| Title | Fertilisation of permanent grasslands with digestate and its effect on soil properties and sustainable biomass production |
| Publication Type | Journal Article |
| Year of Publication | 2023 |
| Authors | Holatko J., Hammerschmiedt T., Kucerik J., Kintl A., Baltazar T., Malicek O., Latal O., Brtnicky M. |
| Journal | European Journal of Agronomy |
| Volume | 149 |
| Pagination | 9 |
| Date Published | Sep |
| Type of Article | Article |
| ISBN Number | 1161-0301 |
| Accession Number | WOS:001048264500001 |
| Keywords | Acidity, Agriculture, Agriculture waste fertilizer, ammonia, application, Broadcast hose, carbon, Cattle slurry, depth, injection, Injector application, management, manure application, Microbial activity, n2o emissions, Nutrient mineralization, SURFACE |
| Abstract | Background: Digestate may be used instead of mineral fertilisers for both arable soil or pastures and grasslands. Broadcast or splash spreading of digestate on soil surface may decrease utilisation efficiency of nutrients - available forms of nitrogen (e.g. ammonia) - due to losses by emission. This research aimed to evaluate if the novel approach of split application of digestate deeper into the soil profile of permanent grassland by injection improves multiple soil and plant quality indicators.Methods: Between 2019 and 2021, a small-scale-plot field experiment on permanent grassland with three experimental treatments: (1) control (unamended), (2) injector (20 m3 & BULL;ha-1 of digestate, applied to the soil by injection after the first and the second cut), and (3) hose (20 m3 & BULL;ha-1 of digestate, applied to the soil by hose spreading device after the first and the second cut). Cumulative plant biomass yield and quality were determined throughout the experiment. In October 2021, soil samples were obtained and analysed.Results: The injector application of digestate to soil improved long-termed total carbon sequestration, respirations induced by L-alanine and N-acetyl-& beta;-D-glucosamine, nitrate content and urease activity. Compared to the control, soil pH was significantly decreased due to both approaches of digestate application. Although total nitrogen content did not vary significantly between experimental treatments, the nitrification rate was assumed as moderate in the injector experimental treatment and primarily high in the hose experimental treatment. This led to increased acidification; despite high ammonium content, it hindered further nitrification and lowered urease activity at suboptimal pH. The digestate amendment improved grass biomass yield and its nutritional value, contributing to the increased theoretical methane yield from the grass feedstock of the injector experimental treatment. This is the first report to benefit from this possible agriculture management practice for digestatebased fertilisation of permanent grassland.
|
| Short Title | Eur. J. Agron.Eur. J. Agron. |
| Alternate Journal | Eur. J. Agron. |
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Holatko, Jiri Hammerschmiedt, Tereza Kucerik, Jiri Kintl, Antonin Baltazar, Tivadar Malicek, Ondrej Latal, Oldrich Brtnicky, Martin
Holatko, Jiri/AAX-5624-2020; Kintl, Antonín/AAJ-3773-2021; Látal, Oldřich/AAE-4267-2021
Holatko, Jiri/0000-0003-4156-4673; Kintl, Antonín/0000-0002-0031-083X; Látal, Oldřich/0000-0002-0061-6572
project of Technology Agency of the Czech Republic [TH04030132]; Ministry of Agriculture of the Czech Republic [MZE-RO1223]; Ministry of Education, Youth and Sports of the Czech Republic [FCH-S-23-8297]
The work was supported by the project of Technology Agency of the Czech Republic TH04030132, by the Ministry of Agriculture of the Czech Republic, institutional support MZE-RO1223, with the Institutional support of the Ministry of Agriculture of the Czech Republic in the frame of the Long-Term Conception of the Development of the Research Organization Agricultural Research, Ltd. Troubskoand by Ministry of Education, Youth and Sports of the Czech Republic, grant number FCH-S-23-8297.
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1873-7331
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