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Effect of biochar amendment on yield and photosynthesis of peanut on two types of soils

Xu, Cheng-Yuan and Hosseini-Bai, Shahla and Hao, Yanbin and Rachaputi, Rao C. N. and Wang, Hailong and Xu, Zhihong and Wallace, Helen (2014) Effect of biochar amendment on yield and photosynthesis of peanut on two types of soils. Environmental Science and Pollution Research . pp. 1-14. ISSN 0944-1344

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Article Link(s): http://dx.doi.org/10.1007/s11356-014-3820-9

Abstract

Abstract Biochar has significant potential to improve crop performance. This study examined the effect of biochar application on the photosynthesis and yield of peanut crop grown on two soil types. The commercial peanut cultivar Middleton was grown on red ferrosol and redoxi-hydrosol (Queensland, Australia) amended with a peanut shell biochar gradient (0, 0.375, 0.750, 1.50, 3.00 and 6.00 %, w/w, equivalent up to 85 t ha−1) in a glasshouse pot experiment. Biomass and pod yield, photosynthesis-[CO2] response parameters, leaf characteristics and soil properties (carbon, nitrogen (N) and nutrients) were quantified. Biochar significantly improved peanut biomass and pod yield up to 2- and 3-folds respectively in red ferrosol and redoxi-hydrosol. A modest (but significant) biochar-induced improvement of the maximumelectron transport rate and saturating photosynthetic rate was observed for red ferrosol. This response was correlated to increased leaf N and accompanied with improved soil available N and biological N fixation. Biochar application also improved the availability of other soil nutrients, which appeared critical in improving peanut performance, especially on infertile redoxihydrosol.
Our study suggests that application of peanut shell derived biochar has strong potential to improve peanut yield on red ferrosol and redoxi-hydrosol. Biochar soil amendment can affect leaf N status and photosynthesis, but the effect varied with soil type.

Item Type:Article
Business groups:Crop and Food Science
Additional Information:Environ Sci Pollut Res
Keywords:Biochar Arachis hypogaea Photosynthesis Nutrient Soil carbon Fertlization
Subjects:Plant culture > Fruit and fruit culture > Nuts
Plant culture > Food crops
Agriculture > Agriculture (General) > Soils. Soil science
Deposited On:20 Jan 2015 02:52
Last Modified:20 Jan 2015 02:52

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