Temat: Guinea savannah - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Field evaluation of two aqueous plant extracts on water melon Citrullus lanatus (Thumb) insect pests in Northern Guinea savannah of Nigeria
Autorzy:: Degri, M.M.
Sharah, H.S.
Powiązania:: https://bibliotekanauki.pl/articles/11351.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: field evaluation
aquatic plant
plant extract
watermelon
Citrullus lanatus
insect
pest
Northern Guinea
savannah
Nigeria
Opis:: Leaf beetles and fruitfly infestation greatly limits water melon (Citrullus lanatus) production throughout the tropics. The efficacy of aqueous plant extracts applied at 5 % w/v concentration of two botanicals (neems seed oil and garlic bulb) and 1.5 melt of one synthetic insecticide (karate 2.5 EC) against their infestation were evaluated. The effects of these treatments including control on the number of the insects, number of leaves, vines, length of vines, number of fruits, fruit weight, fruit damaged and undamaged were assessed during 2012 and 2013 cropping seasons in Lawanti, Gombe state, Northern Guinea Savannah region of Nigeria. Result of the study showed that neem seed oil and garlic bulb treatments at 5 % w/v were effective against the leaf beetles and water melon fruitfly as the synthetic insecticide karate 2.5 EC in managing the water melon insect pests. Karate 2.5 EC significantly reduced the infestation of the insect pests of water melon and increased number of leaves, vines, length of vines, number of fruits, fruit weight and number of undamaged fruits/plot followed closely by neem seed oil (A. indica) and garlic bulb (A. sativum) extracts. Water melon a growth and fruit yields were appreciably improved in these treatment while untreated control water melon crops had more leafs beetles and fruitfly infestations, poor plant growth and lower fruit yields. Both botanicals can thus serve as alternatives to synthetic insecticides for managing water melon leaf beetles and fruitfly attack.
Źródło:: International Letters of Natural Sciences; 2014, 09
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Yield evaluation of three sesame (Sesamum indicum L.) varieties intercropped with maize (Zea mays L.) in a Southern Guinea Savannah location, Nigeria
Autorzy:: Ijoyah, M.O.
Iorlamen, T.
Fanen, F.T.
Powiązania:: https://bibliotekanauki.pl/articles/11759.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: yield evaluation
sesame
Sesamum indicum
plant cultivar
intercropping
maize
Zea mays
Guinea
savannah
location
Nigeria
Africa
Opis:: Field experiments were conducted from July to November during the 2012 and 2013 cropping seasons, at the Research Farm, University of Agriculture, Makurdi, Nigeria, to evaluate the yields of two newly introduced sesame varieties (Ex Sudan and SN 603) against the commonly grown variety “E-8” under intercropping with maize variety „Oba 98‟. The trial area consisted of a total of seven treatments, replicated three times in a randomized complete block design. The results showed that, though maize yield was not significantly (P ≤ 0.05) affected by intercropping with sesame varieties, however, intercropped yield of sesame variety „Ex Sudan‟ was significantly (P ≤ 0.05) greater by 26.8 % and 25.6 % respectively, in years 2012 and 2013, compared to that obtained from intercropped sesame variety „SN 603‟, and by 19.5 % and 20.9 % respectively, in years 2012 and 2013, compared to that produced from intercropped popular sesame variety „E-8‟. Intercropping maize variety „Oba 98‟ with sesame variety „Ex Sudan‟ gave the highest total intercrop yield, greatest biological efficiency with a relative yield total values of 0.87 and 0.91 respectively, in 2012 and 2013. The combination also recorded the highest land equivalent ratio (LER), highest land equivalent coefficient, highest area x time equivalent ratio (ATER), highest total monetary returns (N584,200 and N588,600 respectively, in years 2012 and 2013) and highest monetary equivalent ratio (MER). The implication of study showed that sesame variety „Ex Sudan‟ performed best and could therefore be recommended as a potential replacement for the popular variety „E-8‟ under intercropping with maize variety „Oba 98‟ in Makurdi, Nigeria.
Źródło:: International Letters of Natural Sciences; 2014, 18
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Yield Response of Cassava-Okra Intercrop as Influenced by Population Densities and Time of Introducing Okra in Makurdi, Nigeria
Autorzy:: Ijoyah, M. O.
Usman, A. U.
Odiaka, N. I.
