Influence of intra-row spacing and mulching on weed growth and bulb yield of garlic (ALLIUM SATIVUM l.) in Sokoto, Nigeria.


A.K. Karaye and A.I. Yakubu*

Two field experiments were conducted during 2000/2001 and 2001/2002 dry seasons under irrigation at Kwalkwalawa Research FADAMA Farm of Usmanu Danfodiyo University, Sokoto to investigate the response of weed growth and bulb yield of garlic to intra-row spacing and mulching. The treatments consisted of three intra-row spacings (10, 15, and 20 cm) and four mulching rate (0, 5, 7 and 9 t/ha). These were laid out in split plot design and replicated three times. Intra-row spacing was assigned to main plots and mulching was allotted to sub plots. Gross and net plot sizes were 3 x 1.5 m and 2.5 x 1 m, respectively. Results indicated that the number of leaves/plant, weed growth and cured bulb yield responded significantly to intra-row spacing and mulching, except in 2000/2001 trial, when the effect of mulching on cured bulb yield was not significant. Based on the results obtained, it could be concluded that for optimum bulb yield in garlic, the intra-row spacing of 10 cm and 9 t/ha mulching rate should be adopted.

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