Dynamic responses of nitrous oxide emission and nitrogen use efficiency to nitrogen and biochar amendment in an intensified vegetable field in southeastern China

Li, Bo; Bi, Zhichao; Xiong, Zhengqin

doi:10.1111/gcbb.12356

Cited by 90 publications

(35 citation statements)

References 35 publications

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“…A similar result was revealed by Li et al. () for vegetable crops. Joint application of mineral N, P, and K can have positive interactions with crop yield ( Bandel and Griffith , ).…”

Section: Discussionsupporting

confidence: 90%

Eucalyptus biochar application enhances Ca uptake of upland rice, soil available P, exchangeable K, yield, and N use efficiency of sugarcane in a crop rotation system

Butphu

Rasche

Cadisch

et al. 2019

J. Plant Nutr. Soil Sci.

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It was hypothesized that the application of eucalyptus biochar enhances nutrient use efficiencies of simultaneously supplied fertilizer, as well as provides additional nutrients (i.e., Ca, P, and K), to support crop performance and residual effects on subsequent crops in a degraded sandy soil. To test this hypothesis, we conducted an on-farm field experiment in the Khon Kaen province of Northeastern Thailand to assess the effects of different application rates of eucalyptus biochar in combination with mineral fertilizers to upland rice and a succeeding crop of sugarcane on a sandy soil. The field experiment consisted of three treatments: (1) no biochar; (2) 3.1 Mg ha -1 biochar (10.4 kg N ha -1 , 3.1 kg P ha -1 , 11.0 kg K ha -1 , and 17.7 kg Ca ha -1 ); (3) 6.2 Mg ha -1 biochar (20.8 kg N ha -1 , 6.2 kg P ha -1 , 22.0 kg K ha -1 , and 35.4 kg Ca ha -1 ). All treatments received the same recommended fertilizer rate (32 kg N ha -1 , 14 kg P ha -1 , and 16 kg K ha -1 for upland rice; 119 kg N ha -1 , 21 kg P ha -1 , and 39 kg K ha -1 for sugarcane). At crop harvests, yield and nutrient contents and nitrogen (N) use efficiency were determined, and soil chemical properties and pH 0 monitored. The eucalyptus biochar material increased soil Ca availability (117 28 and 116 7 mg kg -1 with 3.1 and 6.2 Mg ha -1 biochar application, respectively) compared to 71 13 mg kg -1 without biochar application, thus promoting Ca uptake and total plant biomass in upland rice. Moreover, the higher rate of eucalyptus biochar improved CEC, organic matter, available P, and exchangeable K at succeeding sugarcane harvest. Additionally, 6.2 Mg ha -1 biochar significantly increased sugarcane yield (41%) and N uptake (70%), thus enhancing N use efficiency (118%) by higher P (96%) and K (128%) uptake, although the sugar content was not increased. Hence, the application rate of 6.2 Mg ha -1 eucalyptus biochar could become a potential practice to enhance not only the nutrient status of crops and soils, but also crop productivity within an upland rice-sugarcane rotation system established on tropical low fertility sandy soils.

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“…A similar result was revealed by Li et al. () for vegetable crops. Joint application of mineral N, P, and K can have positive interactions with crop yield ( Bandel and Griffith , ).…”

Section: Discussionsupporting

confidence: 90%

Eucalyptus biochar application enhances Ca uptake of upland rice, soil available P, exchangeable K, yield, and N use efficiency of sugarcane in a crop rotation system

Butphu

Rasche

Cadisch

et al. 2019

J. Plant Nutr. Soil Sci.

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“…The application of biochar is usually intended to increase crop yields, and evidence suggests that this may be successful (Schulz et al, 2013;Li et al, 2017;Jeffery et al, 2017). Due to its liming effect, biochar helps to improve the supply of essential macro-and micronutrients for plant growth (Chan and Xu, 2009;Major et al, 2010).…”

Section: Biochar Effects On Vegetable Yield and Gnri Across Differentmentioning

confidence: 99%

“…Annual N fertilizer inputs for intensively managed vegetable cultivation are 3-6 times higher than in cereal grain cultivation in China (Ju et al, 2006;Diao et al, 2013;Wang et al, 2015a). As a result, great concern exists about excess N fertilizer application and low N use efficiency in intensive vegetable fields in China (Deng et al, 2013;Diao et al, 2013;Li et al, 2017). Meanwhile, intensive vegetable agriculture is considered to be an important source of N 2 O (Xiong et al, 2006;Jia et al, 2012;Li et al, 2015b;Zhang et al, 2015) and NO production ).…”

