Abstract
Low soil nutrient availability and uptake negatively affect crop productivity in acidic soils. For example, phosphorus (P) availability is reduced by fixation of aluminium (Al) and iron (Fe) hydrous oxides and precipitation with soluble Al and Fe. In addition, soil acidity inhibits root growth, and application of agricultural lime ameliorates these challenges, thereby improving yields. However, resource-limited farmers in the Eastern Cape Province can rarely afford to procure lime and chemical fertilisers, which necessitates alternative approaches to addressing the challenge of low nutrient availability for crops. The present study explores interactions between cattle manure and mineral fertiliser applications coupled with arbuscular mycorrhizal fungi (AMF) inoculation on the agronomic performance of Amaranthus grown in acidic soil. The treatments were 100% cattle manure, 50% cattle manure + 50% NPK fertiliser and lime, 33% cattle manure + 33% NPK and lime + AMF, the recommended rate of mineral fertiliser and lime, AMF, and an absolute control. Cattle manure and mineral fertiliser application, including mixtures of their microdoses, coupled with AMF inoculation, significantly improved the growth and yield of Amaranthus species. Leaf tissue concentrations of N, P, K, Ca, Mg and Zn and their uptake, and selected residual soil properties and nutrients increased significantly following application of the treatments relative to the unfertilised control. The findings of this study imply that application of manure and mixtures of microdoses and mineral fertiliser, together with AMF, improve nutrient uptake and yield of Amaranthus and residual nutrients that benefit subsequent crops.
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Claims 4
Claim · model-written summary
Manure, mineral fertiliser and AMF treatments significantly improved Amaranthus growth and yield.
- Taxon
- Amaranthus species
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Amaranthuse0 - Treatment
- Cattle manure and mineral fertiliser application, including mixtures of their microdoses, coupled with AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- growth and yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_with_green_foliage%2C_photographed_in_Tamil_Nadu%2C_India.jpg?width=500)
Verbatim
e0“Cattle manure and mineral fertiliser application, including mixtures of their microdoses, coupled with AMF inoculation, significantly improved the growth and yield of Amaranthus species.”
Claim · model-written summary
Treatments significantly increased leaf nutrient concentrations and uptake over the unfertilised control.
- Taxon
- Amaranthus speciesAmaranthust0
- Organ / stage
- Leaf tissuee0
- Treatment
- application of the treatmentse0
- Outcome
- Leaf tissue concentrations of N, P, K, Ca, Mg and Zn and their uptakee0
- Direction
- increasede0
- Comparator
- unfertilised controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Amaranthus Species”
e0“Leaf tissue concentrations of N, P, K, Ca, Mg and Zn and their uptake, and selected residual soil properties and nutrients increased significantly following application of the treatments relative to the unfertilised control.”
Claim · model-written summary
Treatments significantly increased selected residual soil properties and nutrients over the unfertilised control.
- Taxon
- Amaranthus speciesAmaranthust0
- Treatment
- application of the treatmentse0
- Outcome
- selected residual soil properties and nutrientse0
- Direction
- increasede0
- Comparator
- unfertilised controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Amaranthus Species”
e0“Leaf tissue concentrations of N, P, K, Ca, Mg and Zn and their uptake, and selected residual soil properties and nutrients increased significantly following application of the treatments relative to the unfertilised control.”
Claim · model-written summary
The authors infer that manure, fertiliser microdoses and AMF benefit subsequent crops through residual nutrients.
- Taxon
- AmaranthusAmaranthuse0
- Treatment
- application of manure and mixtures of microdoses and mineral fertiliser, together with AMFe0
- Outcome
- residual nutrients that benefit subsequent cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The findings of this study imply that application of manure and mixtures of microdoses and mineral fertiliser, together with AMF, improve nutrient uptake and yield of Amaranthus and residual nutrients that benefit subsequent crops.”
The same questions in other papers
fertilization · yield · AmaranthusPositive and negative results
25 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
23 papers more in this group
See all 27 papers →inoculation · yield · AmaranthusResults agree
2 papers in the same direction as this paper
- positive
- positive
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.