Agriculture and forestry

Mazur Viktor Anatoliyovych – Candidate of Agricultural Sciences, Associate Professor of the department of plant production, selection and bioenergetic cultures, rector of the Vinnitsa National Agrarian University, vice-president of the All-Ukrainian scientific-training consortium, (21008, Vinnytsia, vul. Solar, 3).

Vergelis Victoria Ihorivna – assistant of the department of ecology and environmental protection, Vinnytsia National Agrarian University (21008, Vinnytsia, 3, Solnychna St., e-mail: viktoriya_iv47@ukr.net).

The soils suitability of scientific and experimental farm «Agronomichne» for the growing of organic products by the content of heavy metals is analyzed in the article. 

It has been found that the content of lead, cadmium, zinc and copper in the soils of scientific and experimental farm «Agronomichne» was different. The concentration of lead varied from 0.65 to 1.25 mg/kg, of cadmium – from 0.11 to 0.16 mg/kg, of zinc – from 1.9 to 2.65 mg/kg and that one of copper – from 0.73 to 1.17 mg/kg. That is, the difference in the contents of lead was by 1.92 times, of cadmium – by 1.45 times,of zinc – by 1.39 times and of copper – by 1.60 times on the plots. It has been determined that the content of lead, cadmium, zinc and copper on the experimental plots was significantly lower than MAC, indicating a favorable state of soils for the growing of organic products. The concentration of lead, cadmium, zinc and copper in the soil on the plot 1 was lower than MAC by 4.8; 4.3; 8.6 and 2.5 times, respectively. The concentration of lead, cadmium, zinc and copper in the soil on the plot 2 was lower than MAC by 7.0; 5.8; 10.2 and 3.1 times, respectively. The concentration of lead, cadmium, zinc and copper in the soil on the plot 3 was lower than MAC by 5.4; 6.3; 12.1 and 4.1 times, respectively. The concentration of lead was by 9.2 times, of cadmium by 5.3 times, of zinc by 11.5 times and that one of copper by 3.5 times lower than MAC in the soil on the plot 4. The concentration of lead, cadmium, zinc and copper in the soil on the plot 5 was lower than MAC by 5.7; 6.3; 9.3 and 3.1 times, respectively. 

It has been defined that the average concentration of lead is 1.25 mg/kg, of zinc – 2.65 mg/kg and of copper – 1.17 mg/kg on the plot 1. The average concentration of lead, zinc and copper on the plot 2 is 0.85 mg/kg, 2.25 mg/kg and 0.95 mg/kg, respectively. Analyzing the content of micronutrients and heavy metals in the soils on the plot 3, it has been found that the concentration of lead is 1.1 mg/kg, of zinc – 1.9 mg/kg and that one of copper – 0.73 mg/kg. The average concentration of lead, zinc and copper on the plot 4 is 0.65 mg/kg, 2.0 mg/kg and 0.84 mg/kg, respectively. Determining the content of micronutrients and heavy metals in the soils on the plot 5, it has been found that the concentration of lead is 1.05 mg/kg, of zinc – 2.45 mg/kg and that one of copper – 0.98 mg/kg. That is, the average concentration of lead is less than 6.0 mg/kg, of zinc is in the range of 1.0 – 23.0 mg/kg and that one of copper is in the range of 0.5 – 3.0 mg/kg on all experimental plots. It means that the concentration of heavy metals as microelements is favorable for the growth and development of plants. It has been determined that the soils of the scientific and experimental farm «Agronomichne» belong to the first class with the category «suitable» for organic production.

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