Archives → 2020 → V. 60. № 1. → pp. 99-107
Article
Influence of Different Types of Organic Fertilizers on the Transfer of 137Cs into the Grain Crops Harvest
N. V. Andreeva1, N. V. Belova1, V. K. Kuznetsov1 and V. P. Grunskaya2
1Russian Institute оf Radiology and Agroecologу, Obninsk, Russia 2Tula Research Institute for Agriculture, Plavsk, Russia
Abstract
Long-term stationary experiments allowed studying the effectiveness of various types of organic fertilizers on sod-podzolic soil and leached chernozem contaminated with 137Cs due to the Chernobyl accident. It was established that the use of litter and liquid manure, straw, green manures on sod-podzolic sandy soil at separate and joint application had a positive effect on soil fertility indicators and reduced the biological mobility of 137Cs. The content of exchangeable forms of 137Cs in soil decreased by 4.2% when ploughing the green manure, in combination with straw, it decreased by 4.1–4.3%, and at the application of straw and green manure against the manure background – by 5.8–8.0%, in comparison to the control. The combined application of straw and green manure against the background of litter manure reduces the accumulation of 137Cs in barley grain by 1.6–2.4 times. The introduction of acidic mid-decomposed peat at a dose of 30 t/ha against NPK background to sod-podzolic sandy soil facilitated an increase in the accumulation of 137Cs in the grain of oats by 1.2–1.5 times. Ploughing of green manure of legumes into a leached chernozem increases the accumulation of 137Cs in grain and straw of winter wheat by 1.4–1.9 times.
Keywords
radionuclides, organic fertilizers, 137Cs, biological mobility
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