Journal of
Soil Science and Environmental Management

  • Abbreviation: J. Soil Sci. Environ. Manage.
  • Language: English
  • ISSN: 2141-2391
  • DOI: 10.5897/JSSEM
  • Start Year: 2010
  • Published Articles: 307

Article in Press

Nutrient uptake and use efficiencies of strip intercropped cassava, maize and pepper as affected by fertilizer type and age of oil palm fields in an oil palm-based intercropping system

Obi1, E.A., Agele2*, S.O., Aiyelari2, O.P. Adejoro2, S.A. & Agbona3, A.I.

  •  Received: 04 April 2020
  •  Accepted: 18 May 2020
An experiment was conducted to examine the responses of Cassava, Maize and Pepper to fertilizers when sown as sole and strip intercrops in the alleys of 3, 4 and 6 years old oil palm fields. The fertilizers (NPK:1.44 kg/plot), Ferti Plus (an organomineral fertilizer: 9.68 kg/plot and poultry manure: 6.17 kg/plot) were applied two weeks after planting (WAP). Treatments were arranged in a factorial scheme consisting of crop types and fertilizers arranged using RCBD at 3 replications. Data were collected on the soil and plant biomass nutrient concentrations which were deployed for the computation of the indicators of nutrient uptake and use efficiencies of the intercrop species. The fertilizers exerted significant effects on nitrogen uptake for biomass (leaf and seed/fruit/tuber) production and for most of the indicators of N use efficiencies measured. While NPK enhanced N uptake and apparent recovery of N in above ground biomass, ferti plus (organo-mineral fertilizer) and poultry manure promoted most other indicators of agronomic and physiological N use efficiencies. Uptake and yields of N were higher for the respective sole crops of cassava, maize and pepper compared with the intercrops across the fertilizers compared with the control. While N content was highest for fruits of pepper, N uptake and yields were highest for cassava tubers and seeds of maize. Cassava and maize had enhanced agronomic efficiency (AE), N-remove at harvest, Internal utilization efficiency (IE) and apparent recovery efficiency (RE) while pepper had higher IE, Agronomy Efficiency (AE), Apparent Recovery Efficiency (RE), Agronomic and Physiological Efficiency (PE) of N use. Age of oil palm fields and fertilizers influenced nutrient uptake and use efficiencies of the alley intercrop species. The values of the measured indicators of N uptake and use efficiencies were highest for 4 and 6 years compared with the 3 years old fields across the intercrop species. The efficiencies of uptake and use of N were higher for NPK and ferti plus compared with poultry manure across the ages of oil palm fields. It is concluded that, alley intercrop species exhibited differences in their ability to take up and use N efficiently for biomass and economic yield production. For arable crops grown in the alley of oil palm (1 to 6 years old), supplementary nutrients input especially nitrogen is needed from fertilizers (organic and inorganic) to meet the nutrient requirements of alley crops.

Keywords: Alley, oil palm, arable, resources, fertility, uptake, use, efficiency, yield