Abstract
Nowadays, there is excessive use of chemical fertilizers to reach high crop productivity withoutconsidering its environmental negative impacts. The aim of this study was to estimate the effect of partial replacement of mineral fertilizers with biofertilizer (yeast) on growth, yield and essential oil content of lemongrass (Cymbopogon citratus (DC.) Stapf). The experiment was carried out during 2018 and 2019 seasons at the Agricultural Experimental Farm, Faculty of Agriculture and Natural Resources, Aswan University, Sahary, Aswan, Egypt. The results showed a variation in the plants response to reducing mineral fertilizer and replacing it with yeast. There were significant decreases in tillers number and fresh biomass of the plant, while the decreases were less in the dry biomass of plants, leaf greenness, as well as the essential oil yield. On the other hand, the oil percentage was not affected by the decrease in the amount of mineral fertilizer. From these results, it is recommended for sustainable agriculture that strikes a balance between productivity and environmental considerations, reducing mineral fertilizer to 50-75% NPK combined with bio-fertilizer.
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Claims 4
Claim · model-written summary
Reduced mineral fertilizer with yeast significantly decreased lemongrass tiller number and fresh biomass.
- Taxon
- lemongrass
Cymbopogon citratuse0 - Treatment
- partial replacement of mineral fertilizers with biofertilizer (yeast)e0
- Outcome
- tillers number and fresh biomasse1
- Direction
- decreasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“partial replacement of mineral fertilizers with biofertilizer (yeast) on growth, yield and essential oil content of lemongrass (Cymbopogon citratus (DC.) Stapf)”
e1“There were significant decreases in tillers number and fresh biomass of the plant”
Claim · model-written summary
Reduced mineral fertilizer with yeast caused smaller declines in dry biomass, leaf greenness, and essential oil yield.
- Taxon
- lemongrassCymbopogon citratuse0
- Treatment
- partial replacement of mineral fertilizers with biofertilizer (yeast)e0
- Outcome
- dry biomass of plants, leaf greenness, as well as the essential oil yielde1
- Direction
- decreases were lesse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“partial replacement of mineral fertilizers with biofertilizer (yeast) on growth, yield and essential oil content of lemongrass (Cymbopogon citratus (DC.) Stapf)”
e1“the decreases were less in the dry biomass of plants, leaf greenness, as well as the essential oil yield”
Claim · model-written summary
Decreasing mineral fertilizer did not affect lemongrass oil percentage.
- Taxon
- lemongrassCymbopogon citratuse0
- Treatment
- decrease in the amount of mineral fertilizere1
- Outcome
- oil percentagee1
- Direction
- not affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lemongrass (Cymbopogon citratus (DC.) Stapf)”
e1“the oil percentage was not affected by the decrease in the amount of mineral fertilizer”
Claim · model-written summary
The authors recommend 50–75% mineral NPK combined with biofertilizer for sustainable lemongrass production.
- Taxon
- lemongrassCymbopogon citratuse0
- Outcome
- reducing mineral fertilizer to 50-75% NPK combined with bio-fertilizere1
- Value
- 50-75% NPKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lemongrass (Cymbopogon citratus (DC.) Stapf)”
e1“it is recommended for sustainable agriculture that strikes a balance between productivity and environmental considerations, reducing mineral fertilizer to 50-75% NPK combined with bio-fertilizer”
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