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Authors Abideen, Z; Koyro, HW; Huchzermeyer, B; Gul, B; Khan, MA
Author Full Name Abideen, Zainul; Koyro, Hans-Werner; Huchzermeyer, Bernhard; Gul, Bilquees; Khan, M. Ajmal
Title Impact of a biochar or a biochar-compost mixture on water relation, nutrient uptake and photosynthesis of Phragmites karka
Source PEDOSPHERE
Language English
Document Type Article
Author Keywords bio-energy crop; chlorophyll fluorescence; degraded soil; plant eco-physiology; plant growth; photochemical efficiency; water status
Keywords Plus ELECTRON-TRANSPORT; PHOTOSYSTEM-II; TRADE-OFFS; SOIL; GROWTH; SALINITY; YIELD; DROUGHT; PLANTS; PRODUCTIVITY
Abstract Soil water and nutrient status are both of major importance for plant appearance and growth performance. The objective of this study was to understand the effect of biochar (1.5%) and a biochar-compost mixture (1.5% biochar 1.5% compost) on the performance of Phragmites karka plants grown on a synthetic nutrient-poor sandy clay soil (50% sand, 30% clay, and 20% gravel). Indicators of plant performance, such as growth, lignocellulosic biomass, water status (leaf water potential, osmotic potential, and turgor potential), mineral nutrition status, leaf gas exchange, and chlorophyll fluorescence, and soil respiration (carbon dioxide (CO2) flux) were assessed under greenhouse conditions. Biochar-treated plants had higher growth rates and lignocellulosic biomass production than control plants with no biochar and no compost. There was also a significant increase in soil respiration in the treatments with biochar, which stimulated microbial interactions. The increase in soil water-holding capacity after biochar amendment caused significant improvements in plant water status and plant ion (K+, Mg2+, and Ca2+) contents, leading to an increase in net photosynthesis and a higher energy-use efficiency of photosystem II. Biochar-treated plants had lower oxidative stress, increased water-use efficiency, and decreased soil respiration, and the biochar-compost mixture resulted in even greater improvements in growth, leaf turgor potential, photosynthesis, nutrient content, and soil gas exchange. Our results suggest that biochar and compost promote plant growth with respect to nutrient uptake, water balance, and photosynthetic system efficiency. In summary, both the soil amendments studied could increase opportunities for P. karka to sequester CO2 and produce more fodder bio-active compounds and biomass for bio-energy on nutrient-poor degraded soils.
Author Address [Abideen, Zainul; Gul, Bilquees; Khan, M. Ajmal] Univ Karachi, Inst Sustainable Halophyte Utilizat, Karachi 75270, Pakistan; [Abideen, Zainul; Koyro, Hans-Werner] Justus Liebig Univ Giessen, Inst Plant Ecol, D-35392 Giessen, Germany; [Abideen, Zainul; Huchzermeyer, Bernhard] Gottfried Wilhelm Leibniz Univ, Inst Bot, D-30419 Hannover, Germany
Reprint Address Abideen, Z (corresponding author), Univ Karachi, Inst Sustainable Halophyte Utilizat, Karachi 75270, Pakistan.; Abideen, Z (corresponding author), Justus Liebig Univ Giessen, Inst Plant Ecol, D-35392 Giessen, Germany.; Abideen, Z (corresponding author), Gottfried Wilhelm Leibniz Univ, Inst Bot, D-30419 Hannover, Germany.
E-mail Address zuabideen@uok.edu.pk
ResearcherID Number Ul Abideen, Zain/H-2006-2017
ORCID Number Ul Abideen, Zain/0000-0002-8941-3615
Funding Agency and Grant Number Pakistan and German Collaborative Project
Funding Text This study was conducted under the auspices of the Pakistan and German Collaborative Project (No. 1-308/ILPU/HEC/2009)
Times Cited 16
Total Times Cited Count (WoS, BCI, and CSCD) 16
Publisher SCIENCE PRESS
Publisher City BEIJING
Publisher Address 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
ISSN 1002-0160
29-Character Source Abbreviation PEDOSPHERE
ISO Source Abbreviation Pedosphere
Publication Date AUG
Year Published 2020
Volume 30
Issue 4
Beginning Page 466
Ending Page 477
Digital Object Identifier (DOI) 10.1016/S1002-0160(17)60362-X
Page Count 12
Web of Science Category Soil Science
Subject Category Agriculture
Document Delivery Number LN3BI
Unique Article Identifier WOS:000532816900004
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