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VOL. 7, ISSUE 4 (2025)
Effect of various nitrogen fertilizer doses on essential oil yield and chemical composition of rose-scented geranium (Pelargonium Graveolens L.)
Authors
Pragya Pandey, RK Upadhyay, RC Padalia
Abstract
Soil is deteriorating in terms of loss of fertility, organic matter,
and production potential. The poor management of agriculture, agrochemicals,
and other environmental issues, all contribute to the loss of nutrient-rich
soil (top layer) and puts agriculture output in jeopardy. This experiment aims
to ascertain the appropriate macronutrient (NPK) concentrations that can
considerably enhance the development and production of a chosen aromatic plant.
Pelargonium graveolens was planted for this study and collected three times
throughout the course of the growing season. There are four different nitrogen
dosage treatments in the experiment: T1 (control), T2 (80:80:60 kg NPK ha-1),
T3 (100:80:60 kg NPK ha-1), and T4 (120:80:60 kg NPK ha-1).The results revealed
a substantial relationship between nitrogen dosages and harvesting time in T3
(100:80:60) with maximumincrease of 11.44% in biomass (1130.82 q ha-1),
11.76% in essential oil content (0.19%), and 26.01% in oil yield (219.79kg ha-1).
The lowest oil output (173.79 kg ha-1) and herb yield (1014.71 q ha-1)
were noted in T1 (control), which lacked any nutrients. The
increased nitrogen dose in T4 has a favorable effect
solely on plant height (103.60 cm), although T4 has the second-lowest herb
yield and oil output after control. When compared to control, the nitrogen dose
(80:80:60 @ NPK) in T2 has a moderate effect, increasing plant growth, herb
production, and oil yield by 6.42, 9.45, and 15.75%, respectively. A
considerable impact of nitrogen treatment on the ratio of citronellol and
geraniol was revealed by chemical analysis of the essential oil. Therefore,
using the right amount of nitrogen fertilizer had an impact on biomass
production, the components of essentialoils, and plant development. It also had
the potential to maintain the soil's qualities when used in conjunction with
improved agronomic management strategies.
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Pages:124-130
How to cite this article:
Pragya Pandey, RK Upadhyay, RC Padalia "Effect of various nitrogen fertilizer doses on essential oil yield and chemical composition of rose-scented geranium<i> </i>(<i>Pelargonium Graveolens</i> L.)". International Journal of Agriculture and Plant Science, Vol 7, Issue 4, 2025, Pages 124-130
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