Author/Authors :
haider, feroza sardar bhadur khan women’s university - department of plant sciences, Quetta, pakistan , haider, feroza university of balochistan - department of botany, quetta, pakistan , gul, shamim mcgill university, ste-anne-de-bellevue, macdonald campus - department of natural resource sciences, quebec, canada , gul, shamim university of balochistan - department of botany, Quetta, Pakistan , hussain, javaid environmental protection agency, government of balochistan, Quetta, Pakistan , ghori, sadaf asalam sardar bahadur khan womenes university - department of environmental science, Quetta, Pakistan , shahwani, muhammad naeem balochistan university of information technology, engineering and management sciences (buitems) - faculty of life sciences, Quetta, Pakistan , murad, muhammad balochistan university of information technology, engineering and management sciences (buitems) - faculty of life sciences, Quetta, Pakistan , kakar, abdul manan university of balochistan - institute of biochemistry, Quetta, Pakistan
Abstract :
The present study investigated the influence of wood-derived and cow manure-derived biochars on the crop growth performance and accumulation of chromium, iron, manganese and zinc in the edible parts (roots) of Brassica rapa (turnip) under groundwater and wastewater irrigation. Biochars were applied at 0.25, 0.5 and 1 kg m^-2 to soil. Amendment of biochar increased significantly the aboveground plant biomass by 28% - 34.3% under groundwater and 18.3% - 30.4% under wastewater irrigation. Dry weight of root biomass increased by 16.1% - 20.2% under groundwater and by 21% - 31.2% under wastewater irrigation in response to biochar amendment. Wood-derived biochar at higher application rates and manure-derived biochar at all application rates showed significant influence on crop growth performance of B. rapa. Wood-derived biochar at all application rates and manure-derived biochar at higher application rate reduced significantly the concentration of iron and zinc in roots of B. rapa.
Keywords :
Biochar , Wastewater irrigation , Heavy metal accumulation , Yield , Brassica rapa
