Effect of growing intermediate crops prone to frost kill on the retention and increase of N supply in the soil

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26296080%3A_____%2F21%3AN0000107" target="_blank" >RIV/26296080:_____/21:N0000107 - isvavai.cz</a>

Result on the web

<a href="https://www.sgem.org/index.php/elibrary?view=publication&task=show&id=8121" target="_blank" >https://www.sgem.org/index.php/elibrary?view=publication&task=show&id=8121</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2021/5.1/s20.020" target="_blank" >10.5593/sgem2021/5.1/s20.020</a>

Result language

angličtina

Original language name

Effect of growing intermediate crops prone to frost kill on the retention and increase of N supply in the soil

Original language description

The main goal of research was to assess whether the growing of intermediate crops prone to frost kill could contribute to increase the capacity of arable land for the retention of N-substances. In 2018, a field experiment was established, in which the following intermediate crops were grown in the period between the main crops (wheat - corn): (i) Trifolium vesiculosum Savi., (ii) Trifolium pannonicum Jacq., (iii) Trifolium subterraneum L., and a control variant with no inter crop. The intermediate crops were sown after the harvest of winter wheat on 25 July 2018 and were left on the plot until the next crop of corn was sown on 25 May 2019. They froze out naturally during the winter months, and the corn was sown directly into biomass residues. Parameters monitored were Nmin soil contents in autumn and spring, biomass produced and the content of N-substances in the plants. The growing of intermediate crops had a positive effect on the retention of Nmin in the soil, particularly before sowing the main crop. In the variants of Trifolium vesiculosum Savi L. and Trifolium subterraneum L., the supply of Nmin significantly (P < 0.05) increased in spring, on average by more than 50 kg N/ha. Another benefit was N retained in the plant biomass when the individual species succeeded in producing such an amount of biomass in autumn that they were capable of fixing from 40 to 180 kg N/ha. This N was subsequently slowly released through the natural process of mineralization. The growing of intermediate crops prone to frost kill can be therefore considered a method suitable for increasing the soil capacity to retain the reactive N.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

40101 - Agriculture

Project

<a href="/en/project/TH03030236" target="_blank" >TH03030236: Cultivation of corn for grain in a controlled mixed culture system with using clover</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ecology & Environmental Protection

ISSN

13142704

e-ISSN

—

Volume of the periodical

21

Issue of the periodical within the volume

5.1

Country of publishing house

BG - BULGARIA

Number of pages

7

Pages from-to

91-97

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85131699688