Seasonal dynamics of soil microbial activity after biochar addition in a dryland maize field in North-Western China

Zhu, Liping; Xiao, Qian; Cheng, Hongyan; Shi, Bingjie; Shen, You-Gen; Li, Shiqing

doi:10.1016/j.ecoleng.2017.04.026

Cited by 31 publications

(13 citation statements)

References 55 publications

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“…However, based on the present results it is difficult to demonstrate the unambiguous effect of the applied fertilisation on the activity of these enzymes. The results obtained in this study are confirmed by the literature (Zhu et al, 2017). The quoted authors showed that soil pH, weather conditions and the dynamics of nitrogen compounds conversion have a significant effect on urease activity.…”

Section: Resultssupporting

confidence: 89%

Effect of coapplication of poultry litter biochar and mineral fertilisers on soil quality and crop yield

Mierzwa–Hersztek

Gondek

Klimkowicz‐Pawlas

et al. 2018

Zemdirbyste-Agriculture

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This study evaluated the effects of poultry litter biochar application on soil quality and yield of pasture grass mixture. A micro-plot field experiment was established on an Eutric Cambisol (CM-eu) with five treatments: 1) soil without fertilisation (control), 2) mineral fertilisation (NPK), 3) NPK + poultry litter at a rate of 5 t ha-1 DM (PL), 4) NPK + poultry litter biochar at a rate of 2.25 t ha-1 DM (PLBI) and 5) NPK + poultry litter biochar at a rate of 5 t ha-1 DM (PLBII). Given the need to create comparable conditions, the following rates of mineral fertilisers were used in the experiment: 100 kg ha-1 N, 40 kg ha-1 P and 120 kg ha-1 K. In 2014-2016, soil samples were analysed for changes in biological and chemical properties. Annual biomass production of pasture grass mixture was determined at three harvests per year. To characterize the biological soil properties, the soil enzymatic (dehydrogenases and urease) activity was determined. The results indicated that PLBI and PLBII reduced the contents of available forms of cadmium (Cd), lead (Pb) and zinc (Zn). Significant increase in dehydrogenases activity was observed in the soil with both rates of poultry litter biochar introduced. Coapplication of PLBI or PLBII with mineral fertilisers also increased the total production of biomass of pasture grass mixture compared to the NPK treatment.

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Section: Resultssupporting

confidence: 89%

Effect of coapplication of poultry litter biochar and mineral fertilisers on soil quality and crop yield

Mierzwa–Hersztek

Gondek

Klimkowicz‐Pawlas

et al. 2018

Zemdirbyste-Agriculture

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“…According to Varela Milla et al (2013) applied biochar improved the biomass production by increased plant weight, increased the root size and leaf width. Zhu et al (2017) reported that biochar + NPK amendment of a red soil increased maize total biomass upto 2.7-3.5 and 1.5-1.6 times compared to that of NPK only and biochar only amendments, respectively. Zhang et al (2017) [76] observed that, maize yield was increased to the tune of 11.9 per cent and 35.4 per cent in balanced fertilization system with wheat straw biochar @ 20 t ha -1 over control during two years of study period (2011 and 2012) in calcareous inceptisol soils of China.…”

Section: Impact Of Biochar On Growth Yield and Quality Of Maizementioning

confidence: 99%

Effect of biochar on the growth and yield of cotton and maize: A review

Karthik¹,

Hussainy²,

Rajasekar³

2020

Int. J. Chem. Stud.

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Improper management of soil along with exhaustive monocropping practices have led to loss of soil structure, salinity and erosion and thereby decreasing the soil productivity. Furthermore, misappropriate application of synthetic fertilizers have driven contamination of food and water, pollution of environment creating an endangerment to human health. Therefore, an urgent need to find an alternative solution in improving the soil health without reduction in the productivity from a unit area in a sustainable manner is of prime focus. This review is related to biochar, its role in improving soil fertility in combination with fertilizers and manures on growth and yield of cotton and maize crop. The retention and mobilization of nutrients in biochar applied soil tremendously aid in increasing the fertilizer use efficiency. Moreover, studies have shown improved germination and biomass accumulation over time along with better yield attributes and yield of most crops which majorly include cotton and maize. This lays a foundation to utilize abundantly available problematic plant Prospis sp. and crop residues like cotton and maize from agricultural fields for biochar preparation rather than burning thus supporting in the reduction of global warming issues.

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“…Notably, increases in CO 2 emissions from biochar-amended soil were reported by Sui et al [38], which might be contributed to the volatile organic C contained in the biochar [39]. Soil microbial activities fluctuated by biochar suggested that the long-term CO 2 emissions from biochar amended soils may be influenced indirectly as a result of possible alterations in soil physico-chemical and biological properties following biochar addition throughout the crop growing season in a dry agricultural system [40,41].The underlying mechanism of soil C mineralization induced by biochar addition needs further investigation for the different probable reasons showed by the above studies.…”

Section: Biochar Impact On Soil Co 2 Emissionsmentioning

confidence: 99%

Effects of Biochar Application on CO2 Emissions from a Cultivated Soil under Semiarid Climate Conditions in Northwest China

et al. 2017

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Biochar amendments to soil have potential as a climate change mitigation strategy. However, their effect on carbon exchange in different ecosystems has not been well evaluated. Understanding how biochar affects carbon exchange from agricultural soil is essential for clarifying the contribution of biochar management to the carbon budget. We performed a laboratory and a two-year field experiment to investigate the short-and medium-term effects of biochar application on CO 2 emissions from semiarid farmland. There was no statistically significant alteration in the cumulative CO 2 emissions from the mixture of soil with biochar alone, while the emissions increased significantly with additional nitrogen amendment over the 46-day experimental period. Over the two-year experimental period, the cumulative CO 2 emissions from the field experiment decreased in the biochar-amended treatment, and the effects were significant at high application rates (20 and 30 t·ha −1 ) relative to the control in the MS. The seasonal CO 2 dynamics were strongly dependent on soil temperature, with a higher correlation with the temperature at a depth of 10cm than with the temperature at a depth of 0cm. Soil temperature, rather than soil water content, was the major environmental factor controlling the soil carbon exchange in the semiarid farmland of the Loess Plateau. In general, biochar additions enhanced aboveground dry matter accumulation in both the early and late stages of maize growth. The results suggested that biochar amendment was a preferable management practice to help maintain or increase carbon sequestration for this region with lower CO 2 emissions and higher dry matter production over a longer period.

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Seasonal dynamics of soil microbial activity after biochar addition in a dryland maize field in North-Western China

Cited by 31 publications

References 55 publications

Effect of coapplication of poultry litter biochar and mineral fertilisers on soil quality and crop yield

Effect of coapplication of poultry litter biochar and mineral fertilisers on soil quality and crop yield

Effect of biochar on the growth and yield of cotton and maize: A review

Effects of Biochar Application on CO2 Emissions from a Cultivated Soil under Semiarid Climate Conditions in Northwest China

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