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    Tytuł:
    Effects of Intra-Row Spacing of Pearl Millet (Pennisetum glaucum (L.) R.Br.) and Cropping Systems on Growth and Yields of Soybean-Pearl Millet Intercrop, in the Southern Guinea Savanna, Nigeria
    Autorzy:
    Ijoyah, Michael Ojore
    Hashim, Ishaya Kunzan
    Idoko, Joseph Adakole
    Powiązania:
    https://bibliotekanauki.pl/articles/1190199.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    spacing
    intercropping
    pearl millet
    soybean
    Nigeria
    Opis:
    Field experiments were separately conducted from June to November, in year 2012 at the Research Farm, University of Agriculture, Makurdi, Nigeria and at a Farm in Ibi, Nigeria, to evaluate the effects of intra-row spacing of pearl millet and cropping systems on growth and yields of soybean-pearl millet intercrop, as well as assessing the yield advantages of the intercropping system. The experiment was a 2 x 4 factorial combination of treatments, fitted in a randomized complete block design (RCBD), with four replications. The cropping systems constitute the soles and the intercrop, while the intra-row spacing of pearl millet into soybean were at 15 cm, 20 cm, 25 cm and 30 cm. Results of study showed that sowing pearl millet into soybean at the intra-row spacing of 30 cm produced the highest pearl millet yields of 4.7 t ha-1 and 4.9 t ha-1 respectively, at Makurdi and Ibi locations, as well as producing the highest soybean yields at both locations. In Makurdi, intercropping pearl millet with soybean significantly (P ≤ 0.05) decreased yield of pearl millet by 32.4 % and that of soybean by 29.4 % compared to sole cropping of the component crops, while at Ibi, intercrop yields of pearl millet and soybean were respectively reduced by 35.9 % and 30.0 % compared to their sole yields. Sowing pearl millet into soybean at the intra-row spacing of 30 cm also gave the highest total intercrop yields, highest land equivalent coefficient (LEC) values, highest land equivalent ratio (LER) values of 2.97 and 2.71 and highest percentage (%) land saved (66.3 % and 63.1 % respectively, recorded at Makurdi and Ibi locations). The implication of study showed that it is most advantageous having both crops in intercrop when pearl millet was sown into soybean at the intra-row spacing of 30 cm. This should therefore, be recommended for the southern guinea savanna, Nigeria.
    Źródło:
    World Scientific News; 2016, 44; 78-99
    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
    Tytuł:
    Impact of intercropping sorghum and okra on the incidence of flea beetles of okra Podagrica spp. in Dalwa, Maiduguri Semi-Arid Zone of Nigeria
    Autorzy:
    Degri, M.M.
    Richard, I.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/10789.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    intercropping
    sorghum
    okra
    incidence
    flea beetle
    Podagrica
    Dalwa town
    Maiduguri town
    semi-arid zone
    Nigeria
    Opis:
    Field experiments were conducted at faculty of Agriculture teaching and research farm, university of Maiduguri in 2010 and 2011 rainy seasons. The aim was to investigate the impact of intercropping sorghum with okra on the incidence of flea beetle of okra (Podagrica spp) in the semi-Arid zone of Nigeria. The results showed that sole crop okra suffered flea beetle attack which affected its growth, fruit formation, fruit weights and fruit yield. Intercropping okra with sorghum significantly reduced the flea beetle populations, leaf damage caused by Podagrica spp (Coleoptera: Chrysomelidae). While increasing number of leaves for photosynthetic activities, plant height, fruit formation, fresh fruit weight and total fruit yield. The study concluded that okra intercropping at 1:1, 1:2 and 2:2 are the most efficient and productive intercrop systems in flea beetle management. Okra intercropping with cereal sorghum was found to be good for sustainable agriculture and organic farming in Nigeria due to its numerous advantages, particularly with respect to insect pests’ control.
    Źródło:
    International Letters of Natural Sciences; 2014, 09
    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:
    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
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