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Corralling, planting density, and N fertilizer rate effect on soil properties, weed diversity, and maize yield

Author:
Abdul Rahman, Nurudeen, Larbi, Asamoah, Opoku, Andrews, Tetteh, Francis Marthy, Hoeschle-Zeledon, Irmgard
Source:
Agroecology and sustainable food systems 2019 v.43 no.3 pp. 243-260
ISSN:
2168-3573
Subject:
biomass, corn, experimental design, farmers, farming systems, flocks, goats, nitrogen fertilizers, plant density, planting density, sheep, soil properties, stocking rate, weed control, yield components, Ghana
Abstract:
The interaction effect of stocking density of sheep and goat corralling (SDSG), maize planting density (MPD), and N fertilizer rate (NFR) on soil properties, weed diversity, and maize yield were evaluated on-farm in a smallholder maize-livestock farming system of Northern Ghana during the 2014 and 2015 cropping seasons. A split-split plot design replicated on eight farms was used to study the effect of three SDSG (0, 70, and 140 head ha⁻¹), three MPD (66 667, 100 000, and 133 333 plants ha⁻¹), and three NFR (0–40-40, 60–40-40, and 90–40-40 NPK kg ha⁻¹). The SDSG at 70 and 140 head ha⁻¹ increased (P < 0.01) soil chemical and biological properties and weed diversity compared with the control in both cropping seasons. Maize growth, yield and yield components, and weed biomass were affected (P < 0.05) by the SDSG, MPD, and NFR interactions. Maize-livestock farmers with smaller flock size could use SDSG at 70 head ha⁻¹ with NFR at 90 kg ha⁻¹, whilst those with large flock size could stock at 140 head ha⁻¹ with NFR at 60 kg ha⁻¹ and MPD at 133 333 plants ha⁻¹ for increased maize yield and weed management.
Agid:
6315072