Abstract
In newly reclaimed sandy soil, green house experiments have been conducted in N.R.C. to evaluate the beneficial effect of coating soluble fertilizer (urea and ammonium nitrate) with insoluble materials (rock phosphate, pentonite and elemental sulpher) on growth and chemical constituents of Cymbopogon citratus. Results showed that the maximum values for plant height, no. of tillers, fresh and dry weights of herbage were obtained with rock phosphate coated urea, while the minimum values were recorded with uncoated nitrogen fertilizer and control. The content of chlorophyll a, b, carotenoids, total carbohydrates, soluble sugars and phenolic compound were increased with slow release nitrogen fertilizer. The essential oil percent was the highest with rock phosphate coated urea which gave 48.28 and 61.54 % higher over uncoated urea in the first and second cut respectively. Variable effects (ascending or descending) were noticed in the content of some components of lemongrass oil as affected with slow release and conventional nitrogen fertilizers. The main compounds of lemongrass oil (neral, geranial and citronellol represented about 80 % of the essential oil. The application of sulphur and pentonite coated urea caused a depression in neral and geranial in the same time gave the greatest increase in citronellol and neryl acetate, Moreover the maximum relative concentration of myrcene (3.84 %), limonen (9.39 %) and linalool (4.46 %) were recorded from applied urea as rock phosphate coated urea compared with other treatments and control. The macronutrients (N, P, K and S) and micronutrients (Fe and Zn) status were increased with slow release nitrogen fertilizer. It might be concluded that, the application of slow release nitrogen fertilizer had the beneficial effect for increasing plant growth and chemical constituents as compared with conventional nitrogen fertilizers, and the most effective treatment was urea coated with rock phosphate.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 14
Claim · model-written summary
Rock phosphate coated urea maximized height, tillers, and herbage weights.
- Taxon
- Cymbopogon citratus
Cymbopogon citratust0 - Treatment
- rock phosphate coated ureae0
- Outcome
- plant height, no. of tillers, fresh and dry weights of herbagee0
- Direction
- maximume0
- Comparator
- uncoated nitrogen fertilizer and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maximum values for plant height, no. of tillers, fresh and dry weights of herbage were obtained with rock phosphate coated urea, while the minimum values were recorded with uncoated nitrogen fertilizer and control”
t0“Cymbopogon citratus”
Claim · model-written summary
Slow release nitrogen fertilizer increased chlorophyll pigments.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- slow release nitrogen fertilizere0
- Outcome
- chlorophyll a, b, carotenoidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of chlorophyll a, b, carotenoids, total carbohydrates, soluble sugars and phenolic compound were increased with slow release nitrogen fertilizer.”
t0“Cymbopogon citratus”
Claim · model-written summary
Slow release nitrogen fertilizer increased carbohydrate, sugar and phenolic content.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- slow release nitrogen fertilizere0
- Outcome
- total carbohydrates, soluble sugars and phenolic compounde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of chlorophyll a, b, carotenoids, total carbohydrates, soluble sugars and phenolic compound were increased with slow release nitrogen fertilizer.”
t0“Cymbopogon citratus”
Claim · model-written summary
Rock phosphate coated urea gave the highest essential oil percentage, 48.28% above uncoated urea at first cut.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- rock phosphate coated ureae0
- Outcome
- essential oil percente0
- Direction
- highere0
- Value
- 48.28e0
- Comparator
- uncoated ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The essential oil percent was the highest with rock phosphate coated urea which gave 48.28 and 61.54 % higher over uncoated urea in the first and second cut respectively.”
t0“Cymbopogon citratus”
Claim · model-written summary
Rock phosphate coated urea gave essential oil percentage 61.54% above uncoated urea at second cut.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Organ / stage
- second cute0
- Treatment
- rock phosphate coated ureae0
- Outcome
- essential oil percente0
- Direction
- highere0
- Value
- 61.54 %e0
- Comparator
- uncoated ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The essential oil percent was the highest with rock phosphate coated urea which gave 48.28 and 61.54 % higher over uncoated urea in the first and second cut respectively.”
