FIRST YEAR FINAL REPORT ON EVALUATION OF BIOSLURRY AS NUTRIENT SOURCE FOR
SUSTAINABLE AGRICULTURE Submitted to Pakistan Domestic Biogas Programme, Faisalabad
By Dr. Muhammad Javed Akhtar Assistant Professor
INSTITUTE OF SOIL AND ENVIRONMENTAL SCIENCES FACULTY OF AGRICULTURE UNIVERSITY OF AGRICULTURE, FAISALABAD 2011
SUMMARY
1) The maximum plant height 6% increase over control was obtained with the application of 50% of recommended N through chemical fertilizers and the remaining 50% from biogas slurry. It was also observed that the sole application of biogas slurry as N source had negative effect on plant height of wheat.
2) Combined use of biogas slurry and chemical fertilizer significantly increased number of tillers m-2and the highest number of tillers (533) was recorded with the use of 50% N from chemical fertilizer and 50% N from biogas slurry which was 56% more than control and it was statistically non significant where 75% N from chemical fertilizer and 25% N from biogas slurry was applied. The supply of 100% recommended nitrogen from biogas slurry caused 30% decrease in number of tillers per m-2
.
3) The highest 1000 grain weight (49% higher over control) was recorded with the use of 50% N from chemical fertilizer and 50% N from biogas slurry. The sole application of biogas slurry for the supply of 100% of recommended N exhibited a negative effect on 1000 grain weight.
4) Like other growth and yield parameters the maximum grain yield (4,59 t/ha) was also achieved with the application of 50% of recommended N from chemical fertilizer and the remaining 50% N from BGS which produced 68% higher grain yield over control. The sole application of bioslurry as N source again produced a negative effect on grain yield and caused 25% decline over control
source http://rspn.org/our_projects/projects_pdfs/uaf_report_year_1.pdf
SUSTAINABLE AGRICULTURE Submitted to Pakistan Domestic Biogas Programme, Faisalabad
By Dr. Muhammad Javed Akhtar Assistant Professor
INSTITUTE OF SOIL AND ENVIRONMENTAL SCIENCES FACULTY OF AGRICULTURE UNIVERSITY OF AGRICULTURE, FAISALABAD 2011
SUMMARY
1) The maximum plant height 6% increase over control was obtained with the application of 50% of recommended N through chemical fertilizers and the remaining 50% from biogas slurry. It was also observed that the sole application of biogas slurry as N source had negative effect on plant height of wheat.
2) Combined use of biogas slurry and chemical fertilizer significantly increased number of tillers m-2and the highest number of tillers (533) was recorded with the use of 50% N from chemical fertilizer and 50% N from biogas slurry which was 56% more than control and it was statistically non significant where 75% N from chemical fertilizer and 25% N from biogas slurry was applied. The supply of 100% recommended nitrogen from biogas slurry caused 30% decrease in number of tillers per m-2
.
3) The highest 1000 grain weight (49% higher over control) was recorded with the use of 50% N from chemical fertilizer and 50% N from biogas slurry. The sole application of biogas slurry for the supply of 100% of recommended N exhibited a negative effect on 1000 grain weight.
4) Like other growth and yield parameters the maximum grain yield (4,59 t/ha) was also achieved with the application of 50% of recommended N from chemical fertilizer and the remaining 50% N from BGS which produced 68% higher grain yield over control. The sole application of bioslurry as N source again produced a negative effect on grain yield and caused 25% decline over control
source http://rspn.org/our_projects/projects_pdfs/uaf_report_year_1.pdf
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