Authors :
Dr. Yusuf Kuchi TABAT; Dr. Jummai Grace TABAT
Volume/Issue :
Volume 9 - 2024, Issue 12 - December
Google Scholar :
https://tinyurl.com/mv7c29jd
Scribd :
https://tinyurl.com/5n95d3bu
DOI :
https://doi.org/10.5281/zenodo.14613835
Abstract :
Field trials were carried out concurrently
during the rainy season of 2024 on the research farms of
the Institute for Agricultural Research, Zaria (11o11ꞌN;
07o38ꞌE 686m above sea level) and Kaduna State College
of Education, Gidan Waya (9o34ꞌN, 8o18ꞌE 740m above
sea level) located in the northern and southern parts of
Kaduna State, which also coincides with the northern
and southern Guinea savanna ecological zones of
Nigeria, respectively. The experiment was carried out to
assess the profitability of upland rice (Oryza sativa L.)
production under different weed management systems,
source and rate of biochar. The treatments consisted of
three different weed management systems [chemical
weed control (Saflufenacil + Dimethenamid-P at 0.5 kg
a.i/ha applied pre- emergence), integrated weed control
(Saflufenacil + Dimethenamid-P at 0.5 kg a.i/ha applied
pre- emergence + one hand weeding at 63 DAS) and
cultural weed control (Hand weeding at 21, 42 and 63
DAS)], three sources of biochar (groundnut shell, maize
cob and wood shavings) and three rates of the biochar (0,
2 and 4 t ha-1). All the treatments were laid out in a
Split-Plot Design and replicated three times. The three
rates of biochar and three different weed management
systems were factorially combined and laid out as the
main plot treatment. The sub-plot treatments consisted
of the three sources of biochar. The results showed that
application of Saflufenacil + Dimethenamid-P at 0.5 kg
a.i/ha + one hand weeding at 63 DAS in combination
with groundnut shell biochar at 2 t ha-1 gave the highest
yield of 3,546 kg/ha and 4,106 kg/ha at Zaria and Gidan
Waya, respectively. This also corresponds to the highest
return on investment of ₦571,900 with a profit of ₦1.82
per every naira invested at Zaria and ₦702,300 with a
profit of ₦2.17 per every naira invested at Gidan Waya.
Therefore this treatment is considered most appropriate
and profitable for upland rice production in Kaduna
State, Nigeria.
References :
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Field trials were carried out concurrently
during the rainy season of 2024 on the research farms of
the Institute for Agricultural Research, Zaria (11o11ꞌN;
07o38ꞌE 686m above sea level) and Kaduna State College
of Education, Gidan Waya (9o34ꞌN, 8o18ꞌE 740m above
sea level) located in the northern and southern parts of
Kaduna State, which also coincides with the northern
and southern Guinea savanna ecological zones of
Nigeria, respectively. The experiment was carried out to
assess the profitability of upland rice (Oryza sativa L.)
production under different weed management systems,
source and rate of biochar. The treatments consisted of
three different weed management systems [chemical
weed control (Saflufenacil + Dimethenamid-P at 0.5 kg
a.i/ha applied pre- emergence), integrated weed control
(Saflufenacil + Dimethenamid-P at 0.5 kg a.i/ha applied
pre- emergence + one hand weeding at 63 DAS) and
cultural weed control (Hand weeding at 21, 42 and 63
DAS)], three sources of biochar (groundnut shell, maize
cob and wood shavings) and three rates of the biochar (0,
2 and 4 t ha-1). All the treatments were laid out in a
Split-Plot Design and replicated three times. The three
rates of biochar and three different weed management
systems were factorially combined and laid out as the
main plot treatment. The sub-plot treatments consisted
of the three sources of biochar. The results showed that
application of Saflufenacil + Dimethenamid-P at 0.5 kg
a.i/ha + one hand weeding at 63 DAS in combination
with groundnut shell biochar at 2 t ha-1 gave the highest
yield of 3,546 kg/ha and 4,106 kg/ha at Zaria and Gidan
Waya, respectively. This also corresponds to the highest
return on investment of ₦571,900 with a profit of ₦1.82
per every naira invested at Zaria and ₦702,300 with a
profit of ₦2.17 per every naira invested at Gidan Waya.
Therefore this treatment is considered most appropriate
and profitable for upland rice production in Kaduna
State, Nigeria.