Section: Introductionmentioning

confidence: 99%

“…The amendment of agricultural ecosystems with biochar has been proposed as an effective countermeasure for climate change (Smith, 2016). These additions have been suggested to increase soil carbon storage (Mukherjee and Zimmerman, 2013;Stavi and Lal, 2013), decrease greenhouse gas emissions (Li et al, 2017), and improve soil fertility and crop production (Major et al, 2010;Liu et al, 2013;Jeffery et al, 2017). However, some recent studies have reported no difference or even an increase in soil N 2 O emissions induced by biochar application for various soils (Saarnio et al, 2013;Wang et al, 2015a).…”

Section: Introductionmentioning

confidence: 99%

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Biochar reduces yield-scaled emissions of reactive nitrogen gases from vegetable soils across China

Fan

Chen

et al. 2017

Biogeosciences

Self Cite

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Abstract. Biochar amendment to soil has been proposed as a strategy for sequestering carbon, mitigating climate change and enhancing crop productivity. However, few studies have compared the general effect of different feedstock-derived biochars on the various gaseous reactive nitrogen emissions (GNrEs) of N 2 O, NO and NH 3 simultaneously across the typical vegetable soils in China. A greenhouse pot experiment with five consecutive vegetable crops was conducted to investigate the effects of two contrasting biochars, namely wheat straw biochar (B w ) and swine manure biochar (B m ) on GNrEs, vegetable yield and gaseous reactive nitrogen intensity (GNrI) in four typical soils which are representative of the intensive vegetable cropping systems across mainland China: an Acrisol from Hunan Province, an Anthrosol from Shanxi Province, a Cambisol from Shandong Province and a Phaeozem from Heilongjiang Province. Results showed that remarkable GNrE mitigation induced by biochar occurred in Anthrosol and Phaeozem, whereas enhancement of yield occurred in Cambisol and Phaeozem. Additionally, both biochars decreased GNrI through reducing N 2 O and NO emissions by 36.4-59.1 and 37.0-49.5 % for B w (except for Cambisol), respectively, and by improving yield by 13.5-30.5 % for B m (except for Acrisol and Anthrosol). Biochar amendments generally stimulated the NH 3 emissions with greater enhancement from B m than B w . We can infer that the biochar's effects on the GNrEs and vegetable yield strongly depend on the attributes of the soil and biochar. Therefore, in order to achieve the maximum benefits under intensive greenhouse vegetable agriculture, both soil type and biochar characteristics should be seriously considered before conducting large-scale biochar applications.

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“…The major factors controlling N2O emission from agricultural soil are soil N availability, dissolved organic C (DOC), temperature, moisture and pH. Total cumulative N2O emission was enhanced by N application 12) and high temperature 13)14) . Increasing temperature could enhance N2O emission from soils by enhancing nitrification and denitrification rates.…”

Section: Introductionmentioning

confidence: 99%

Nitrous Oxide and Carbon Dioxide Emissions From Agricultural Soil Amended With Different Types of Biochar at Three Temperatures

Hoang

Maeda

2017

JESSS

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A laboratory experimental study was conducted to investigate the effects of different coffee waste biochar materials at three temperatures on nitrous oxide (N2O) and carbon dioxide (CO2) emissions from agricultural soil in Central Vietnam. Soil amended with 2% normal biochar, 2% functional biochar (with a high NO3-N adsorption capacity of 20 g N kg -1 ) or no addition was adjusted at 60% water holding capacity, conditioned with 100 mg N-NO3 kg -1 dried-soil and aerobically incubated at 25 o C, 30 o C or 35 o C for 21 days. N2O and CO2 emissions were measured on days 1, 3, 5, 7, 14 and 21. Results showed that the addition of normal biochar caused more CO2 emission but less N2O emission compared to the functional biochar application. At 25 o C, biochar amendment had a neutral or positive effect on N2O and CO2 emissions. At 35C, biochar amendment reduced N2O and CO2 emissions compared to the control. However, there was little difference in N2O and CO2 emissions among biochar treatments. In addition, with increasing temperature, a positive correlation between temperature and N2O and CO2 emissions with the non-biochar amendment and a negative correlation between temperature and N2O with the biochar treatments were observed. This is because temperature probably affects the rate of microbial processes mediating respiration and denitrification and the soil-biochar mixture's mobilization of N availability.

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Dynamic responses of nitrous oxide emission and nitrogen use efficiency to nitrogen and biochar amendment in an intensified vegetable field in southeastern China

Cited by 90 publications

References 35 publications

Eucalyptus biochar application enhances Ca uptake of upland rice, soil available P, exchangeable K, yield, and N use efficiency of sugarcane in a crop rotation system

Eucalyptus biochar application enhances Ca uptake of upland rice, soil available P, exchangeable K, yield, and N use efficiency of sugarcane in a crop rotation system

Biochar reduces yield-scaled emissions of reactive nitrogen gases from vegetable soils across China

Nitrous Oxide and Carbon Dioxide Emissions From Agricultural Soil Amended With Different Types of Biochar at Three Temperatures

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