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Changes in the Soil Microbial Hydrolytic Activity and the Content of Organic Carbon and Total Nitrogen by Growing Spring Barley Undersown with Red Clover in Different Farming Systems

Author

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  • Jaan Kuht

    (Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R.Kreutzwaldi 1, EE51014 Tartu, Estonia)

  • Viacheslav Eremeev

    (Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R.Kreutzwaldi 1, EE51014 Tartu, Estonia)

  • Liina Talgre

    (Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R.Kreutzwaldi 1, EE51014 Tartu, Estonia)

  • Maarika Alaru

    (Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R.Kreutzwaldi 1, EE51014 Tartu, Estonia)

  • Evelin Loit

    (Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R.Kreutzwaldi 1, EE51014 Tartu, Estonia)

  • Erkki Mäeorg

    (Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R.Kreutzwaldi 1, EE51014 Tartu, Estonia)

  • Keyvan Esmaeilzadeh-Salestani

    (Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R.Kreutzwaldi 1, EE51014 Tartu, Estonia)

  • Anne Luik

    (Chair of Plant Health, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R. Kreutzwaldi 1, EE51014 Tartu, Estonia)

Abstract

The experiments were carried out during 2012–2017. There were 5 crops in rotation: Red clover, winter wheat, pea, potato and barley undersown (us) with red clover. There were 5 cropping systems in the experimental setup: 2 conventional systems with chemical plant protection and mineral fertilizers; 3 organic systems which included winter cover crops and farm manure. The aim of the present research was to study the effect of cultivating barley undersown with red clover and the preceding winter cover crop on the soil microbial hydrolytic activity, the change in the content of soil organic carbon (SOC) and total nitrogen (N tot ) compared to the same parameters from the field that was previously under potato cultivation (forecrop of barley in the rotation). The cultivation of barley with red clover (barley (us)) had a positive impact on the soil micro-organisms activity. In organic systems the soil microbial hydrolytic activity increased on average by 19.0%, compared to the conventional systems. By cultivating barley (us) the soil microbial hydrolytic activity had a significant effect on the SOC content only in organic systems where winter cover crops were used. Organic cultivation systems had positive impact on the soil nitrogen content; N tot in samples taken before sowing the barley (us) was higher by 17.4% and after the cultivation of barley (us) by 14.4% compared to conventional systems, as an average of experimental years. After cultivation of barley (us) with red clover the soil microbial hydrolytic activity had no effect on the soil N tot content in either cultivation systems.

Suggested Citation

  • Jaan Kuht & Viacheslav Eremeev & Liina Talgre & Maarika Alaru & Evelin Loit & Erkki Mäeorg & Keyvan Esmaeilzadeh-Salestani & Anne Luik, 2019. "Changes in the Soil Microbial Hydrolytic Activity and the Content of Organic Carbon and Total Nitrogen by Growing Spring Barley Undersown with Red Clover in Different Farming Systems," Agriculture, MDPI, vol. 9(7), pages 1-9, July.
    • Handle: RePEc:gam:jagris:v:9:y:2019:i:7:p:146-:d:246336
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    References listed on IDEAS

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    1. Odlare, M. & Arthurson, V. & Pell, M. & Svensson, K. & Nehrenheim, E. & Abubaker, J., 2011. "Land application of organic waste - Effects on the soil ecosystem," Applied Energy, Elsevier, vol. 88(6), pages 2210-2218, June.
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    Cited by:

    1. Karin Kauer & Sandra Pärnpuu & Liina Talgre & Viacheslav Eremeev & Anne Luik, 2021. "Soil Particulate and Mineral-Associated Organic Matter Increases in Organic Farming under Cover Cropping and Manure Addition," Agriculture, MDPI, vol. 11(9), pages 1-23, September.
    2. Jaan Kuht & Viacheslav Eremeev & Liina Talgre & Evelin Loit & Erkki Mäeorg & Kalle Margus & Eve Runno-Paurson & Helena Madsen & Anne Luik, 2022. "Soil Microbial Activity in Different Cropping Systems under Long-Term Crop Rotation," Agriculture, MDPI, vol. 12(4), pages 1-11, April.

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