Kuht, Jaan; Eremeev, Viacheslav; Talgre, Liina; Alaru, Maarika; Loit, Evelin; Maeorg, Erkki; Esmaeilzadeh-Salestani, Keyvan and Luik, Anne (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, 9 (7), pp. 1-9.
PDF
- Published Version
- English
Available under License Creative Commons Attribution. 532kB |
Document available online at: https://www.mdpi.com/2077-0472/9/7/146
Summary
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 e_ect 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 (Ntot) 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 e_ect 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; Ntot 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 e_ect on the soil Ntot content in either cultivation systems.
EPrint Type: | Journal paper |
---|---|
Keywords: | cropping systems; organic farming; barley; red clover; soil hydrolytic activity; soil organic carbon; total nitrogen |
Agrovoc keywords: | Language Value URI English cropping systems http://aims.fao.org/aos/agrovoc/c_1971 English organic farming -> organic agriculture http://aims.fao.org/aos/agrovoc/c_15911 English barley http://aims.fao.org/aos/agrovoc/c_823 English Red clover -> Trifolium pratense http://aims.fao.org/aos/agrovoc/c_7917 English hydrolysis http://aims.fao.org/aos/agrovoc/c_24940 English soil http://aims.fao.org/aos/agrovoc/c_7156 English SOC -> soil organic carbon http://aims.fao.org/aos/agrovoc/c_389fe908 English total nitrogen http://aims.fao.org/aos/agrovoc/c_bdc779f4 |
Subjects: | Soil > Soil quality > Soil biology Crop husbandry > Soil tillage Farming Systems > Farm nutrient management |
Research affiliation: | Estonia > Estonian University of Life Sciences European Union > CORE Organic > CORE Organic Plus > FertilCrop |
Horizon Europe or H2020 Grant Agreement Number: | 618107 |
ISSN: | 2077-0472 |
DOI: | 10.3390/agriculture9070146 |
Deposited By: | Peetsmann, Ms Elen |
ID Code: | 37831 |
Deposited On: | 01 Apr 2020 10:09 |
Last Modified: | 06 Jan 2021 10:54 |
Document Language: | English |
Status: | Published |
Refereed: | Peer-reviewed and accepted |
Repository Staff Only: item control page