Effects of biochar application on nitrogen leaching, ammonia volatilization and nitrogen use efficiency in two distinct soils

Liu, Zunqi; He, Tianyi; Cao, Ting; Yang, Tiexing; Meng, Jun; Chen, Wenfu

doi:10.4067/s0718-95162017005000037

Cited by 49 publications

(42 citation statements)

References 26 publications

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“…Decreased N values in the BCH amended treatments with the B inoculum could have been related to N immobilization by BCH and this hypothesis might explain the reduced plant growth in B amended treatments of both growing cycles. Results are in accordance with the experiments on corn stover and hardwood BCH with silt loam soil and corn [39], maize stover BCH and ryegrass with loamy/sandy soil [40]. Otherwise, N content reduction in B treated plants with the reduced biomass might be explained by the B inoculum lower N 2 -fixators activity with its BCH combination comparing to the Novaferm one, with perhaps inefficient microbial population establishment of the added inoculum as suggested in studies of Dempster et al [41] where jarrah wood BCH supressed microbial development.…”

Section: Influence Of the Bch Mixed With Bacterial Inoculumssupporting

confidence: 90%

Plant-soil nitrogen, carbon and phosphorus content after the addition of biochar, bacterial inoculums and N fertilizer

Mikajlo¹,

Pourrut²,

Louvel³

et al. 2020

Preprint

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The use of biochar in combination with mineral or biological amendments in order to improve its influence on soil-plant properties has received growing attention. The changes of N, C and P content in Lactuca sativa var. capitata aboveground plant biomass and soil after the addition of beech wood biochar combined with the addition of bacterial inoculums (Bacofil and Novarefm) and N fertilizer have been studied using spectrophotometry methods. Pots were filled with the arable soil from the plots in protection zone of water sources (Březová nad Svitavou, South Moravia, Czech Republic). Biochar with inoculums decreased plant growth in the first yield of Novaferm treatment and in both yields of Bactofil treatment. Increased plant biomass growth was observed with Novaferm addition in the second yield. Total N increase has been obtained in the plant aboveground biomass and soil of the treatments amended with inoculums and nitrogen fertilizer. The decrease of P content has been observed in plant aboveground biomass in the biochar amended samples.

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Section: Influence Of the Bch Mixed With Bacterial Inoculumssupporting

confidence: 90%

Plant-soil nitrogen, carbon and phosphorus content after the addition of biochar, bacterial inoculums and N fertilizer

Mikajlo¹,

Pourrut²,

Louvel³

et al. 2020

Preprint

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“…The effect of high‐C‐content amendments on NO 3 –N leaching depends on complex physical, chemical, and biological processes. It has been suggested that leaching of soil NO 3 –N depends on the ability of biochar to retain NO 3 –N and NH 4 –N or on the inhibition of nitrification by clay particles (Clough, Condron, Kammann, & Müller, 2013; Liu et al., 2017). Some biochar studies have found decreased NO 3 –N leaching depending on fertilizer type, soil type, and leaching conditions, but other studies showed inconsistent effects of biochar on leaching (Fidel, Laird, & Spokas, 2018; Haider, Steffens, Moser, Müller, & Kammann, 2017; Sika & Hardie, 2014).…”

Section: Discussionmentioning

confidence: 99%

Optimum rates of surface‐applied coal char decreased soil ammonia volatilization loss

et al. 2020

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Fertilizer N losses from agricultural systems have economic and environmental implications. Soil amendment with high C materials, such as coal char, may mitigate N losses. Char, a coal combustion residue, obtained from a sugar factory in Scottsbluff, NE, contained 29% C by weight. A 30‐d laboratory study was conducted to evaluate the effects of char addition on N losses via nitrous oxide (N2O) emission, ammonia (NH3) volatilization, and nitrate (NO3–N) leaching from fertilized loam and sandy loam soils. Char was applied at five different rates (0, 6.7, 10.1, 13.4, and 26.8 Mg C ha−1; char measured in C equivalent) to soils fertilized with urea ammonium nitrate (UAN) at 200 kg N ha−1. In addition, there were two negative‐UAN control treatments: no char (no UAN) and char at 26.8 Mg C ha−1 (no UAN). Treatment applied at 6.7 and 10.1 Mg C ha−1 in fertilized sandy loam reduced NH3 volatilization by 26–37% and at 6.7, 10.1, and 13.4 Mg C ha−1 in fertilized loam soils by 24% compared with no char application. Nitrous oxide emissions and NO3–N leaching losses were greater in fertilized compared with unfertilized soil, but there was no effect of char amendment on these losses. Because NO3–N leaching loss was greater in sandy loam than in loam, soil residual N was twofold higher in loam than in sandy loam. This study suggests that adding coal char at optimal rates may reduce agricultural reactive N to the atmosphere by decreasing NH3 volatilization from fertilized soils.

