Evaluation Of Growth And Yield Responses Of Groundnut Varieties (Arachis Hypogaea L) To Poultry Manure And Palm Bunch Refuse Ash Fertilizers In The Humid Tropics Of Umudike, Southeastern Nigeria:- Nkwoma, Obasi O
ABSTRACT
An experiment on the effect ofpoultry manure and
palm bunch ash levels on growth and yield of groundnut (Arachis hypogaea L)
varieties in the humid tropics ofUmudike, Southeastern, Nigeria, was conducted
at the research farm ofMichael Okpara University ofAgriculture, Umudike, Abia
State. The research was a factorial laid out in a Randomized Complete Block
Design (RCBD), with three replications. The treatments comprised Factor A; oil
palm bunch refuse ash (OPBA) levels of 0,10,15 and 20 t ha’1; factor B; poultry
manure (PM) levels of 0, 10 and 15 t ha’1 while factors C; comprised improved
groundnut varieties (SAMMNUT 21) and (SAMMNUT 24). Result showed that number
ofleaves per plant increased at 4 and 8 WAP but declined at 12 WAP due to
senescence. Number of branches per plant increased at 4, 8 and 12WAP, while
shoot dry weight increased at 4 and 8 WAP but declined at 12WAP due to
senescence. Dry matter contents were high at 12WAP and low at 4 and 8WAP due to
sink-source relationship of photoassimilate as crop developed in age. The
fertilizer levels of PM 15 + PBA 20 t ha’1 and SAMMNUT 24 variety produced
highest growth parameters compared with the control (PM 0 + PBRA 0 t ha’1) and
SAMMNUT 21. Higher number of pods per plant, number ofseeds per plant, weight
ofpods per plant, weight ofseed per plant, 100-seed weight, harvest index,
shelling percentage, pod yield and seed yield were obtained from PM 15 + PBA 20
t ha'1 and SAMMNUT 24 variety. Consequently, level of 15 t ha’1 of poultry
manure and 20t ha’1 of palm bunch refuse ash manure and SAMMNUT 24 variety
ofgroundnut are recommended for groundnut production in Umudike, Southeathem
Nigeria. Correlation matrix for 2020 cropping season, showed that all growth
and yield parameters were highly significant (P<0.01) and positively
correlated with each other. In 2020 cropping season, seed yield (r= - 0.033),
and pod yield (r= - 0.166) were significant (P<0.05), but negatively
correlated with shoot fresh weight.
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NKWOMA (2026). Evaluation Of Growth And Yield Responses Of Groundnut Varieties (Arachis Hypogaea L) To Poultry Manure And Palm Bunch Refuse Ash Fertilizers In The Humid Tropics Of Umudike, Southeastern Nigeria:- Nkwoma, Obasi O . Mouau.afribary.org: Retrieved Feb 10, 2026, from https://repository.mouau.edu.ng/work/view/evaluation-of-growth-and-yield-responses-of-groundnut-varieties-arachis-hypogaea-l-to-poultry-manure-and-palm-bunch-refuse-ash-fertilizers-in-the-humid-tropics-of-umudike-southeastern-nigeria-nkwoma-obasi-o-7-2
NKWOMA. "Evaluation Of Growth And Yield Responses Of Groundnut Varieties (Arachis Hypogaea L) To Poultry Manure And Palm Bunch Refuse Ash Fertilizers In The Humid Tropics Of Umudike, Southeastern Nigeria:- Nkwoma, Obasi O " Mouau.afribary.org. Mouau.afribary.org, 10 Feb. 2026, https://repository.mouau.edu.ng/work/view/evaluation-of-growth-and-yield-responses-of-groundnut-varieties-arachis-hypogaea-l-to-poultry-manure-and-palm-bunch-refuse-ash-fertilizers-in-the-humid-tropics-of-umudike-southeastern-nigeria-nkwoma-obasi-o-7-2. Accessed 10 Feb. 2026.
NKWOMA. "Evaluation Of Growth And Yield Responses Of Groundnut Varieties (Arachis Hypogaea L) To Poultry Manure And Palm Bunch Refuse Ash Fertilizers In The Humid Tropics Of Umudike, Southeastern Nigeria:- Nkwoma, Obasi O ". Mouau.afribary.org, Mouau.afribary.org, 10 Feb. 2026. Web. 10 Feb. 2026. < https://repository.mouau.edu.ng/work/view/evaluation-of-growth-and-yield-responses-of-groundnut-varieties-arachis-hypogaea-l-to-poultry-manure-and-palm-bunch-refuse-ash-fertilizers-in-the-humid-tropics-of-umudike-southeastern-nigeria-nkwoma-obasi-o-7-2 >.
NKWOMA. "Evaluation Of Growth And Yield Responses Of Groundnut Varieties (Arachis Hypogaea L) To Poultry Manure And Palm Bunch Refuse Ash Fertilizers In The Humid Tropics Of Umudike, Southeastern Nigeria:- Nkwoma, Obasi O " Mouau.afribary.org (2026). Accessed 10 Feb. 2026. https://repository.mouau.edu.ng/work/view/evaluation-of-growth-and-yield-responses-of-groundnut-varieties-arachis-hypogaea-l-to-poultry-manure-and-palm-bunch-refuse-ash-fertilizers-in-the-humid-tropics-of-umudike-southeastern-nigeria-nkwoma-obasi-o-7-2