Abstract
Composts are recognised as an important source of nutrients for crops. The study aims to valorise agricultural by-products by composts made from broiler (A), laying hen (B) and bovine (C) manures in soilless tomato cultivation. Treatments consisted of these three composts and controls consisting of coconut fibres fed with a nutrient solution. The system is a randomised Fisher block with three replications. Each elementary plot consisted of nine tomato plants. Chemical parameters of the substrates and agronomic parameters of the plants were recorded from 14 to 49 days after transplanting (DAT). The pH stabilised at around 6.2 after varying from 7.1 to 8.0 in the composts. The high electrical conductivity (5.9 - 6.01 dS/m) was less than 1 dS/m at 49 DAT. Agromorphological parameters were close to the controls. Fruit necrosis was higher in the compost-based substrates (13.75% - 32.22%) than in the controls (<2%). Healthy fruit yields from the composts (38.7 - 48.7 t/ha) were high, although lower than those from the controls (49.9 - 57.4 t/ha). Fruit harvested from these substrates had a longer average shelf life (38.23 days) than the controls (28.5 days). This study showed that composts have fertilising properties for soilless tomato cultivation, in particular that of laying hen manure (48.33 t/ha). These composts could provide an alternative to the use of chemical fertilisers in soilless tomato cultivation.
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Claims 8
Claim · model-written summary
Compost pH stabilized around 6.2 after initially varying from 7.1 to 8.0.
- Taxon
- tomato
Solanum lycopersicumt0 - Outcome
- pHe0
- Value
- 6.2e0
- Qualifier
- 7.1 to 8.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pH stabilised at around 6.2 after varying from 7.1 to 8.0 in the composts”
t0“tomato”
Claim · model-written summary
Compost electrical conductivity fell from 5.9 - 6.01 dS/m to below 1 dS/m at 49 DAT.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- electrical conductivitye0
- Value
- less than 1 dS/me0
- Qualifier
- 5.9 - 6.01 dS/me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The high electrical conductivity (5.9 - 6.01 dS/m) was less than 1 dS/m at 49 DAT”
t0“tomato”
Claim · model-written summary
Agromorphological parameters under compost were close to controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- Agromorphological parameterse0
- Direction
- close toe0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agromorphological parameters were close to the controls”
t0“tomato”
Claim · model-written summary
Compost substrates had more fruit necrosis, 13.75% - 32.22%, than controls below 2%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- compost-based substratese0
- Outcome
- Fruit necrosise0
- Direction
- highere0
- Value
- 13.75% - 32.22%e0
- Qualifier
- <2%e0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit necrosis was higher in the compost-based substrates (13.75% - 32.22%) than in the controls (<2%)”
t0“tomato”
Claim · model-written summary
Compost substrates produced lower healthy fruit yields, 38.7 - 48.7 t/ha, than controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- compostse0
- Outcome
- Healthy fruit yieldse0
- Direction
- lowere0
- Value
- 38.7 - 48.7 t/hae0
- Qualifier
- 49.9 - 57.4 t/hae0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Healthy fruit yields from the composts (38.7 - 48.7 t/ha) were high, although lower than those from the controls (49.9 - 57.4 t/ha)”
t0“tomato”
Claim · model-written summary
Compost-grown fruit had longer average shelf life, 38.23 days versus 28.5 days.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- compost-based substratese1
- Outcome
- average shelf lifee0
- Direction
- longere0
- Value
- 38.23 dayse0
- Qualifier
- 28.5 dayse0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit harvested from these substrates had a longer average shelf life (38.23 days) than the controls (28.5 days)”
e1“compost-based substrates”
t0“tomato”
Claim · model-written summary
Laying-hen manure compost yielded 48.33 t/ha.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- laying hen manuree0
- Outcome
- laying hen manuree0
- Value
- 48.33 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“laying hen manure (48.33 t/ha)”
t0“Tomato”
Claim · model-written summary
The authors suggest compost as an alternative fertilizer for soilless tomato cultivation.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- alternative to the use of chemical fertiliserse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These composts could provide an alternative to the use of chemical fertilisers in soilless tomato cultivation”
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