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“…Low soil fertility necessitates fertilizer applications which increase cost of crop production and can result in environmental issues such as algal bloom and contamination of water bodies [1]. Biochar reportedly has good capacity to retain nutrients and improve their phyto-availability due to its numerous pores and large surface area and charge [2,3]. Recent research has shown that additions of biochar reduced nutrient losses from agricultural lands [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…The nutrient regulating capacity of biochar could be attributed to its large surface area, porosity, surface charge, organic coating, and other factors, such as pH and ionic competition [2,3,21]. For example, NH 4 -N adsorption is due to cation exchange of the surface functional (e.g., phenolic and carboxylic) groups of biochar produced at relatively low (300-400 • C) temperature [22] and physical entrapment in biochars pores [23].…”

Section: Introductionmentioning

confidence: 99%

Biochars Improve Nutrient Phyto-Availability of Hawai’i’s Highly Weathered Soils

et al. 2018

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Highly weathered soils in Hawai’i are low in fertility, negatively affecting plant growth. The potential of biochar for improving soil nutrient availability to crops is promising, and prompts this study. Two biochars at 2% (w/w) made of lac tree (Schleichera oleosa (Lour.) Oken) wood and mixed wood (scrapped wood and tree trimmings) with and without vermicompost or thermocompost at 2% (w/w) were added to an Ultisol (Ustic Kanhaplohumult, Leilehua series) and an Oxisol (Rhodic haplustox, Wahiawa series) of Hawai’i. In each soil two additional treatments—lime + compost and un-amended soil—served as the control. Chinese cabbage (Brassica rapa cv. Bonsai) was used as the test plant in two greenhouse plantings, which had a factorial completely randomized design with three replicates per treatment. The results indicated that soil acidity, nutrient in the soils, plant growth and nutrient uptake were improved by the amendments compared to the control. The combined additions of biochar and compost significantly increased pH and EC; reduced exchangeable Al; reduced Mn and Fe in the Oxisol; increased P, K, and Ca content of the soils; and increased Ca, Mg and Fe uptake. Exchangeable aluminum in the Ultisol decreased from 2.5 cmol+/kg to nil; Mehlich-3 extractable P, K, Ca, Mg, Fe, and Mn in the Ultisol increased by 1478%, 2257%, 1457%, 258%, 125% and 72%, respectively compared to the un-amended soil, while the same nutrients increased or decreased in the Oxisol by 180%, 59%, 308%, −14%, and −36%, respectively. Shoot and total cabbage fresh and dry matters increased by 94%, 96%, 107%, and 112%, respectively, as compared to the lime plus compost treatment. Cabbage growth in the Ultisol amended with the lac tree wood biochar and vermicompost was almost twice over the lime and vermicompost treatment. Essential nutrients in the plant tissues, except for N and K, were sufficient for the cabbage growth, suggesting increases in nutrients and reduced soil acidity by the additions of biochar combined with compost were the probable cause. It is recommended that locally produced biochars and composts be used to improve plant nutrient availability in the highly weathered soils.

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Effects of biochar application on nitrogen leaching, ammonia volatilization and nitrogen use efficiency in two distinct soils

Cited by 49 publications

References 26 publications

Plant-soil nitrogen, carbon and phosphorus content after the addition of biochar, bacterial inoculums and N fertilizer

Plant-soil nitrogen, carbon and phosphorus content after the addition of biochar, bacterial inoculums and N fertilizer

Optimum rates of surface‐applied coal char decreased soil ammonia volatilization loss

Biochars Improve Nutrient Phyto-Availability of Hawai’i’s Highly Weathered Soils

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