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Wyszukujesz frazę "Ijoyah, M. O." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Maize-soybean intercropping system: effects on Striga control, grain yields and economic productivity at Tarka, Benue State, Nigeria
Autorzy:
Ijoyah, M.O.
Powiązania:
https://bibliotekanauki.pl/articles/11604.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Striga hermonthica
purple
giant witchweed zob.purple
maize
soybean
intercropping
plant control
grain yield
economic productivity
Benue State
Nigeria
Opis:
On-Farm trials were conducted from July to November during the 2009 and 2010 cropping seasons, at Tarka, Benue State, Nigeria to evaluate the effects of intercropping maize and soybean on striga control, grain yields and economic productivity. The treatments consisted of sole maize, sole soybean and the intercrop of maize and soybean, replicated three times in a randomized complete block design. The results obtained showed that intercropping maize and soybean significantly (P ≤ 0.05) reduced striga shoot count by 55.9 % and 56.1 % respectively, in 2009 and 2010 compared to that produced on pure maize plots. Number of affected maize plants, lodging score of maize and infestation rate were lower for intercropping than for sole maize plots. The severity level was also recorded lower for intercropping compared to that recorded for pure maize stands, where severity level is in the range of high to very high. Though, soybean yield was reduced by intercropping, however, soybean and maize intercropping system increased maize grain yield, total intercrop yield, land equivalent coefficient greater than 0.25, land equivalent ratio values greater than one (LER > 1), higher total intercrop values and monetary equivalent ratio greater than 1.00, indicating yield and economic advantages. The implication of study showed that intercropping maize and soybean can be adopted by farmers as an efficient cropping system strategy to reduce striga infestation, increase maize yield and give greater economic productivity.
Źródło:
International Letters of Natural Sciences; 2014, 14
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
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
Artykuł
Tytuł:
Yield Response of Maize (Zea mays L.) and Sesame (Sesamum indicum L.) Intercrop as Influenced by Planting Densities and Varieties of Sesame at Makurdi, Nigeria
Autorzy:
Ijoyah, M. O.
Anyogo, J. O.
Ugese, F. D.
Powiązania:
https://bibliotekanauki.pl/articles/1192075.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
maize
sesame
intercropping
planting densities
varietal trials
Nigeria
Opis:
A field experiment was conducted from July to October, in years 2014 and 2015 at the Research Farm, University of Agriculture, Makurdi, Nigeria, to evaluate the yield response of maize-sesame intercrop as influenced by planting densities of sesame and varieties of sesame, as well as to assess the yield advantages of the intercropping system. The factorial (3 x 3) combinations of the treatments were randomly arranged in a split-plot design, with four replications. The varieties of sesame (Ex Sudan, SN 603 and E-8) into maize constituted the main plots, while the planting densities of sesame (66,666, 88,888 and 133,333 plants ha-1 equivalent) into maize were assigned to the subplots. Results of study showed that intercropping maize with sesame variety ‘Ex Sudan’ produced the highest grain yield for maize and highest seed yield of 0.45 t ha-1 and 0.33 t ha-1 respectively, in years 2014 and 2015 for sesame. Sesame sown into maize at the density of 66,666 plants ha-1 produced the highest maize yield of 3.6 t ha-1 and 3.8 t ha-1 respectively, in years 2014 and 2015 and highest sesame yields in both years. Intercropping sesame variety ‘Ex Sudan’ into maize at the density of 66,666 plants ha-1 also gave the highest total intercrop yields, highest land equivalent coefficient (LEC) values, highest land equivalent ratio (LER) values of 1.83 and 1.80, highest percentage (%) land saved, lowest competitive ratio and lowest aggressivity. The implication of study showed that it is most advantageous having both crops in intercrop when sesame variety ‘Ex Sudan’ was sown into maize at the density of 66,666 plants ha-1. This should therefore be recommended for Makurdi location, Nigeria.
Źródło:
World Scientific News; 2016, 37; 25-49
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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