Powiązania:: https://bibliotekanauki.pl/articles/1193962.pdf
Data publikacji:: 2015
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Abelmoschus esculentus
Euphorbiaceae
Guinea savannah
Makurdi
Malvaceae
Manihot esculenta
cassava
intercropping
okra
planting dates
population density
Opis:: A field experiment was conducted from June to March in years 2013/2014 and 2014/2015 at the Research Farm, University of Agriculture, Makurdi, Nigeria, to evaluate the yield response of cassava-okra intercrop as influenced by population densities and time of introducing okra, as well as assessing the yield advantages of the intercropping system. The experiment was a 3 x 3 factorial combination of treatments, fitted in a randomized complete block design, with four replications. The population densities of okra (33,333, 40,000 and 50,000 plants ha-1 equivalent) into cassava constituted the main plots, while the time of introducing okra into cassava (okra sown at the same time with cassava in mid June; okra introduced into cassava in mid July and okra introduced into cassava in mid August) were assigned to the subplots. Results of study showed that sowing okra at the same time as cassava in mid June, at the population density of 33,333 plants ha-1 produced the highest yields of cassava (46.8 t ha-1 and 39.2 t ha-1 respectively in years 2013 and 2014) and okra (7.7 t ha-1 and 7.5 t ha-1 respectively in years 2013 and 2014) in a cassava-okra intercrop. This level of interaction also gave the highest total intercrop yields, highest land equivalent coefficient (LEC) values, highest land equivalent ratio (LER) values of 1.86 and 1.84 and highest percentage (%) land saved (46.2 % and 45.7 %) respectively recorded in years 2013 and 2014. The implication of study showed that it is most advantageous having both crops in intercrop when okra was sown at the same time as cassava in mid June, at the population density of 33,000 plants ha-1. This should therefore be recommended for Makurdi location, Nigeria.
Źródło:: World Scientific News; 2015, 18; 93-114
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Determinants of the neglected and underutilized species’ cultivation by small-scale farmers in Nigerian Guinea Savannah
Determinanty uprawy marginalnych i niedocenianych gatunków roślin przez właścicieli małych gospodarstw rolnych w regionie Nigerian Guinea Savannah
Autorzy:: Animashaun, J.O.
Ibrahim, H.K.
Omotesho, K.F.
Aderinoye-Abdulwahab, S.
Powiązania:: https://bibliotekanauki.pl/articles/44203.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:: neglected and underutilized species
NUS zob.neglected and underutilized species
cashew nut plant
Anacardium occidentale
Moringa oleifera
Jatropha curcas
plant cultivation
small farmer
diversification
Guinea Savannah region
Nigeria
Opis:: There is an increasing consensus that diversifying into the cultivation of ‘Neglected and Underutilized Species’ (NUS), in addition to growing conventional crops, offers a plethora of livelihood-enhancing benefi ts to small-scale agricultural households. Therefore this study examined the factors that influence small-scale farmers’ diversifi cation into the cultivation of the cashew nut plant (Anarcadium occidentale, Moringa oleifera and Jatropha curcas) in the guinea savannah region of Nigeria. We employed farm household-level survey data of the phenomenon in Kwara State. The data were analyzed using the Simson Index of Diversity (SID) and Tobit censored regression. Findings indicate that respondents diversified most into the cultivation of cashews (70.9%), followed by moringa (38.4%), and jatropha (11.3%). The extent of diversifi cation was positively infl uenced by the farm size (p < 0.01), household head’s education level (p < 0.01), membership in a cooperative (p < 0.01), and farm income (p < 0.1). It was negatively infl uenced by the land tenure system practiced (p < 0.05). Findings imply, inter alia, that small-scale farmers may avoid diversifi cation into these crops if they have a limited access to cultivated land. This study therefore advocates ensuring equitable access to farmland through a structural and legislative land tenure reform policy.
Coraz powszechniej uznaje się, że poszerzanie konwencjonalnych upraw o gatunki marginalne i niedoceniane (Neglected and Underutilized Species, NUS) zapewnia małym gospodarstwom rolnym wiele korzyści, uzupełniając źródła utrzymania. W niniejszym artykule przeanalizowano czynniki, które wpływają na poszerzanie upraw przez właścicieli małych gospodarstw rolnych o nanercz zachodni (Anarcadium occidentale), moringę olejodajną (Moringa oleifera) oraz jatrofę przeczyszczającą (Jatropha curcas) w regionie Nigerian Guinea Savannah. Na potrzeby badania wykorzystano dane z ankiety przeprowadzonej w gospodarstwach rolnych stanu Kwara. Dane poddano analizie za pomocą wskaźnika różnorodności Simpsona (Simpson Index of Diversity, SID) oraz modelu tobitowego regresji cenzurowanej. Wyniki wskazują, że respondenci najczęściej poszerzali uprawy o nanercz (70,9%), a dopiero w dalszej kolejności o moringę (38,4%) i jatrofę (11,3%). Na stopień różnorodności upraw pozytywnie wpływały: wielkość gospodarstwa (p < 0,01), wykształcenie głowy rodziny (p < 0,01), członkostwo w spółdzielni (p < 0,01) oraz dochód gospodarstwa (p < 0,1), natomiast negatywny wpływ miał typ własności ziemi (p < 0,05). Wyniki wskazują, że właściciele małych gospodarstw rolnych mogą unikać poszerzania upraw o wymienione gatunki, jeśli mają ograniczony dostęp do uprawianej ziemi. Autorzy opowiadają się za zapewnieniem sprawiedliwego dostępu do ziemi przez przeprowadzenie prawnych oraz strukturalnych reform zasad najmu ziemi na omawianym obszarze.
Źródło:: Journal of Agribusiness and Rural Development; 2016, 42, 4
1899-5241
Pojawia się w:: Journal of Agribusiness and Rural Development
Dostawca treści:: Biblioteka Nauki

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