This study highlights about role of poultry manure slurry
from biogas in growing barley. Manure slurry, a by-product of biogas production
generated from anaerobic digestion of
animal waste and crop residues, is often considered a substitute to reduce mineral
fertilizer input. Being a cheap source of organic matter and plant nutrients,
its application may improve soil fertility and yield quality and quantity. The
accumulation of raw poultry residues in enormous quantities causes the release
of odors and the leakage of toxic elements into the surface and groundwater,
which negatively affects human health and the environment. So the bioreactor
named the fixed-dome model as an anaerobic digester was designed and installed
in the poultry field at the agricultural advisory office of college of
agriculture at the University of Basra in Karmat-Ali, Iraq. Anaerobic organic
fertilizer produced from anaerobic digestion pathway when raw poultry manure
was fermented an aerobically for 56 days in the designed bioreactor, to study
the use efficiency for anaerobic produced organic fertilizer and raw poultry
manure when added at 150Kg N ha-1 at 0, 25, 50, 75 and 100 % of the recommended
dose which was equal to a chemical recommendation for nitrogen as urea
fertilizer while P and K were applied in a field experiment as traditional
fertilizers as superphosphate and potassium sulfate respectively) to grow
barley plants Hordeum vulgare L. Results showed that doses at 100% of anaerobic
organic fertilizer were produced in the bioreactor with a significant increase
in plant growth parameters as plant height, dry weight of shoot and amounts and
their uptake of N and P elements in plants within 60 days of planting as
compared to the rest treatments, so the biogas technology for the production of
anaerobic organic fertilizer can help partly or mainly to reduce amounts of
traditional doses of fertilizer. Anaerobic digestion has a major beneficial
function in enhancing the availability and quality of nutrients like N and P in
soil and promoting plant growth. However, it can be mostly or partially
replaced by chemical fertilizers that are added to the soil, such as urea and
superphosphate.
Author(s) Details:
Zainab K. Hasan,
Department of Soil Science and Water Resources, College of Agriculture,
University of Basrah, Iraq.
Ali M. Jaber,
Department
of Soil Science and Water Resources, College of Agriculture, University of
Basrah, Iraq.
Please see the link here: https://stm.bookpi.org/RACAS-V4/article/view/13319
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