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Wyświetlanie 1-2 z 2
Tytuł:
Effects of local liming materials on soil properties and yield of waterleaf (Talinum fructicosum (L.) Juss.) in an ultisol of southeast Nigeria
Autorzy:
Iren, O. B.
Uwah, I. D.
Powiązania:
https://bibliotekanauki.pl/articles/1109101.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Ash
Talinum fructicosum
soil acidity
soil properties
waterleaf
yield
Opis:
Soils of the tropics are generally acidic mainly due to the high and intensive rainfall that causes excessive loss of the basic cations. High soil acidity is often a limiting factor for plant growth. Liming is the most widely used method to neutralize acidity and improve crop performance. A field trial was conducted at two locations in the University of Calabar Teaching and Research Farm, Calabar, to determine the effects of local liming materials on soil properties and yield of waterleaf. Seven treatments consisting of wood ash (WA), oil palm bunch ash (OPBA), cocoa pod ash (COPA), periwinkle shell ash (PSA), cassava peels ash (CAPA), and carbide waste (CW), each applied at 8 t /ha, and a control (no lime applied) were laid out in a randomized complete block design with three replications. The result showed increase in soil pH from 4.5 before experiment to 5.93 in the plot treated with wood ash. Over all, soil organic carbon, available phosphorus, basic nutrients (Ca, Mg, K, Na) and base saturation were significantly (P < 0.05) increased in plots treated with lime materials. Plant height, number of leaves, number of branches, stem girth, leaf area, fresh and dry matter yield of waterleaf were all significantly increased. However, the highest mean fresh yield of 4.61 t/ha obtained from the WA treated plot was not significantly (P > 0.05) higher than the yield of 4.36 t/ha obtained from OPBA treated plots, but was higher significantly than other treatments. The fresh yield increase was 61, 58, 46, 45, 39 and 35%, while the dry matter yield percentage increase was 63, 56, 53, 50, 42 and 22 for WA, OPBA, COPA, PSA, CAPA and CW. Therefore, for amelioration of soil acidity and better crop performance in the acid Ultisol of Southeast Nigeria, application of either wood ash or oil palm bunch ash is recommended.
Źródło:
World News of Natural Sciences; 2018, 21; 53-63
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Yield of cotton cultivars as influenced by nitrogen rates and plant density in Yalingo, Nigeria
Autorzy:
Omadewu, L. I.
Iren, O. B.
Eneji, A. E.
Powiązania:
https://bibliotekanauki.pl/articles/1062826.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cotton variety
lint yield
nitrogen rate
plant population
seed yield
urea fertilizer
Opis:
Nitrogen rates and plant density are two important practices for optimum production of cotton. Field experiment was conducted at two locations within the Research Farm, College of Agriculture, Jalingo (longitude 11° 09’ and 11° 30’ East and latitude 8° 17’ and 9° 01’ North) in Nigeria to investigate the influence of nitrogen rates and plant density on yield components of cotton cultivars. A 4 × 3 × 2 factorial of four nitrogen (N) rates (0, 120, 150, 200 kg/ha), three cotton varieties (Jalingo Local, Samcot-13, Sketch-8) and two plant densities (44,444 and 60,000 plants/ha) was arranged in a randomized complete block design (RCBD) and replicated three times. Data were collected on cotton seed yield, lint yield and number of seeds/boll. Nitrogen rate, plant density and variety had a positive effect on cotton seed yield, lint yield and number of seeds/boll. Nitrogen rates at all levels significantly (p< 0.05) increased the seed and lint yield of cotton when compared with control. However, the differences in yield between 150 kg N/ha and 200 kg N/ha rate was not significant making nitrogen rate of 150 kg N/ha more economical and optimum for cotton seed yield. Low plant population gave rise to higher seed yield. Interactively, the 150 kg N/ha × Jalingo Local × low plant density (44,444 plants/ha) gave the highest cotton seed and lint yield.
Źródło:
World Scientific News; 2019, 127, 3; 106-122
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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