2016
DOI: 10.31248/jasp2016.014
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Comparative effect of pig manure, urea fertilizer and their combinations on the performance of Amaranthus cruentus in a rainforest Ultisol, Nigeria

Abstract: The influence of pig manure, urea and their combinations on the performance of Amaranthus cruentus was investigated for two years in a rainforest Ultisol of Umudike. The experiment was laid down in a randomized complete block design with four replications. Six treatments consisted of pig manure applied at equivalent rates of 90 kg N/ha as full dose of manure, urea at 60 kg N/ha as full dose of urea. Other treatments were ½ dose of manure (45 kg N/ha) + ½ dose of urea (30 kg N/ha), ¼ dose of manure (22.5 kg N/h… Show more

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Cited by 6 publications
(12 citation statements)
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“…The organic materials act as added enrichment for the humus content of the soil (Iren et al, 2017). Combine application of organic manure and mineral fertilizers buffer the soil against undesirable acidification and increasing the availability of nutrients (Iren et al 2014;2016). The blending of organic manure with mineral fertilizer can help to increase the productivity of crops by reducing nutrient losses via leaching and erosion.…”
Section: Introductionmentioning
confidence: 99%
“…The organic materials act as added enrichment for the humus content of the soil (Iren et al, 2017). Combine application of organic manure and mineral fertilizers buffer the soil against undesirable acidification and increasing the availability of nutrients (Iren et al 2014;2016). The blending of organic manure with mineral fertilizer can help to increase the productivity of crops by reducing nutrient losses via leaching and erosion.…”
Section: Introductionmentioning
confidence: 99%
“…Vegetable storage and packaging knowledge is essential for achieving a long shelf life for the vegetable after cultivation (Iren et al, 2016). Water activity and moisture content are important indicators of vegetable shelf life and freshness (Mohammed & Sharif, 2011).…”
Section: Discussionmentioning
confidence: 99%
“…Despite rising demand for Amaranthus in Tamale, Ghana, farmers are facing high production costs and soil fertility issues, necessitating increased productivity to compensate for its rising demand (Guerrero et al, 2013;Abdel-Shafy and Mansour, 2018). Soil fertility challenges necessitated long-term management of soil resources in order to increase fertility to levels suitable for vegetable production (Ojobor and Tobih, 2015;Iren et al, 2016). Soils are frequently susceptible to continuous degradation once they are used for cultivation; however, inorganic fertilizers used to mitigate the effects of poor yield are facing a lot of criticism on both the health and environmental fronts .…”
Section: Introductionmentioning
confidence: 99%
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“…Poor cultivation practices such as continuous cropping could result in low soil fertility through a reduction in soil organic matter (SOM), and an increase in soil acidity (Aihou et al, 2008). In recent times, due to the high cost of inorganic fertilizers, and the inherent low nutrient fertility (Iren et al, 2016), attention has moved to organic manure as a superior option to improve crop yield. Umoh et al (2022b) revealed that goat, pig and poultry manures added to soil increased organic matter, N, P, K and Ca levels which significantly increased the growth and yield of maize.…”
Section: Introductionmentioning
confidence: 99%