Interactive effects of straw-derived biochar and N fertilization on soil C storage and rice productivity in rice paddies of Northeast China

Sui, Yanghui; Gao, Jiping; Liu, Caihong; Zhang, Wenzhong; Lan, Yu; Li, Shuhang; Meng, Jun; Xu, Zhihong; Tang, Liang

doi:10.1016/j.scitotenv.2015.11.079

Cited by 104 publications

(42 citation statements)

References 54 publications

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“…On the other hand, the decrease of SOC mineralization induced by the absorption of enzymes might also contribute to a decrease in CO 2 emissions. 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: 78%

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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Section: Biochar Impact On Soil Co 2 Emissionsmentioning

confidence: 78%

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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“…The region displays a mean annual temperature of 8°C with precipitation of 628 mm, average light intensity of 793 μmolm -2 s -1 from May to September and a frost-free period of about 150-170 d. The accumulated temperature of periods above 10°C is 3300-3400°C. The annual rainfall tends to occur over a short period while the air temperature is very variable (Sui et al, 2016). Assessment of the basic properties of the soil showed that it contained 25.5 g kg -1 organic matter, 2.42 g kg -1 total N, 105.6 mg kg -1 available N, 12.9 mg kg -1 available P and 100.4 mg kg -1 available K. In this study, we used two maize near-isogenic lines (Shennong 98A and Shennong 98B) with significant differences in response to weak light .…”

Section: Field Designmentioning

confidence: 99%

Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

Qian

Zhang

Zhong

et al. 2017

Emir. J. Food Agric

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“…It is reported that RH and RHC addition to paddy soil, increases the rice production [10] [13] [14] [15]. The results of biochar application to soil on crop production and soil physical properties is diverse and it depends on various factors such as application rate, feedstock used, pyrolysis temperature, crop type and soil type used [16]. Furthermore, the information on the use of RHC and RH application to rice crop and its effect on soil physical properties and rice production are still limited.…”

Section: Introductionmentioning

confidence: 99%

Effects of Rice Husk and Rice Husk Charcoal on Soil Physicochemical Properties, Rice Growth and Yield

Mishra¹,

Taing²,

Hall³

et al. 2017

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To investigate the effect of the application of rice husk (RH) and rice husk charcoal (RHC) on soil properties and rice production, pot experiment comprising of five treatments was conducted. Soil was mixed at the rate of 0 (control), 2% and 4% (w/w) with RH and RHC, respectively with randomized complete block design (RCBD). RHC incorporation had a potential to reduce the acidity of the soil, whereas, RH incorporation had almost no effect on the pH of the soil. RH and RHC amendment both increased the saturated hydraulic conductivity, saturated water content, plant available water and field capacity but decreased the bulk density of soil. Crop growth components at harvest revealed that the highest plant height was recorded in RH4%. However, for the panicle length, panicle weight and number of tillers, the highest value was found in RHC2%, 14.2 cm, 4.0 g and 28.8 cm, respectively. Furthermore, number of panicle, 1000-grains weight and grain yield were also found highest in RHC2%, 22.4 g and 4.41 t/ha, respectively. However, for the number of grain per panicle and percentage of filled grain, the highest value was found in RH4%, 79.0 and 88.5, respectively. The grain yield increased by 38%, 28%, 18% and 22% and the biological yield increased by 27%, 18%, 14%, and 16% for RHC2%, RHC4%, RH2%, and RH4%, respectively, compared to that of the control; however, the significant difference was found only for RHC2% for both. The harvest index increased under all application rates of RH and RHC compared to that of control.

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Interactive effects of straw-derived biochar and N fertilization on soil C storage and rice productivity in rice paddies of Northeast China

Cited by 104 publications

References 54 publications

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

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

Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

Effects of Rice Husk and Rice Husk Charcoal on Soil Physicochemical Properties, Rice Growth and Yield

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