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Anaerobic digestion of biomass produces biogas for combustion and also provides a residual digestate. Although sometimes regarded as a waste product, the nutrient‐rich chemical composition of digestate makes it a potential organic fertilizer for agriculture. The goal of this study was to evaluate the effectiveness of digestate as a fertilizer on the biomass yield and chemical composition of cocksfoot...
This study aim to evaluate the distribution of bioactive compounds in the tubers of organically grown Jerusalem artichoke (JA) during the growing season in 2012–2014. Field experiments on the three JA cultivars: Albik, Rubik and Sauliai, were carried out at the organic farm in South Lithuania. The tubers were uprooted at the end of each month of the growing period (8 times) in March–June (spring period)...
The effects of different types of green manure (Trifolium pratense L., Dactylis glomerata L., and Secale cereale L.) and the time of its input into the soil (autumn and spring) on the contents of humus and labile humus substances in a soddy-podzolic soil and the relationship between the formation of humus and the chemical composition of the applied biomass were studied. Green manure had a positive...
The content and fractional composition of humus in soil exposed to conventional, shallow and minimum tillage for 40 years was investigated on Cambisols. Humus status depended on tillage methods and depth. In cultivated soil, conventional annual tillage can be replaced by shallow or minimum tillage, since this significantly increased soil humus content in the 0–10 and 10–20 cm soil layers. In both...
Ilość próchnicy i jej skład - to najważniejsze wskaźniki żyzności gleby, dlatego też niezbędne jest określenie wpływu różnych zabiegów agrotechnicznych na zmiany ich wartości. Jakość próchnicy oceniano metodą Tiurina w modyfikacji Ponomariewej i Płotnikowej. Wyodrębniono 3 frakcje kwasów huminowych oraz 4 frakcje fulwokwasów. Stwierdzono, że stopień humifikacji materiału organicznego sięga 35% przy...
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