Sokoine University of Agriculture

Optimization of land productivity in Zanzibar through intercropping of cassava (Manihot esculenta Crantz) and sweet potatoes (Ipomoea batatas L.Lam)

Show simple item record Ally, Hamad Ally 2021-03-16T07:07:01Z 2021-03-16T07:07:01Z 2020
dc.description Masters Thesis en_US
dc.description.abstract Two field experiments were conducted during the growing season of 2018/2019 at Zanzibar Agricultural Research Institute (ZARI) Unguja and Pemba. The objective of the experiment was to explore the potentiality of optimizing land productivity through intercropping cassava with sweet potato on limited land available. The experiment was a split-split plot laid out in a randomized complete block design (RCBD) with four replications. Improved cassava variety 'Kizimbani' was intercropped with improved sweet potato variety 'Mayai'. The main plot was intercropping time of sweet potato. Fertilizer application was a sub plot and sweet potato intercrop plant density of 10 000, 20 000 and 30 000 plants ha-1was a sub-sub plot. There were 48 intercropped plots and 32 sole-cropped plots. Data on crop establishment, plant height, canopy dimension, foliage cover, vine vigour, root/tuber yields and number of roots/tubers were collected and subjected to analysis of variance (ANOVA). The results revealed that there were significant differences between treatments in crop yields, vine vigor, plant height, foliage cover, canopy length, thickness and number of marketable roots/tubers. Furthermore, there were significant differences in the two sites in most of the observed characteristics. Matangatuani gave the highest yield of cassava (17.63tha-1) in intercropping compared with Kizimbani (13.15tha-1). However, for sweet potato, Kizimbanirecorded14.67tha-1 and Matangatuani13.75tha-1.In addition, intercropping of cassava with sweet potato gave the highest land equivalent ratio (LER) of 1.75 in combined site analysis. This indicated that the greatest productivity per unit area was achieved by growing the two crops together. en_US
dc.description.sponsorship African Cassava Agronomy Initiative(ACAI) en_US
dc.language.iso en en_US
dc.publisher Sokoine University of Agriculture en_US
dc.subject Cassava en_US
dc.subject Fertilizer en_US
dc.subject Intercropping en_US
dc.subject Planting time en_US
dc.subject Spacing en_US
dc.subject Sweet potato en_US
dc.subject Manihot esculenta Crantz en_US
dc.subject Ipomoea batatas L.Lam en_US
dc.subject Zanzibar en_US
dc.title Optimization of land productivity in Zanzibar through intercropping of cassava (Manihot esculenta Crantz) and sweet potatoes (Ipomoea batatas L.Lam) en_US
dc.type Thesis en_US

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