Influence of biochar addition to fluvisol on maize yield and soil microbiota

A three-year field experiment with maize was carried out on fluvisol. The aim of the present study was to evaluate the impact of biochar on maize yield at different levels of water stress and its effect on the amount of soil microorganisms. The following variants were studied: control with no biocha...

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Main Authors: Maya Benkova, Lyuba NENOVA, Tsetska SIMEONOVA, Galina PETKOVA, Angelina MIKOVA, Irena ATANASSOVA
Format: Article
Language:Bulgarian
Published: University of Zagreb, Faculty of Agriculture 2022-06-01
Series:Journal of Central European Agriculture
Subjects:
Online Access:https://jcea.agr.hr/articles/772394_Influence_of_biochar_addition_to_fluvisol_on_maize_yield_and_soil_microbiota_en.pdf
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author Maya Benkova
Lyuba NENOVA
Tsetska SIMEONOVA
Galina PETKOVA
Angelina MIKOVA
Irena ATANASSOVA
author_facet Maya Benkova
Lyuba NENOVA
Tsetska SIMEONOVA
Galina PETKOVA
Angelina MIKOVA
Irena ATANASSOVA
author_sort Maya Benkova
collection DOAJ
description A three-year field experiment with maize was carried out on fluvisol. The aim of the present study was to evaluate the impact of biochar on maize yield at different levels of water stress and its effect on the amount of soil microorganisms. The following variants were studied: control with no biochar addition, and variants with biochar. Biochar was applied in 2 t/ha in 2016, produced by pyrolysis of rice straw, then in 3 t/ha in 2017 and 10 t/ha in 2018, both obtained by pyrolysis of oak bark. These variants were divided into three more depending on the irrigation regime: i.e. non-irrigated, irrigation at dT>0 °C, and irrigation at dT<-1 °C. Under non-irrigated conditions, the effect of biochar on maize yield was not pronounced over three years. Under irrigation conditions with water added according to crop water stress, higher yields of maize were obtained in the third year when biochar application to the soil was highest (10 t/ha). Also, yield was higher when faster (at lower water stress dT<-1 °C) irrigation rates were applied. Soil moisture changed slowly in the biochar variants and the best values of the temperature differences were obtained for irrigation at dT<-1 °C in 2018. These results showed that the influence of biochar on soil microbiota was significantly greater, and the most stimulating effect of biochar was obtained for bacterial populations.
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spelling doaj.art-9a31249b3ca94125a64b3334aa1328192022-12-22T03:33:50ZbulUniversity of Zagreb, Faculty of AgricultureJournal of Central European Agriculture1332-90492022-06-0123241342210.5513/JCEA01/23.2.3413Influence of biochar addition to fluvisol on maize yield and soil microbiotaMaya BenkovaLyuba NENOVATsetska SIMEONOVAGalina PETKOVAAngelina MIKOVAIrena ATANASSOVAA three-year field experiment with maize was carried out on fluvisol. The aim of the present study was to evaluate the impact of biochar on maize yield at different levels of water stress and its effect on the amount of soil microorganisms. The following variants were studied: control with no biochar addition, and variants with biochar. Biochar was applied in 2 t/ha in 2016, produced by pyrolysis of rice straw, then in 3 t/ha in 2017 and 10 t/ha in 2018, both obtained by pyrolysis of oak bark. These variants were divided into three more depending on the irrigation regime: i.e. non-irrigated, irrigation at dT>0 °C, and irrigation at dT<-1 °C. Under non-irrigated conditions, the effect of biochar on maize yield was not pronounced over three years. Under irrigation conditions with water added according to crop water stress, higher yields of maize were obtained in the third year when biochar application to the soil was highest (10 t/ha). Also, yield was higher when faster (at lower water stress dT<-1 °C) irrigation rates were applied. Soil moisture changed slowly in the biochar variants and the best values of the temperature differences were obtained for irrigation at dT<-1 °C in 2018. These results showed that the influence of biochar on soil microbiota was significantly greater, and the most stimulating effect of biochar was obtained for bacterial populations.https://jcea.agr.hr/articles/772394_Influence_of_biochar_addition_to_fluvisol_on_maize_yield_and_soil_microbiota_en.pdfbiochargrainwater regimenutrient uptakemicrobial activity
spellingShingle Maya Benkova
Lyuba NENOVA
Tsetska SIMEONOVA
Galina PETKOVA
Angelina MIKOVA
Irena ATANASSOVA
Influence of biochar addition to fluvisol on maize yield and soil microbiota
Journal of Central European Agriculture
biochar
grain
water regime
nutrient uptake
microbial activity
title Influence of biochar addition to fluvisol on maize yield and soil microbiota
title_full Influence of biochar addition to fluvisol on maize yield and soil microbiota
title_fullStr Influence of biochar addition to fluvisol on maize yield and soil microbiota
title_full_unstemmed Influence of biochar addition to fluvisol on maize yield and soil microbiota
title_short Influence of biochar addition to fluvisol on maize yield and soil microbiota
title_sort influence of biochar addition to fluvisol on maize yield and soil microbiota
topic biochar
grain
water regime
nutrient uptake
microbial activity
url https://jcea.agr.hr/articles/772394_Influence_of_biochar_addition_to_fluvisol_on_maize_yield_and_soil_microbiota_en.pdf
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AT lyubanenova influenceofbiocharadditiontofluvisolonmaizeyieldandsoilmicrobiota
AT tsetskasimeonova influenceofbiocharadditiontofluvisolonmaizeyieldandsoilmicrobiota
AT galinapetkova influenceofbiocharadditiontofluvisolonmaizeyieldandsoilmicrobiota
AT angelinamikova influenceofbiocharadditiontofluvisolonmaizeyieldandsoilmicrobiota
AT irenaatanassova influenceofbiocharadditiontofluvisolonmaizeyieldandsoilmicrobiota