Md Zahangir Hossain | Univeristy of Newcastle (original) (raw)
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Papers by Md Zahangir Hossain
Advances in Agronomy, 2021
Any management practice that results in greater carbon (C) return to the soil, increases stabiliz... more Any management practice that results in greater carbon (C) return to the soil, increases stabilization of soil C, or reduces C losses may lead to soil organic carbon (SOC) storage in soil. Therefore, SOC dynamics in soil are dictated by a balance between input and output of C in the soil, and C sequestration occurs only when the input exceeds the output. Primarily, greater C input can occur by enhancing biomass production using fertilizers with irrigation, stubble retention, crop rotation, minimum tillage, and by improving soil properties including having the appropriate pH, cation exchange capacity (CEC), and osmotic pressure. Conventional farming with intensive plowing leads to SOC decomposition, whereas conservation farming with no or minimum tillage with stubble retention may retard the decomposition of soil native organic C. Fertilizer addition may influence the decomposition of SOC. The effect of fertilizer on decomposition of soil organic matter (SOM) differs with and without the presence of organic matter as crop residues, labile C, or easily degradable C in soil. This effect of fertilizer is mostly dominated by the presence/addition of organic matter in soil rather crop management or what the pH, CEC, or osmotic pressure are. However, decomposition of crop residues or organic matter depends on their quality (biochemical properties), soil types, soil environment, the microbial community, and nutrient availability. More microbial activity with organic matter decomposition means more production of stabilized C, which is relatively recalcitrant to microbial degradation. Therefore, nutrient addition in soil may be helpful in increasing SOM stock. At least, it can maintain the SOM level if the C (energy source) for microbial growth is external like stubble or added organic matter rather than internal (native) SOM
Journal of Analytical and Applied Pyrolysis, 2021
The use of organic wastes in agriculture plays a great role in recycling essential plant nutrient... more The use of organic wastes in agriculture plays a great role in recycling essential plant nutrients, sustaining soil security as well
as protecting the environment from unwanted hazards. This review article deals with the effect of different kinds of organic
wastes on soil properties and plant growth and yield. Municipal solid waste is mainly used as a source of nitrogen and organic
matter, improving soil properties and microbial activity that are closely related to soil fertility. Biowaste and food waste increase
pH, nitrogen content, cation exchange capacity, water holding capacity, and microbial biomass in soil. Sewage sludge
contains various amounts of organic matter and huge amounts of plant nutrients. Manure is a common waste which improves
soil properties by adding nutrients and increases microbial and enzyme activity in soil. It also reduces toxicity of some heavy
metals. These organic wastes have a great positive impact on soil physical, chemical, and biological properties as well as
stimulate plant growth and thus increase the yield of crops.
Advances in Agronomy, 2021
Any management practice that results in greater carbon (C) return to the soil, increases stabiliz... more Any management practice that results in greater carbon (C) return to the soil, increases stabilization of soil C, or reduces C losses may lead to soil organic carbon (SOC) storage in soil. Therefore, SOC dynamics in soil are dictated by a balance between input and output of C in the soil, and C sequestration occurs only when the input exceeds the output. Primarily, greater C input can occur by enhancing biomass production using fertilizers with irrigation, stubble retention, crop rotation, minimum tillage, and by improving soil properties including having the appropriate pH, cation exchange capacity (CEC), and osmotic pressure. Conventional farming with intensive plowing leads to SOC decomposition, whereas conservation farming with no or minimum tillage with stubble retention may retard the decomposition of soil native organic C. Fertilizer addition may influence the decomposition of SOC. The effect of fertilizer on decomposition of soil organic matter (SOM) differs with and without the presence of organic matter as crop residues, labile C, or easily degradable C in soil. This effect of fertilizer is mostly dominated by the presence/addition of organic matter in soil rather crop management or what the pH, CEC, or osmotic pressure are. However, decomposition of crop residues or organic matter depends on their quality (biochemical properties), soil types, soil environment, the microbial community, and nutrient availability. More microbial activity with organic matter decomposition means more production of stabilized C, which is relatively recalcitrant to microbial degradation. Therefore, nutrient addition in soil may be helpful in increasing SOM stock. At least, it can maintain the SOM level if the C (energy source) for microbial growth is external like stubble or added organic matter rather than internal (native) SOM
Journal of Analytical and Applied Pyrolysis, 2021
The use of organic wastes in agriculture plays a great role in recycling essential plant nutrient... more The use of organic wastes in agriculture plays a great role in recycling essential plant nutrients, sustaining soil security as well
as protecting the environment from unwanted hazards. This review article deals with the effect of different kinds of organic
wastes on soil properties and plant growth and yield. Municipal solid waste is mainly used as a source of nitrogen and organic
matter, improving soil properties and microbial activity that are closely related to soil fertility. Biowaste and food waste increase
pH, nitrogen content, cation exchange capacity, water holding capacity, and microbial biomass in soil. Sewage sludge
contains various amounts of organic matter and huge amounts of plant nutrients. Manure is a common waste which improves
soil properties by adding nutrients and increases microbial and enzyme activity in soil. It also reduces toxicity of some heavy
metals. These organic wastes have a great positive impact on soil physical, chemical, and biological properties as well as
stimulate plant growth and thus increase the yield of crops.