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Samaru Journal Of Agricultural Education

Year: 2016|   Volume No: 7|   ISSN: 0794 – 7860|   Page No: 


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Title:  Effect of Tillage and Weed Control Methods on Soil Hydrothermal Properties, Growth and Yield of Cowpea on an Ultisol, Kabba, Nigeria
OGUNDARE, E. K.

COLLEGE OF AGRICULTURE, DIVISION OF AGRICULTURAL COLLEGES, AHMADU BELLO UNIVERSITY, KABBA, NIGERIA

ABSTRACT

Experiments investigated the effect of different tillage system and weed control methods on soil hydrothermal properties, growth and yield of cowpea in an Ultisol.The design of the experiment was a split plot with different tillage practices and weed control methods in the main and sub-plots, respectively. The experiment comprised of three tillage practices (no tillage, manual tillage with hoe and conventional tillage (plough + harrow + ridge)) and four weed control methods (no weed control, hand pulling at 30 days interval, manual clearing with hoe at 30 days interval after planting and pendimenthalin (1.5 kg a.i. ha-1 ) planting plus hoeing at 50 days after planting. The following parameters were recorded: plant height, number of leaves per plant, leaf area per plant, number of days to 50% flowering, number of pods per plant, 100 seed weight and seed yield were taken. The results show that soil temperature was highest in manually tilled soil followed by plot with conventional tillage (plough + harrow + ridge) and no tilled plots had the least at 30 and 60 days after planting (DAP). Soil moisture was higher in manually tilled soil and conventional tillage system than no tilled soils. Plots treated with plough + harrow + ridge produced highest growth and yield of cowpea than both plots with no tillage and plots tilled with hoe. Also, pendimenthalin(1.5 kg a.i. ha-1 ) at planting plus hoeing at 50 days after planting enhanced better growth and grain yield of cowpea than other weed control treatments.

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