t0“Cymbopogon citratus”
Claim · model-written summary
Neral, geranial and citronellol comprised about 80% of essential oil.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Outcome
- neral, geranial and citronellole0
- Value
- 80 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neral, geranial and citronellol represented about 80 % of the essential oil”
t0“Cymbopogon citratus”
Claim · model-written summary
Sulphur and pentonite coated urea depressed neral and geranial.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- sulphur and pentonite coated ureae0
- Outcome
- neral and geraniale0
- Direction
- depressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of sulphur and pentonite coated urea caused a depression in neral and geranial”
t0“Cymbopogon citratus”
Claim · model-written summary
Sulphur and pentonite coated urea increased citronellol and neryl acetate most.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- sulphur and pentonite coated ureae0
- Outcome
- citronellol and neryl acetatee0
- Direction
- greatest increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of sulphur and pentonite coated urea caused a depression in neral and geranial in the same time gave the greatest increase in citronellol and neryl acetate”
t0“Cymbopogon citratus”
Claim · model-written summary
Rock phosphate coated urea yielded maximum myrcene concentration of 3.84%.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- rock phosphate coated ureae0
- Outcome
- myrcenee0
- Direction
- maximume0
- Value
- 3.84 %e0
- Comparator
- other treatments and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum relative concentration of myrcene (3.84 %), limonen (9.39 %) and linalool (4.46 %) were recorded from applied urea as rock phosphate coated urea compared with other treatments and control”
t0“Cymbopogon citratus”
Claim · model-written summary
Rock phosphate coated urea yielded maximum limonen concentration of 9.39%.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- rock phosphate coated ureae0
- Outcome
- limonene0
- Direction
- maximume0
- Value
- 9.39 %e0
- Comparator
- other treatments and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum relative concentration of myrcene (3.84 %), limonen (9.39 %) and linalool (4.46 %) were recorded from applied urea as rock phosphate coated urea compared with other treatments and control”
t0“Cymbopogon citratus”
Claim · model-written summary
Rock phosphate coated urea yielded maximum linalool concentration of 4.46%.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- rock phosphate coated ureae0
- Outcome
- linaloole0
- Direction
- maximume0
- Value
- 4.46 %e0
- Comparator
- other treatments and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum relative concentration of myrcene (3.84 %), limonen (9.39 %) and linalool (4.46 %) were recorded from applied urea as rock phosphate coated urea compared with other treatments and control”
t0“Cymbopogon citratus”
Claim · model-written summary
Slow release nitrogen fertilizer increased plant macronutrient status.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- slow release nitrogen fertilizere0
- Outcome
- macronutrients (N, P, K and S)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The macronutrients (N, P, K and S) and micronutrients (Fe and Zn) status were increased with slow release nitrogen fertilizer.”
t0“Cymbopogon citratus”
Claim · model-written summary
Slow release nitrogen fertilizer increased plant micronutrient status.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Treatment
- slow release nitrogen fertilizere0
- Outcome
- micronutrients (Fe and Zn) statuse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The macronutrients (N, P, K and S) and micronutrients (Fe and Zn) status were increased with slow release nitrogen fertilizer.”
t0“Cymbopogon citratus”
Claim · model-written summary
Authors identify rock phosphate coated urea as the most effective fertilizer treatment.
- Taxon
- Cymbopogon citratusCymbopogon citratust0
- Outcome
- urea coated with rock phosphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most effective treatment was urea coated with rock phosphate”
t0“Cymbopogon citratus”
The same questions in other papers
fertilization · physiology: pigments · Cymbopogon citratus (lemon grass)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
phosphorus · yield · Cymbopogon citratus (lemon grass)Results agree
1 paper in the same direction as this paper
- positive
fertilization · molecular: metabolites · Cymbopogon citratus (lemon grass)Results agree
1 paper in the same direction as this paper
- positive
fertilization · nutrient: content · Cymbopogon citratus (lemon grass)Results agree
2 papers in the same direction as this paper
- positive
- positive
nitrogen · yield · Cymbopogon citratus (lemon grass)Results agree
11 papers in the same direction as this paper
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →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.