Growth and yield response of sweet potato to nitrogen fertilization in soils of Ladysmith, KwaZulu-Natal, South Africa

Mvula, Nomakhisimusi Gloria

dc.contributor.advisor	Kanu, Sheku Alfred
dc.contributor.advisor	Makungu, Melvin C.
dc.contributor.author	Mvula, Nomakhisimusi Gloria
dc.date.accessioned	2020-02-12T12:38:43Z
dc.date.available	2020-02-12T12:38:43Z
dc.date.issued	2019-02
dc.date.submitted	2020-02
dc.identifier.uri	http://hdl.handle.net/10500/26260
dc.description.abstract	Sweet potato (Ipomea batatas L.) yield is low due to nitrogen constraints. This field study evaluated nitrogen fertilization on growth, yield and nutrient content of two sweet potato cultivars grown in soils of Ladysmith. Six nitrogen levels (0, 13, 23, 33, 43 and 53 kg N/ha) and two cultivars as treatments were arranged in a randomized complete block design with three replications. Generally, there was a steady increase in growth and yield as N fertilization increased from 0 kg/ha to 53 kg/ha. The interaction between cultivar and N level was significant for sweet potato’s growth and yield. Tuberous roots number per plant was higher in Beauregard (12.00) fertilized with 53 kgN/ha compared to Ndou (8.00) without N. Sweet potato cultivar response to treatment was significant for shoot and tuber nutrient contents. High agronomic yield was observed with high N fertilization (53 kg N/ha) of sweet potato in soils of Ladysmith in KwaZulu-Natal Province.	en
dc.format.extent	1 online resource (xiii, 89 leaves) : illustrations (chiefly color), color map, graphs	en
dc.language.iso	en	en
dc.subject.ddc	635.22894096849
dc.subject.lcsh	Sweet potatoes -- South Africa -- Ladysmith -- Growth	en
dc.subject.lcsh	Sweet potatoes -- Breeding -- South Africa -- Ladysmith	en
dc.subject.lcsh	Nitrogen fertilizers -- South Africa -- Ladysmith	en
dc.title	Growth and yield response of sweet potato to nitrogen fertilization in soils of Ladysmith, KwaZulu-Natal, South Africa	en
dc.type	Dissertation	en
dc.description.department	Agriculture and  Animal Health	en
dc.description.degree	M. Sc. (Agriculture)