Abstract
Mining is an important economic activity that promotes income generation, job creation, and industrialization globally. In spite its economic importance, it is classified as land degradation form that disrupts natural ecosystem through loss of biota and soil health. Paucity of information regarding the performance of reclaimed mined soils in supporting crop production abound in Kenya. To contribute to this knowledge gap, a study was conducted at Base titanium limited -Kwale to investigate the response of performance of bulb onions (red creole onion variety) to farmyard manure and inorganic fertilizer application on post mined soils. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replicates Treatments included: inorganic fertilizer, farmyard manure, inorganic fertilizer +farmyard manure and control. Obtained data that included: soil characterization, onion growth and yield parameters was subjected to analysis of variance (ANOVA) using R packages and means separated using the Fisher’s protected least significant difference (LSD) at (P≤0.05). Results showed that the soils had low TN, exchangeable P, K, S, Bo and Cu levels. Manure+ fertilizer significantly (P≤0.05) increased plant height by 38%, bulb diameter by 44%, neck thickness by 19.5% total bulb yield by 89% and marketable yield by 88% compared to control. A significant positive relationship between manure, fertilizer, fertilizer+ manure with plant height, number of leaves, bulb diameter, neck thickness and total yield was observed indicating that manure + fertilizer can support optimal onion production in these post mined soils. Further research is however, required to ascertain production approaches that promote sustainable soil development and onion yield.
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Claims 7
Claim · model-written summary
Manure plus fertilizer increased onion plant height by 38% versus control.
- Taxon
- Onion
Allium cepat1 - Treatment
- Manure+ fertilizere0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 38%e0
- Comparator
- controle0
- Setting
- Titanium Mined Soilst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manure+ fertilizer significantly (P≤0.05) increased plant height by 38%, bulb diameter by 44%, neck thickness by 19.5% total bulb yield by 89% and marketable yield by 88% compared to control.”
t0“Titanium Mined Soils”
t1“Onion”
Claim · model-written summary
Manure plus fertilizer increased onion bulb diameter by 44% versus control.
- Taxon
- OnionAllium cepat1
- Treatment
- Manure+ fertilizere0
- Outcome
- bulb diametere0
- Direction
- increasede0
- Value
- 44%e0
- Comparator
- controle0
- Setting
- Titanium Mined Soilst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manure+ fertilizer significantly (P≤0.05) increased plant height by 38%, bulb diameter by 44%, neck thickness by 19.5% total bulb yield by 89% and marketable yield by 88% compared to control.”
t0“Titanium Mined Soils”
t1“Onion”
Claim · model-written summary
Manure plus fertilizer increased onion neck thickness by 19.5% versus control.
- Taxon
- OnionAllium cepat1
- Treatment
- Manure+ fertilizere0
- Outcome
- neck thicknesse0
- Direction
- increasede0
- Value
- 19.5%e0
- Comparator
- controle0
- Setting
- Titanium Mined Soilst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manure+ fertilizer significantly (P≤0.05) increased plant height by 38%, bulb diameter by 44%, neck thickness by 19.5% total bulb yield by 89% and marketable yield by 88% compared to control.”
t0“Titanium Mined Soils”
t1“Onion”
Claim · model-written summary
Manure plus fertilizer increased onion total bulb yield by 89% versus control.
- Taxon
- OnionAllium cepat1
- Treatment
- Manure+ fertilizere0
- Outcome
- total bulb yielde0
- Direction
- increasede0
- Value
- 89%e0
- Comparator
- controle0
- Setting
- Titanium Mined Soilst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manure+ fertilizer significantly (P≤0.05) increased plant height by 38%, bulb diameter by 44%, neck thickness by 19.5% total bulb yield by 89% and marketable yield by 88% compared to control.”
t0“Titanium Mined Soils”
t1“Onion”
Claim · model-written summary
Manure plus fertilizer increased onion marketable yield by 88% versus control.
- Taxon
- OnionAllium cepat1
- Treatment
- Manure+ fertilizere0
- Outcome
- marketable yielde0
- Direction
- increasede0
- Value
- 88%e0
- Comparator
- controle0
- Setting
- Titanium Mined Soilst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manure+ fertilizer significantly (P≤0.05) increased plant height by 38%, bulb diameter by 44%, neck thickness by 19.5% total bulb yield by 89% and marketable yield by 88% compared to control.”
t0“Titanium Mined Soils”
t1“Onion”
Claim · model-written summary
Mined soils had low nutrient levels.
- Taxon
- OnionAllium cepat0
- Outcome
- TN, exchangeable P, K, S, Bo and Cu levelse0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soils had low TN, exchangeable P, K, S, Bo and Cu levels.”
t0“Onion”
Claim · model-written summary
Manure and fertilizer had a positive relationship with onion growth and yield traits.
- Taxon
- onionAllium cepat0
- Treatment
- manure, fertilizer, fertilizer+ manuree0
- Outcome
- plant height, number of leaves, bulb diameter, neck thickness and total yielde0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant positive relationship between manure, fertilizer, fertilizer+ manure with plant height, number of leaves, bulb diameter, neck thickness and total yield was observed”
t0“onion”
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