Abstract
Abstract Background and aims Biostimulants of natural origin represent a growing ecological strategy to increase crops productivity, especially when applied in combination with microbial bioeffectors. We studied the effect of biostimulants such as Potassium Humates (KH) from Leonardite and Compost Tea (CT) from green compost on both productivity and nutritional status of lettuce plants, as well as on the primary and secondary metabolism of treated plants, when amended either alone or in combination with a commercial microbial inoculum (M+), mainly based on arbuscular mycorrhizal fungi (Micosat TabPlus). Results The biomass production as well as the uptake of both macro- and micronutrients by lettuce plants significantly increased when amended by the mixture of both humic materials (MIX) combined with the microbial inoculum. Similarly, the synergic MIX_M+ treatment significantly affected both the primary and secondary metabolism of lettuce more than their individual applications, by increasing, respectively, the biosynthesis of essential amino acids and carbohydrates, and that of antioxidant polyphenolic compounds, such as hydroxycinnamic acids, flavonols and coumarins. Conclusions Our findings suggest that a calibrated mixture of humic bioactive molecules in combination with microbial consortia represents a potential tool to improve crop productivity and its nutritional and metabolic status.
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Claims 5
Claim · model-written summary
Lettuce biomass production significantly increased with the humic MIX combined with the microbial inoculum.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- the mixture of both humic materials (MIX) combined with the microbial inoculume1
- Interactor
- arbuscular mycorrhizal fungie2symbiont
- Outcome
- biomass productione1
- Direction
- significantly increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The biomass production as well as the uptake of both macro- and micronutrients by lettuce plants significantly increased when amended by the mixture of both humic materials (MIX) combined with the microbial inoculum”
e2“commercial microbial inoculum (M+), mainly based on arbuscular mycorrhizal fungi”
Claim · model-written summary
Lettuce uptake of macro- and micronutrients significantly increased with the humic MIX combined with the microbial inoculum.
- Taxon
- lettuceLactuca sativae1
- Treatment
- the mixture of both humic materials (MIX) combined with the microbial inoculume1
- Interactor
- arbuscular mycorrhizal fungie2symbiont
- Outcome
- uptake of both macro- and micronutrientse1
- Direction
- significantly increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The biomass production as well as the uptake of both macro- and micronutrients by lettuce plants significantly increased when amended by the mixture of both humic materials (MIX) combined with the microbial inoculum”
e2“commercial microbial inoculum (M+), mainly based on arbuscular mycorrhizal fungi”
Claim · model-written summary
The MIX_M+ treatment increased biosynthesis of essential amino acids and carbohydrates in lettuce more than the individual applications.
- Taxon
- lettuceLactuca sativae1
- Treatment
- MIX_M+ treatmente1
- Outcome
- biosynthesis of essential amino acids and carbohydratese1
- Direction
- increasinge1
- Comparator
- their individual applicationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the synergic MIX_M+ treatment significantly affected both the primary and secondary metabolism of lettuce more than their individual applications, by increasing, respectively, the biosynthesis of essential amino acids and carbohydrates, and that of antioxidant polyphenolic compounds, such as hydroxycinnamic acids, flavonols and coumarins”
Claim · model-written summary
The MIX_M+ treatment increased antioxidant polyphenolic compounds (hydroxycinnamic acids, flavonols, coumarins) in lettuce more than the individual applications.
- Taxon
- lettuceLactuca sativae1
- Treatment
- MIX_M+ treatmente1
- Outcome
- antioxidant polyphenolic compoundse1
- Direction
- increasinge1
- Comparator
- their individual applicationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the synergic MIX_M+ treatment significantly affected both the primary and secondary metabolism of lettuce more than their individual applications, by increasing, respectively, the biosynthesis of essential amino acids and carbohydrates, and that of antioxidant polyphenolic compounds, such as hydroxycinnamic acids, flavonols and coumarins”
Claim · model-written summary
A calibrated mixture of humic bioactive molecules with microbial consortia is a potential tool to improve crop productivity and nutritional and metabolic status.
- Taxon
- lettuceLactuca sativat0
- Outcome
- improve crop productivity and its nutritional and metabolic statuse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e1“a calibrated mixture of humic bioactive molecules in combination with microbial consortia represents a potential tool to improve crop productivity and its nutritional and metabolic status”
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