Abstract
This study investigated the effects of different soil enhancers on the growth response of okra [Abelmoschus esculentus (L.) Moench] cultivated on a ?contaminated? field with sewage sludge from the two oxidation ponds of the Obafemi Awolowo University (OAU), Ile-Ife, Nigeria. This was with a view to assessing the growth performance and yield of the test crop under different soil amendments. Okra variety, NHAe 47-4 with NPK 12-12-17 (IO), compost organic fertilizer (OR), Glomus mosseae mycorrhiza (MY) and zero fertilizer applications as control (CT) was laid out in a completely randomised block design and each treatment plot (4 x 2 m) was replicated four times. Selected weather parameters were collected from a meteorological station in OAU campus during the period of the experiments. Growth parameters such as plant height, stem girth and number of leaves of okra increased with added soil amendments from four weeks after planting in the order: IO > OR > MY > CT. In 2010, the highest mean yield of 16.3 t ha-1 obtained with 6.0 t ha-1 of MY was not significantly higher than 15.4 t ha-1 obtained with application of 0.2 t ha-1 of IO, but significantly (p < 0.05) higher than 13.1 and 10.4 t ha-1 obtained with applications of 6.0 and zero t ha-1 of OR and CT respectively. Comparative okra yield, though relatively higher with mycorrhizal inoculation, but lower with no soil amendment was obtained in 2011. The study concluded that a direct linear relationship existed between solar radiation and okra productivity. Also, for a moderately ?treated field? with sewage sludge from domestic wastes, arbuscular mycorrhizal fungi can be integrated into soil fertility management to achieve low-cost sustainable agricultural systems for enhanced productivity of okra.
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Claims 5
Claim · model-written summary
Amendments increased okra height, girth and leaf number in the order IO, OR, MY, CT.
- Taxon
- okra
.jpg?width=60)
Abelmoschus esculentust0 - Treatment
- soil amendmentse0
- Outcome
- plant height, stem girth and number of leavese0
- Direction
- increasede0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“okra”
e0“Growth parameters such as plant height, stem girth and number of leaves of okra increased with added soil amendments from four weeks after planting in the order: IO > OR > MY > CT”
Claim · model-written summary
MY yielded 16.3 t ha-1 in 2010, not significantly above IO.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- 6.0 t ha-1 of MYe0
- Outcome
- mean yielde0
- Direction
- highere0
- Value
- 16.3 t ha-1e0
- Comparator
- 0.2 t ha-1 of IOe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“okra”
e0“the highest mean yield of 16.3 t ha-1 obtained with 6.0 t ha-1 of MY was not significantly higher than 15.4 t ha-1 obtained with application of 0.2 t ha-1 of IO”
Claim · model-written summary
MY yield significantly exceeded OR and CT yields in 2010.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- MYe1
- Outcome
- 13.1 and 10.4 t ha-1e0
- Direction
- highere0
- Comparator
- OR and CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“okra”
e0“not significantly higher than 15.4 t ha-1 obtained with application of 0.2 t ha-1 of IO, but significantly (p < 0.05) higher than 13.1 and 10.4 t ha-1 obtained with applications of 6.0 and zero t ha-1 of OR and CT respectively”
e1“Glomus mosseae mycorrhiza (MY)”
Claim · model-written summary
Okra productivity increased with solar radiation.
- Taxon
- okraAbelmoschus esculentust0
- Outcome
- okra productivitye0
- Setting
- solar radiatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“okra”
e0“a direct linear relationship existed between solar radiation and okra productivity”
Claim · model-written summary
The authors recommend arbuscular mycorrhizal fungi for soil fertility management of sewage sludge treated fields.
- Taxon
- okraAbelmoschus esculentust0
- Outcome
- integrated into soil fertility managemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“okra”
e0“arbuscular mycorrhizal fungi can be integrated into soil fertility management to achieve low-cost sustainable agricultural systems for enhanced productivity of okra”
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See all 32 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.