Ecological and economical aspects of winter wheat (Triticum aestivum L.) growing on sod-podzolic soil depending on fertilization and amelioration
| Autor: | H. Rovna, N. Yuvchyk, L. Yashchenko, V. Poliovyi, B. Huk |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Agroecological journal. |
| ISSN: | 2077-4915 2077-4893 |
| Popis: | Assessment of the state and changes forecast of balances of humus and nutrients under the influence of anthropogenic factors, in particular fertilizers which are the criteria for environmental monitoring is given in the article. At the same time, the introduction of an environmentally friendly fertilizer system should ensure the economic efficiency of growing crops on a par with the preservation of soil fertility. The aim was to study the influence of the system of winter wheat fertilization on the balance of humus and nutrient elements on sod-podzolic soil and to establish the economic efficiency in research’s variants. The fertilizer system includes variants with amelioration a 1,0 dose of dolomite flour by the hydrolytic acidity (Hh), mineral fertilizers N120Р60K90 with addition of sulfur S40 and microfertilizer Nutrivant Plus Cereals (2 kg/ha) in foliar application. Methods of research were field trials, calculation, comparative and statistical analysis. Research’s results. Ploughing of plants by-products of back into soil is a source of organic carbon and nutrients. The yield of winter wheat straw in the variants changed from 2.04 to 4.47 t/ha. The largest amount of root (1.27 t/ha) and surface (1.47 t/ha) residues were provided by application 1.0 dose CaMg(CO3)2 and N120Р60K90 with the addition of S40 and microfertilizer Nutrivant Plus Cereals. The above fertilizer system provided a positive humus balance of 1.39 t/ha. The difference of data in variants with and without straw showed that due to straw ploughing in the soil accumulated up to 27–31% of the relative values of the newly formed humus. Optimization of the nutrition conditions due to fertilizers and liming caused an increase uptake of nutrients by culture, which together with unproductive losses led to a decrease of elements balance. At the same time, an increase the elements removal occurred at indicators of the intensity of NPK balance above 100%. This allowed us to conclude that the winter wheat fertilization of N120Р60K90 with the addition S40 and microfertilizer in combination with 1Hh dose of dolomite flour provides extension of sod-podzolic soil fertility along with increasing economic profitability of wheat cultivation. In this case, the grain yield of 3.85 t/ha contributed to the highest (1.52 UAH/ha) payback of fertilizer and liming. |
| Databáze: | OpenAIRE |
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