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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Muhammad Siddique Lashari1, 2, Bakht-un-Nisa Mangan2, Inayatullah Rajpar2, Haishi Ji1, Genxing Pan1, Ayaz Ahmed Lashari2 and Jiangkuan Nan1
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DOI:10.17265/2161-6264/2018.04.002
Affiliation(s)
1. Institute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
2. Faculty of Crop Production, Department of Soil Science and Agronomy, Sindh Agriculture University, Tandojam 70060, Sindh, Pakistan
ABSTRACT
Soil salinity has been considered a brutal environmental factor for
decreasing crop yield due to the accumulation of excessive sodium salts in soil
under arid and semi-arid region of the world. This study tries to address the potential use of
biochar. An organic matter rich material, used to reclaim salt-stressed soil
in order to enhance crop production in dry croplands as well as to increase soil
organic carbon (SOC) and to improve soil
fertility. In this regard, a
field experiment for two years was conducted in a moderately salt-stressed soil of
Central China with wheat-maize cropping system. The soil was amended with biochar composted with
poultry manure (BPC) at 12 t/ha with diluted pyroligneous solution (PS) at 0.15 t/ha a week before sowing of crop.
Results showed significant improvement in soil physical properties, soil nutrient content with reduction of sodium salts
and soil pH by amendment of BPC-PS1 and BPC-PS2 over the
experimental control salt-stressed cropland. Furthermore, wheat
and maize grain yield, nitrogen, phosphorous potassium and K/Na ratio increased
while sodium decreased with the application of BPC-PS amendment in wheat and maize grain.
This study concluded that the biochar amendment in conjunction with PS greatly improved SOC storage,
crop nutrient uptake and soil fertility. Thus, waste treatment of crop straw
and poultry manure compost as biochar could be combined to alleviate salt stress
and improve crop production in the vast area of arid and semi-arid regions of
the world.
KEYWORDS
Plant nutrient, pyroligneous solution, salt stress, wheat and maize grain yield, poultry manure compost.
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