Ekbom, Barbara
- Institutionen för entomologi, Sveriges lantbruksuniversitet
Sammanfattning
Field studies were conducted over three growing seasons during 2 years to assess the relative effect of market crop waste (MCW)-derived soil fertility amendments and conventional fertiliser (NPK) on tritrophic relations as well as yield performance of white cabbage. A randomised complete block design with four treatments and a control replicated four times was used. Treatments were (a) MCW compost incorporated in the soil, (b) uncomposted MCW incorporated in the soil, (c) uncomposted MCW applied as surface mulch, (d) a conventional chemical fertiliser (NPK) incorporated in the soil and (e) the untreated control. Results indicated that relative to NPK-amended plants, MCW-amended cabbage performed better in plant growth parameters as well as yield, despite having sustained aphid and Plutella xylostella infestations that could be as much as double as those in the NPK treatment. Natural enemy occurrence followed the trend of host insect infestations. The average yield performance and net financial benefits from MCW-compost-amended plants were three-fold as that of NPK-amended plants. Soil analysis results indicated an advantage in soil quality accruing from the MCW amendments. This study, therefore, provides documentation for the utilisation of MCW, previously handled as garbage to be disposed of, as a key component in integrated management of insect pests and depleted soils in crop production in sub-Saharan Africa and beyond.
Nyckelord
Brevicoryne brassicae; diamondback moth; integrated pest management; Myzus persicae; organic fertilisers
Publicerad i
Annals of Applied Biology
2006, volym: 149, nummer: 2, sidor: 103-109
SLU författare
UKÄ forskningsämne
Jordbruksvetenskap
Miljö- och naturvårdsvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1111/j.1744-7348.2006.00068.x
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/9160