Soil–Plant Nutrient Status and their Relations in Maize-Growing Fields of Wolaita Zone, Southern Ethiopia

Laekemariam, Fanuel; Kibret, Kibebew; Mamo, Tekalign; Gebrekidan, Heluf

doi:10.1080/00103624.2016.1166378

Cited by 39 publications

(64 citation statements)

References 21 publications

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“…The lower P content might be ascribed to the combined effects of intensive cultivation, lower P and organic fertilizer application, and lower pH values. Lower P content on cultivated soils was also reported in the literature [4,5,[37][38][39].…”

Section: Farmers' Soil Types and Their Propertiesmentioning

confidence: 49%

“…The yield gap is emanated from very poor crop residue maintenance, inadequate compensation of plant nutrients and continuous cropping [4,5]. Consequently, it resulted in the presence of multi-nutrient deficiencies including N, P, S, B and Cu.…”

Section: −1mentioning

confidence: 99%

“…The lower S in all soil types could be linked to lower soil OC, crop uptake and non-use of S fertilizers. In Ethiopia, different researchers also reported the lower available S content in cultivated soils [4,5,35,40].…”

Section: Farmers' Soil Types and Their Propertiesmentioning

confidence: 99%

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Farmers’ soil knowledge, fertility management logic and its linkage with scientifically analyzed soil properties in southern Ethiopia

2017

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Background: Farmers' locally have acquired knowledge from generations of experience and experimentation that fit local conditions. Yet, the scientific approach less used farmers' soil knowledge (FSK) and site-specific soil information. The objectives of this study were to investigate FSK and rationality; to demonstrate how FSK relates to scientifically analyzed soil properties; and to explore the implemented soil management practices and crop performances in selected districts of Wolaita zone, southern Ethiopia. A total of 789 farmers were included, and their fields were evaluated. Data on farmer's soil nomenclature, soil physicochemical property, soil fertility management practices and crop yield performance were recorded and analyzed.Results: Farmers describe and classify their soils using holistic approach. Soil nomenclature and classification indicators are relatively homogeneous over large area. Accordingly, seven soil types common over large area were identified. Mostly, soil types perceived fertile by farmers (e.g., Arrada bita) were found better in measured physicochemical properties than infertile soil types (e.g., Lada bita, Zo' o bita). Simple regression analysis revealed a declining trends of soil properties with a decrease in fertility of farmers soil types such as soil bulk density (r 2 = 0.78), pH (r 2 = 0.53), available phosphorous (r 2 = 0.83), total exchangeable bases (r 2 = 0.71), copper (r 2 = 0.64) and zinc (r 2 = 0.69). Farmers are rational to allocate the scarce fertilizers. They apply more chemical fertilizer when soil type was getting poor in soil fertility (r 2 = 0.61), whereas it was opposite for manure (r 2 = 0.85). Furthermore, crop response and farmers' soil type also demonstrated an observable relationship where yield was declining with a decrease in fertility level of farmers' soil types. Conclusions:Farmers understand within farm soil variability and exploit soil fertility differences of their field. This is supported with noticeable relationship with scientifically analyzed soil properties, fertility management strategy and crop responses. It suggests that FSK is relevant for site-specific soil management. Yet, FSK is deficient to identify yieldlimiting nutrients, implying it has to be complemented with scientific soil knowledge. Additionally, further investigation to systematically link both approaches is also suggested.

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Section: Farmers' Soil Types and Their Propertiesmentioning

confidence: 49%

Section: −1mentioning

confidence: 99%

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Farmers’ soil knowledge, fertility management logic and its linkage with scientifically analyzed soil properties in southern Ethiopia

2017

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“…Improving food production and soil resources in the smallholder farm sector of Africa has become an enormous challenge (Dagne,2016). According to the soil fertility map made over 150 districts, Ethiopian soil lacks about seven nutrients (N, P, K, S, Cu, Zn and B) (EthioSIS, 2013). Based on the EthioSIS (Ethiopian soil information system) soil analysis report of 2013 the study area lack Sulphur in addition to the low level of Phosphorus.…”

Section: Introductionmentioning

confidence: 99%

Tef Yield Response to NPS Fertilizer and Methods of Sowing in East Shewa, Ethiopia

Tesfahun

2018

J Agric Sciences

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“…Farmers practice crop rotation with minimal application of inorganic fertilizer (DAP and urea). In addition, farmers remove most crop residues and cultivate without any fallow periods ( Laekemariam , ). The cropland had been under cultivation for about 40–44 years.…”

Section: Methodsmentioning

confidence: 99%

Soil organic carbon and nutrients in smallholding land uses in southern Ethiopia

Lulu

Lemma

Melese

2019

J. Plant Nutr. Soil Sci.

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This study assessed the soil organic C (SOC) and soil nutrients in smallholding home garden, woodlot, grazing land, and cropland at two soil depths and two sites in Wolaita Zone, southern Ethiopia. The results showed that soil properties were significantly influenced by land use. The home garden had significantly higher (p < 0.05) SOC and soil nutrients when compared to the cropland. When the home garden was compared to the woodlot and grazing land uses, it had significantly higher (p < 0.05) values except in SOC, total N (TN), cation exchange capacity (CEC), and exchangeable Ca. Cropland, in comparison with grazing land and woodlot, had a non-significant difference except TN. The SOC stock (0-40 cm) in the home garden, woodlot, grazing land and cropland was 79.5, 68.0, 65.0, and 58.1 Mg ha -1 , respectively. Home garden significantly differed (p 0.05) in SOC only from cropland, and this was attributed not only to the relatively higher organic input in the home garden but also to the little organic matter input and frequently tillage of the cropland. The similar SOC among the home garden, woodlot and grazing lands may imply that the balance between inputs and outputs could be nearly similar for the land uses. Soil TN and CEC had a nearly similar pattern of difference as in SOC among the land uses because of their close relationship with SOC. In general, the land use influence on soil nutrients can be in the order: home garden > wood land grazing land cropland, with home garden showing the least difference from the woodlot and the greatest from the cropland. In the agroecosystem, in general, the influence of smallholding home garden on SOC and soil nutrient was marginally different from Eucalyptus woodlot and grazing lands but evidently different from cropland.

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Soil–Plant Nutrient Status and their Relations in Maize-Growing Fields of Wolaita Zone, Southern Ethiopia

Cited by 39 publications

References 21 publications

Farmers’ soil knowledge, fertility management logic and its linkage with scientifically analyzed soil properties in southern Ethiopia

Farmers’ soil knowledge, fertility management logic and its linkage with scientifically analyzed soil properties in southern Ethiopia

Tef Yield Response to NPS Fertilizer and Methods of Sowing in East Shewa, Ethiopia

Soil organic carbon and nutrients in smallholding land uses in southern Ethiopia

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