Effects of elevated CO2 on hydraulic performance and carbon assimilation of Schefflera arboricola

Ng, Charles Wang Wai; To, Justin Chun Ting; Lau, Sze Yu; Liao, Jia Xin; Bordoloi, Sanandam

doi:10.1007/s11368-022-03372-z

Cited by 1 publication

(1 citation statement)

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“…Hence, we can expect response in different magnitude depending on whether it is plant or animal based and on the degree of hemicellulose/lignin concentration. Some potential alternatives to boost yield with biochar include both inhouse modifications (elevated CO2 and N concentration;Ng et al, 2022;Šimanský et al, 2018) and field soil modification using biopolymers and synthetic nutrients (Aydin et al, 2020;Rattan et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

Influence of biochar on improving hydrological and nutrient status of two decomposed soils for yield of medicinal plant - Pinellia ternata

Touyon

Bordoloi

2023

Journal of Hydrology and Hydromechanics

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The root tuber of Pinellia ternata has been used as a traditional therapeutic herbal medicine. It is reported to impart beneficial attributes in recovering COVID-19 patients. To meet an increasing demand of P. ternata, this study is intended to investigate the effects of biochar on the soil hydrological and agronomic properties of two decomposed soils (i.e., completely decomposed granite (CDG) and lateritic soil) for the growth of P. ternata. The plant was grown in instrumented pots with different biochar application rate (0%, 3% and 5%) for a period of three months. Peanut shell biochar inclusion in both soils resulted in reduction of soil hydraulic conductivity and increase in soil water retention capacity. These alterations in hydrological properties were attributed to measured change in total porosity, biochar intra pore and hydrophilic functional groups. The macro-nutrient (i.e., N, P, K, Ca, and Mg) concentration of both soils increased substantially, while the pH and cation exchange capacity levels in the amended soils were altered to facilitate optimum growth of P. ternata. The tuber biomass in biochar amended CDG at all amendment rate increases by up to 70%. In case of lateritic soil, the tuber biomass increased by 23% at only 5% biochar application rate. All treatments satisfied the minimum succinic acid concentration required as per pharmacopoeia standard index. The lower tuber biomass exhibits a higher succinic acid concentration regardless of the soil type used to grow P. ternata. The biochar improved the yield and quality of P. ternata in both soils.

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