Work

Agronomic performance of sweet potato genotypes in Eswatini under organic and inorganic soil amendments

Year: 2025

Type: article

Abstract: Two field trials were conducted at the Lowveld Experimental Station (LES) and Malkerns Research Station (MRS) to determine the agronomic performance of sweet potato genotypes in Eswatini under organic and inorganic soil amendments.A 3 x 5 factorial experiment was laid out in a randomised complete block with three replications.The treatments included four sweetpotato genotypes, Namanga, Cecelia, Melinda and Ligwalagwala with five nutrient amendments: no fertiliser/manure, four rates of cattle manure at 20, 40, 60 and NPK 2:3:4 (39) at 0.45 tonnes per hectare.Field results showed significant differences (P < 0.05) among sweet potato genotypes and yield at LES and MRS.Mean petiole and vines lengths at LES and MRS under the different treatments.showed significant differences among sweet potato genotypes.Results from LES and MRS showed that growing Melinda using inorganic fertilizers at 0.45 t/ha gave the highest marketable yield of 29.46 and 26.34 t/ha respectively.The results showed relatively similar levels of performance of inorganic fertilizer when compared with cattle manure applications.

Source: International Journal of Development and Sustainability

DOI: 10.63212/ijds24122601

Language: English

Topic: Agricultural Science and Fertilization

Subfield: Soil Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: diamond

Funders: European Commission, African Academy of Sciences, African Union, African Union Commission

Awards: G4115879946, G567979780, G6113878882

OpenAlex ID: W4410920147

FWCI:

Cites: 32

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Related to: 10