Critical levels for soil pH, available P, K, Zn and Mn and maize ear-leaf content of P, Cu and Mn in sedimentary soils of South-Western Nigeria

Adeoye, G. O.; Agboola, A. A.

doi:10.1007/bf01058165

Cited by 108 publications

(73 citation statements)

References 9 publications

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“…The pre-planting major nutrient content of the soil was inadequate, where the minimum critical level required for crop growth in the area is 0.6-1.0 mg kg -1 for N, 3-7 mg kg -1 for P, and 0.21-0.3 cmol kg -1 for K (Adeoye and Agboola 1985). This nutrient status of the soil agreed with the results of Aduayi et al (2002) who reported that most Nigerian soils are deficient in major nutrient, thus emphasis the need for use of sustainable soil amendments.…”

Section: Discussionmentioning

confidence: 99%

Soil chemical properties and growth response of Moringa oleifera to different sources and rates of organic and NPK fertilizers

Adebayo

Akintoye

Shokalu

et al. 2017

Int J Recycl Org Waste Agricult

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Purpose The need for increasing production of Moringa oleifera in Nigeria can be achieved through adequate fertilization. This study investigated the effects of sources and rates of NPK (15:15:15) and compost on soil properties and productivity of Moringa at National Horticultural Research Institute, Ibadan, Nigeria. Methods NPK was applied at 30, 60, and 90 kg N/ ha, cow dung (CD), poultry manure (PM) and organomineral (OM) were applied at 10, 20 and 30 tons/ha. The experimental design was a randomized complete block design with three replicates. Organic fertilizers were incorporated into the soil 2 weeks before sowing; NPK was split applied at 2 and 5 weeks after sowing. Seeds were sown at 75 cm 9 75 cm spacing. Data were taken on plant height (cm), stem girth (cm), number of leaves, leaf biomass, stems weight and post-planting soil properties.Results Growth values for NPK and compost treatments were higher than the control. PM applied at 30 tons ha -1 resulted in highest growth values: plant height (65.91 cm), stem girth (1.51 cm) and number of leaves (14.20). PM applied at 30 tons ha -1 gave higher stem weight (2249.9 g) and leaf biomass (3610.5 g). Post-planting soil analysis indicated that nitrogen, phosphorus, calcium, sodium, manganese, iron and zinc contents were higher in plots with organic and inorganic fertilizers except for potassium and magnesium.Conclusion PM proved more superior to CD manure and others because it produced better growth attributes such as shoot height, stem girth and number of leaves and leaf biomass than its counterparts produced.

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Section: Discussionmentioning

confidence: 99%

Soil chemical properties and growth response of Moringa oleifera to different sources and rates of organic and NPK fertilizers

Adebayo

Akintoye

Shokalu

et al. 2017

Int J Recycl Org Waste Agricult

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“…Zinc was not detected in Ibi soil. All the mineral contents except that of K and Zn could be considered adequate for maximum growth of most tropical crops (Adeoye and Agboola, 2005).…”

Section: Minerals Analysismentioning

confidence: 99%

Assessing the level of soil nutrients: a case study of Donga, Ibi and Wukari farmlands in Taraba State, Nigeria

Zaku¹,

Emmanuel²,

Thomas³

2011

ABJNA

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Physical and chemical properties of the soil samples from the three regions; Donga, Ibi and Wukari in the southern part of Taraba State, Nigeria were determined. These are colour, pH, and conductivity while the mineral compositions investigated (soil nutrients) were N, P, K, Ca, Mg, Fe, Na, Mn and Zn by highly sensitive methods. The pH ranges from 6.1 -6.8, 6.2 -6.8, 6.1 -6.8 at Donga, Ibi and Wukari respectively. The conductivity ranges from 0.72 -1.65 x10 2 µS /cm, 0.78 -2.58 x10 2 µS /cm, 0.57 -1.90 x10 2 µS /cm respectively. The results indicated that Donga and Wukari had relatively higher nutrients than Ibi. However Mn and Zn were absent in some locations of the study areas but at Ibi Zn was not detected at any of the sample site.

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“…Organic matter concentration, available nitrogen, available phosphorus, total exchangeable bases and acidity, and effective cation exchange capacity (ECEC) all indicated low values in this soil. For instance, both available nitrogen and available phosphorus were below their critical ranges of values of 1.50-2.00 and 10-16 mg kg -1 , respectively for arable crop production in tropical soils (Sobulo and Osiname 1981;Adeoye and Agboola 1985). Similarly, the soil was deficient of exchangeable potassium, as this parameter was clearly below the critical range of values of 63-99 mg kg -1 (Akinrinde and Obigbesan 2000).…”

Section: Resultsmentioning

confidence: 99%

The potential of fermented cottonseed oil-mill effluent as inexpensive biofertilizers and its agronomic evaluation on medium-textured tropical soil

Okorie

Obalum

Singh

2017

Int J Recycl Org Waste Agricult

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Purpose Upsurge of oil-mill industries and associated generation of wastewaters constitutes a huge environmental problem in Nigeria. As an option to reckless disposal, such effluents are often fermented and used as biofertilizers for nutrient-poor soils, but the potential of cottonseed oilmill effluent (COME) and agronomic evaluation of such potential has yet been studied. Methods A pot trial was conducted in northern Nigeria to assess the effects of COME fermented for 20 days and applied at five rates (0, 50, 100, 150 and 200 g 5-kg -1 soil) on soil fertility 2 weeks after application and performance of African Spinach over the next 5 weeks. Results Soil pH increased steadily from 7.5 in unamended soil (control) to 8.0 at the maximum rate of fermented COME. Soil organic matter showed similar trend; from 16.7 to 27.7 g kg -1 . Also, soil available nitrogen, available phosphorus and exchangeable potassium all indicated lowest values (0.28, 4.36 and 8.25 mg kg -1 , respectively) in the control and the values increased steadily with increase in COME rate up to 0.47, 24.94 and 29.75 mg kg -1 , respectively, at the maximum rate. By contrast, plant height, leaf area, number of leaves and fresh leaf yield of spinach were highest in the control and decreased with increase in COME rate until total inhibition of plant growth at C150 g 5-kg -1 soil.Conclusion Fermentation of COME for 20 days before use permits the expression of its fertilizer value in soil; however, the fermentation level attained within this period translates into a sub-optimal detoxification status that is too low for crop growth.

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Critical levels for soil pH, available P, K, Zn and Mn and maize ear-leaf content of P, Cu and Mn in sedimentary soils of South-Western Nigeria

Cited by 108 publications

References 9 publications

Soil chemical properties and growth response of Moringa oleifera to different sources and rates of organic and NPK fertilizers

Soil chemical properties and growth response of Moringa oleifera to different sources and rates of organic and NPK fertilizers

Assessing the level of soil nutrients: a case study of Donga, Ibi and Wukari farmlands in Taraba State, Nigeria

The potential of fermented cottonseed oil-mill effluent as inexpensive biofertilizers and its agronomic evaluation on medium-textured tropical soil

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