Abstract
The aim of the conducted observations was to examine the effect of fertiliser produced based on plant digestate and resulting from the process of anaerobic fermentation of a substrate with sorghum (20%), beet (60%), rye (10%) and grass (10%) on the growth and yield of sorghum and corn. A strict, single-factor pot experiment was carried out in 2017–2018 in the Swojec Agricultural Experimental Unit at the University of Life Sciences in Wrocław. Fertilisation with digestate was the tested factor, with a focus on its influence on selected energy plants. Sucrosorgo sorghum and Atletico maize were analysed. During the research, the pots were placed in a vegetation hall. The research proved that the use of digestate-based fertiliser improves the productivity of both sorghum and maize, but only with an additional dose of basic macronutrients. The optimal variant is a fertiliser dose of 20 g enriched with 1.0 NPK. Increasing the dose to 30 g and 1.5 NPK generally did not result in a significant increase in plant height or in fresh and dry weights.
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Claims 6
Claim · model-written summary
Digestate fertilizer improved sorghum productivity only with additional macronutrients.
- Treatment
- digestate-based fertilisere0
- Outcome
- productivitye0
- Direction
- improvese0
- Qualifier
- only with an additional dose of basic macronutrientse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the use of digestate-based fertiliser improves the productivity of both sorghum and maize, but only with an additional dose of basic macronutrients”
Claim · model-written summary
Digestate fertilizer improved maize productivity only with additional macronutrients.
- Treatment
- digestate-based fertilisere0
- Outcome
- productivitye0
- Direction
- improvese0
- Qualifier
- only with an additional dose of basic macronutrientse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the use of digestate-based fertiliser improves the productivity of both sorghum and maize, but only with an additional dose of basic macronutrients”
Claim · model-written summary
A 20 g fertilizer dose enriched with 1.0 NPK was optimal for sorghum.
- Outcome
- fertiliser dose of 20 g enriched with 1.0 NPKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The optimal variant is a fertiliser dose of 20 g enriched with 1.0 NPK”
e1“Sucrosorgo sorghum”
Claim · model-written summary
A 20 g fertilizer dose enriched with 1.0 NPK was optimal for maize.
- Outcome
- fertiliser dose of 20 g enriched with 1.0 NPKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The optimal variant is a fertiliser dose of 20 g enriched with 1.0 NPK”
e1“Atletico maize”
Claim · model-written summary
A larger dose did not significantly increase plant height.
- Taxon
- sorghum and corn
SorghumZea mays subsp. mayse1
- Treatment
- 30 g and 1.5 NPKe0
- Outcome
- plant heighte0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Increasing the dose to 30 g and 1.5 NPK generally did not result in a significant increase in plant height”
e1“growth and yield of sorghum and corn”
Claim · model-written summary
A larger dose did not significantly increase fresh and dry weights.
- Taxon
- sorghum and corn
SorghumZea mays subsp. mayse1
- Treatment
- 30 g and 1.5 NPKe0
- Outcome
- fresh and dry weightse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Increasing the dose to 30 g and 1.5 NPK generally did not result in a significant increase in plant height or in fresh and dry weights”
e1“growth and yield of sorghum and corn”
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