Pig manure digestate‐derived biochar for soil management and crop cultivation in heavy metals contaminated soil

• DOI: 10.1111/sum.12773
• Publication Date: 2021-10-25T16:35:31Z
• Authors: Muhammad Ayaz; Urte Stulpinaite; Dalia Feiziene; Vita Tilvikiene; Kashif Akthar; Edita Baltrėnaitė...; Nerijus Striugas; Urooj Rehmani; Sahib Alam; Rashid Iqbal; Monika Toleikiene; Modupe Doyeni
• Keywords: Digestate; Amendment

Abstract Management of heavy metal‐contaminated soil under drought and other harsh hydrological conditions is critical for protecting ecosystem services. In this study, we examined the effect pig manure digestate‐derived biochar as a amendment (15 t ha −1 ) with N fertilizer (180 kg on plant metal levels nutrient availability various moisture regimes (optimal ~15%, condition ≤5%, flooded ≥35% wt.). It was observed that applications significantly decreased metals in spring wheat plants, lowering Cr by 90%, Ni 50%, Cd 9% Pb 34% compared to non‐biochar (control) treatments. However, increased all regimes, increasing 21%, 43%, Cu 55%, Zn 70%, 12%. The macroelements also optimum both Mg 2+ 11%, P 4%, K + Ca 56% soil, 13%, 69%, 29, 39% plants. Biochar addition improved chlorophyll fluorescence (CF) crop entire season (12 th 62 nd day) aboveground biomass dry matter contents increased. Consequently, use normal able reduce plants thus could be used contaminated soils maintain better growth development.