Effect of Tithonia diversifolia (Hemsley) and inorganic fertilizers on maize yield on Alfisols and Ultisols of western Kenya

Achieng, J. O.; Ouma, George; Odhiambo, George D.; Muyekho, Francis N.

doi:10.5251/abjna.2010.1.5.740.747

Cited by 9 publications

(7 citation statements)

References 8 publications

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“…The resultant product is called Kwasu organic-based fertilizer (KOBF). The choice of tithonia, a roadside weed having vigorous growth habit, as a component in formulating KOBF was based on its availability virtually everywhere and its potential for raising the levels of the major nutrients in soils (Achieng et al, 2010;Jama et al, 2000). This attempt of the Kwara State University Malete (Kwasu) crop scientists was also informed by the general agreement among several researchers that using a mixture of organic and inorganic fertilizers for soil fertility management significantly performs better on growth and yield of crops than using the single fertilizer types alone (Makinde et al, 2001;Sridhar and Adeoye, 2003;Makinde and Ayoola, 2008;Ogunlade et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Growth and yield response of okra (Abelmoschus esculentus (L.) Moench) to fertilizer types and times of application in the southern guinea savanna agro-ecozone of Nigeria

2019

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A field study was carried out at the Kwara State University Teaching and Research Farm, Malete, to evaluate the response of vegetative growth and immature fruit yield of okra (Abelmoschus esculentus (L.) Moench) to three fertilizer types and three times of application. The fertilizer types, used at the rate of 60 kgN/ha, were Kwasu organic-based fertilizer type 2 (KOBF-2), Aleshinloye organo-mineral fertilizer grade A (AOMF-A), and inorganic NPK 15-15-15 fertilizer (NPK), each applied at planting time, 2 weeks after planting (WAP), and 4 WAP. The trial was laid out in a 3 x 3 factorial arrangement in a randomized complete block design and replicated three times. All the data collected were subjected to analysis of variance, using the SAS statistical package, and the treatment means were separated using Duncan's Multiple Range Test at 5% probability level. The result indicated no significant differences in plant height, number of leaves/plant, number of fruits/plant, and the average length of the fruits between fertilizer types and application times. However, there were significant differences in leaf area/plant at 6WAP and fruit yield. Irrespective of the times of application, KOBF-2 gave significantly higher immature fruit yield (2.84 t/ha) than NPK (1.93 t/ha) and AOMF-A (1.72 t/ha). The results thus suggest that the new organic-based fertilizer formulated in this study (KOBF) deserves incorporation into national fertilizer programs for sustainable crop production.

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Section: Introductionmentioning

confidence: 99%

Growth and yield response of okra (Abelmoschus esculentus (L.) Moench) to fertilizer types and times of application in the southern guinea savanna agro-ecozone of Nigeria

2019

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“…It is native to eastern Mexico and Central America but has a nearly pan tropical distribution as an introduced species (USDA 2011). It has shown great potential in raising the soil fertility in soils depleted in nutrients (Achieng et al 2007). Originating in Mexico; research has shown its potential in benefiting poor African farmers (Jama et al 2000).…”

Section: Introductionmentioning

confidence: 99%

Growth, yield and vitamin C content of radish (Raphanus sativus L.) as affected by green biomass of Parkia biglobosa and Tithonia diversifolia

et al. 2017

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“…The different spatial arrangements also depicted production opportunities regarding management, socio-economic and biophysical factors that could be utilized to improve maize yields. The high proportion of organic fertilizer used at the near house plots indicated a high nutrient supply and water retention [44]. This can be utilized to increase maize production by improving timely execution of agronomic activities such as land preparation, weed control and use of long duration maize varieties.…”

Section: The Production Opportunities For the Different Spatial Arranmentioning

confidence: 99%

Micro-Spatial Analysis of Maize Yield Gap Variability and Production Factors on Smallholder Farms

et al. 2019

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Site-specific land management practice taking into account variability in maize yield gaps (the difference between yields in the 90th percentiles and other yields on smallholder farmers’ fields) could improve resource use efficiency and enhance yields. However, the applicability of the practice is constrained by inability to identify patterns of resource utilization to target application of resources to more responsive fields. The study focus was to map yield gaps on smallholder fields based on identified spatial arrangements differentiated by distance from the smallholder homestead and understand field-specific utilization of production factors. This was aimed at understanding field variability based on yield gap mapping patterns in order to enhance resource use efficiency on smallholder farms. The study was done in two villages, Mukuyu and Shikomoli, with high and low agroecology regarding soil fertility in Western Kenya. Identification of spatial arrangements at 40 m, 80 m, 150 m and 300 m distance from the homestead on smallholder farms for 70 households was done. The spatial arrangements were then classified into near house, mid farm and far farm basing on distance from the homestead. For each spatial arrangement, Landsat sensors acquired via satellite imagery were processed to generate yield gap maps. The focal statistics analysis method using the neighborhoods function was then applied to generate yield gap maps at the different spatial arrangements identified above. Socio-economic, management and biophysical factors were determined, and maize yields estimated at each spatial arrangement. Heterogeneous patterns of high, average and low yield gaps were found in spatial arrangements at the 40 m and 80 m distances. Nearly homogenous patterns tending towards median yield gap values were found in spatial arrangements that were located at the 150 m and 300 m. These patterns correspondingly depicted field-specific utilization of management and socio-economic factors. Field level management practices and socio-economic factors such as application of inorganic fertilizer, high frequency of weed control, early land preparation, high proportion of hired and family labor use and allocation of large land sizes were utilized in spatial arrangements at 150 and 300 m distances. High proportions of organic fertilizer and family labor use were utilized in spatial arrangements at 40 and 80 m distances. The findings thus show that smallholder farmers preferentially manage the application of socio-economic and management factors in spatial arrangements further from the homestead compared to fields closer to the homestead which could be exacerbating maize yield gaps. Delineating management zones based on yield gap patterns at the different spatial arrangements on smallholder farms could contribute to site-specific land management and enhance yields. Investigating the value smallholder farmers attach to each spatial arrangement is further needed to enhance the spatial understanding of yield gap variation on smallholder farms.

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Effect of Tithonia diversifolia (Hemsley) and inorganic fertilizers on maize yield on Alfisols and Ultisols of western Kenya

Cited by 9 publications

References 8 publications

Growth and yield response of okra (Abelmoschus esculentus (L.) Moench) to fertilizer types and times of application in the southern guinea savanna agro-ecozone of Nigeria

Growth and yield response of okra (Abelmoschus esculentus (L.) Moench) to fertilizer types and times of application in the southern guinea savanna agro-ecozone of Nigeria

Growth, yield and vitamin C content of radish (Raphanus sativus L.) as affected by green biomass of Parkia biglobosa and Tithonia diversifolia

Micro-Spatial Analysis of Maize Yield Gap Variability and Production Factors on Smallholder Farms

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