Soil respiration, pH and EC as influenced by biochar

Shah, Tasneem; Sara, Sara; Shah, Zahir

doi:10.25252/se/17/51184

Cited by 31 publications

(20 citation statements)

References 40 publications

(45 reference statements)

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“…The EC e decreased by 18%, 20%, and 19% for T1, T3, and T5, respectively. These results were opposite to those data obtained after rice husk-derived biochar application on an alkaline soil at Karaj, Iran (Abrishamkesh et al, 2015) and during lab incubation experiment as biochar derived from branches and trunks of Acacia applied to calcareous soil, where soil EC was increased (Shah et al, 2017).…”

Section: Effect Of Treatments On Soil Ph and Ec Econtrasting

confidence: 97%

Behavior of Biochar on Alkaline Soil and its Impact on Tomato Growth and Productivity

Hammam

2019

Journal of Soil Sciences and Agricultural Engineering

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Biochar is projected as a soil conditioner to amend soil physical and chemical properties. However, behavior of biochar in alkaline soils under arid and semi-arid conditions in Egypt not much investigated. In this study, field experiments were carried out under greenhouse conditions to explore the effect of applying biochar and sugarcane bagasse with two different ways and at three different rates (10, 20 and 30 ton ha-1) on some properties of alkaline clay loam soil and tomato growth and yield. The experiments were conducted for two successive seasons of 2015 and 2016. Mixing biochar with top surface soil at rates of 20 and 30 ton ha-1 reduced particle and bulk density and increased the porosity and water holding capacity. The results indicated that biochar application did not affect soil pH, however, decreased EC e and increased soil organic carbon, exchangeable cations and cation exchange capacity. Addition of biochar by mixing through the top-twenty-centimeters of soil surface was more effective than applying as a thin layer under the toptwenty-centimeters of soil surface on improving tomato growth. Application of organic residues such as sugarcane bagasse caused limited positive effects on soil physical-chemical properties. In comparison, this shows the benefit effect of pyrolysis for organic residues on soil properties. Tomato growth and yield only was affected significantly (P < 0.05) by biochar application at a rate of 20 ton ha-1 .

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Section: Effect Of Treatments On Soil Ph and Ec Econtrasting

confidence: 97%

Behavior of Biochar on Alkaline Soil and its Impact on Tomato Growth and Productivity

Hammam

2019

Journal of Soil Sciences and Agricultural Engineering

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“…This could be attributed to release of weakly bound nutrients of biochar into the soil solution which became available for plant uptake thus leading to the decline in EC towards the end of the experiment (Chintala et al, 2013). Similar studies have observed an increase in soil EC with biochar application at the onset of the experiment (Chintala et al, 2013;Shah et al, 2017). Studies by Abu-Zahra and Tahboub (2008), however, reported no significant changes in soil pH and soluble salts concentrations (EC) at the end of the experiment and attributed this lack of changes in soil pH to the high buffering capacity of the soil based on its high carbonate content (22-28%).…”

Section: Effect Of Biochar and Manure On Ph And Electrical Conductivisupporting

confidence: 58%

Effects of biochar and manure on soil properties and growth of Casuarina equisetifolia seedlings at the coastal region of Kenya

Mwadalu¹,

Mochoge²,

Danga³

2020

Sci. Res. Essays

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This study investigated the effects of biochar and manure applied singly or together on soil biochemical properties, Casuarina equisetifolia seedling growth and seedling quality. Therefore, a nursery experiment consisting of Prosopis juliflora biochar and cattle manure treatments at 0% (control), 10% biochar, 20% biochar, 10% manure, 10% biochar + 10% manure, and 20% biochar + 10% manure was conducted. Generally, biochar containing treatments recorded higher P concentrations; where the combination of 20% biochar and 10% manure gave the highest phosphorus concentration, which was 137.3% above the control. Nitrate concentrations were higher in manure treatments than the control by 122.9%. As a result of C. equisetifolia's ability to fix nitrogen, nitrates concentration in the control increased from 0.016 ppm at the onset of the experiment to 2.18 ppm at the end the experiment. There was also a general increase in pH with biochar and manure application. Seedlings treated with 10% manure recorded the highest collar diameter and height which was 36.4 and 27.4% above the control respectively while treatments with biochar alone recorded the lowest seedling collar diameters. Seedling quality as observed using the shoot/root ratio showed that sole biochar treatments had the recommended range of <3:1. These results suggest that the use of biochar and manure enhances nitrogen and phosphorus availability which are crucial for production of seedlings that grow significantly faster than seedlings raised from forest soil only.

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“…Although biochar application to soils has a significant influence on soil respiration and emission of other gases (N 2 O and CH 4 ), there have been no consistent results regarding the response of such processes to biochar application. Biochar amendments resulted in enhanced evolution of CO 2 in some studies as of Kammann et al (2012), Zheng et al (2012), Shah et al (2017) and others. The results of Rondon et al (2005) and several others (Liu et al, 2011;Dempster et al, 2012;Fabbri et al, 2013;Malghani et al, 2013) revealed that biochar amendments decreased CO 2 emission from soil.…”

Section: Tasneem Shah* Muhammad Tariq and Dost Muhammadmentioning

confidence: 94%

Biochar Application Improves Soil Respiration and Nitrogen Mineralization in Alkaline Calcareous Soil under Two Cropping Systems

Shah¹,

Tariq²,

Muhammad³

2021

SJA

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Soil respiration, pH and EC as influenced by biochar

Abstract: Biochar application to agricultural land is gaining significance as a strategy for C sequestration and improving

Cited by 31 publications

References 40 publications

Behavior of Biochar on Alkaline Soil and its Impact on Tomato Growth and Productivity

Behavior of Biochar on Alkaline Soil and its Impact on Tomato Growth and Productivity

Effects of biochar and manure on soil properties and growth of Casuarina equisetifolia seedlings at the coastal region of Kenya

Biochar Application Improves Soil Respiration and Nitrogen Mineralization in Alkaline Calcareous Soil under Two Cropping Systems

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