Аgrochemical profile of sod-podzolic soil under mixed forest

The characteristic of agrochemical properties and nitrogen regimen of sod-podzolic soil of the Pre-Urals under a mixed forest is presented. It was established, the investigated soil is characterized by a highly acidic reaction of the throughout the profile, it has a pronounced podzolic horizon 10 cm in thickness, depleted of calcium and magnesium cations. The humus content sharply decreases from 4.44% in the eluvial-humus horizon to 0.27% in the parent rock. It is shown that the total nitrogen content decreases from 3318 mg/kg in the A horizon to 644 mg/kg in the A B horizon and then changes insignificantly. The soil is characterized by a high 1 2 percentage of nonhydrolyzable (64.91 %) and hardly hydrolyzable nitrogen (24.81%) and a low content of mineral nitrogen assimilated by plants (2.36%) in the eluvial-humus horizon. It was revealed that the supply of nitrogen mobile forms in forest soil is high, the content of easily hydrolyzable nitrogen is 267.4 mg/kg, of mineral nitrogen is 73.8 mg/kg.

Keywords

sod podzolic soil (Eutric Albic Retisols (Abruptic)), mixed forest, agrochemical properties, fractional nitrogen composition

Received

18.12.2018

Publication date

18.12.2018

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GOST	Zavyalova N., Vasbieva M., Fomin D., Teterlev I. Аgrochemical profile of sod-podzolic soil under mixed forest // Rossiiskaia selskokhoziaistvennaia nauka – 2018. – Number 6 C. 39-41 [Electronic resource]. URL: http://ras.jes.su/rshn/s207987840001052-6-1-en (circulation date: 25.04.2024). DOI: 10.31857/S250026270001838-6
MLA	Zavyalova, N., Vasbieva, M., Fomin, D., Teterlev, I. "Аgrochemical profile of sod-podzolic soil under mixed forest." Rossiiskaia selskokhoziaistvennaia nauka 6 (2018):39-41. DOI: 10.31857/S250026270001838-6
APA	Zavyalova N., Vasbieva M., Fomin D., Teterlev I. (2018). Аgrochemical profile of sod-podzolic soil under mixed forest. Rossiiskaia selskokhoziaistvennaia nauka (6), pp.39-41 DOI: 10.31857/S250026270001838-6

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