitnosti: materialy 8-oyi nauk. konferentsiyi molodykh uchenykh. Lviv. 25–31. [in Ukrainian].

11.Petryshyna V. A. (2009) Ahroekolohichne obgruntuvannya fitoremediatsiynoyi spromozhnosti dykoroslykh vydiv roslyn [Agroecological substantiation of phytoremediation capacity of wild plant species]: avtoref. dys… kand s.-h. nauk: 03.00.16 – ekolohiya. Kyyiv. 21. [in Ukrainian].

12.Butsyak H. A., Kalyn B. M. (2014). Zberezhennya biolohichnoho riznomanittya v ahroekosystemy [Conservation of biological diversity in agroecosystems]. Silʹsʹkyy hospodar – The farmer. 9/10. 30–32. [in Ukrainian].