Abstract
The excessive and continuous use of synthetic chemicals for cabbage production has received several concerns over chemical residues in food and their resultant effects on the health of humans and animals. It is against this background that an effective and environmentally friendly approach considering tomato as an intercrop in the organic Cabbage production was explored in this study. The experiment was conducted from November, 2010 to March 2011 during the minor cropping season on an experimental field near the Department of Theoretical and Applied Biology at the Kwame Nkrumah University of Science and Technology, Kumasi to evaluate the effectiveness of intercropping cabbage with tomato for pest control in organic cabbage production systems. The experimental design used was a randomized complete block design with five treatments and three replications (blocks). The treatments were sole tomato, sole cabbage, two rows of cabbage to one row of tomato, three rows of cabbage to one row of tomato and four rows of cabbage to one row of tomato. Parameters studied included insect pests’ numbers and their natural enemies. Major insect pest recorded included Brevicoryne brassicae, Plutella xylostella, Hellula undalis and Pieris rapae which caused damage to the cabbage plant (Brassica oleracae var. oxyllus). The natural enemies of pests of cabbage identified were the ladybird beetle, (Cheilomenes sp), huntsman spider, Heteropoda venotoria and black carpenter ant Camponotus pennsylvanicus. Data were taken on plant height, canopy spread, per cent head damage and weight of cabbage head at harvest. Results on the insect pest population showed significant differences. However, there was no significant difference (P = 0.3179) observed between the control cabbage and the cabbage-tomato intercrops. The results on the cabbage plants showed significant differences (p<0.05) in plant height, canopy spread, per cent head damage and weight of cabbage head at harvest. The study concluded that for better insect pest management and high productivity in organic cabbage production, two rows of cabbage to one row tomato among the treatments was the most appropriate.
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Claims 3
Claim · model-written summary
Cabbage-tomato intercrops did not differ significantly from sole cabbage in pest populations.
- Taxon
- cabbage
Brassica oleracea var. capitatae0 - Treatment
- cabbage-tomato intercropse0
- Outcome
- insect pest populatione0
- Direction
- no significant differencee0
- Value
- P = 0.3179e0
- Comparator
- control cabbagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results on the insect pest population showed significant differences. However, there was no significant difference (P = 0.3179) observed between the control cabbage and the cabbage-tomato intercrops.”
Claim · model-written summary
Cabbage planting treatments differed significantly in height, canopy, head damage, and head weight.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Outcome
- plant height, canopy spread, per cent head damagee0
- Direction
- significant differencese0
- Value
- p<0.05e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results on the cabbage plants showed significant differences (p<0.05) in plant height, canopy spread, per cent head damage and weight of cabbage head at harvest.”
Claim · model-written summary
Two cabbage rows per tomato row were judged most suitable for pest management and productivity.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Outcome
- two rows of cabbage to one row tomatoe0
- Direction
- most appropriatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study concluded that for better insect pest management and high productivity in organic cabbage production, two rows of cabbage to one row tomato among the treatments was the most appropriate.”
The same questions in other papers
intercropping · pest · Brassica oleracea (wild cabbage)Positive and negative results
2 papers in the same direction as this paper · 15 in the opposite direction
- positive
- positive
- positive
14 papers more in this group
See all 18 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.