STUDIES ON THE EFFECT OF FERTILIZER LEVELS AND PLANT DENSITIES ON GROWTH AND YIELD OF AMBRETTE (ABELMOSCHUS MOSCHATUS MEDIC.)
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Date
2012-05
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Dr. Y. S. R HORTICULTURAL UNIVERSITY
Abstract
A field experiment, “Studies on the effect of fertilizer levels and plant densities on growth and yield of ambrette (Abelmoschus moschatus Medic.) was conducted at Herbal Garden, College of Horticulture, Dr. Y. S. R Horticultural University, Rajendranagar, Hyderabad during the year 2010-2011. The experiment was laid out in split plot design with nine treatments and replicated four times.
The treatment consisted of (T1)- 50 × 30 cm + N P K at 75: 50: 40 kg per ha, (T2)- 50 × 30 cm + N P K at 100: 50: 50 kg per ha, (T3)- 50 × 30 cm + N P K at 125: 50: 60 kg per ha, (T4)- 50 × 40 cm + N P K at 75: 50: 40 kg per ha, (T5)- 50 × 40 cm + N P K at 100: 50: 50 kg per ha, (T6)- 50 × 40 cm + N P K at 125: 50: 60 kg per ha, (T7)- 50 × 50 cm + N P K at 75: 50: 40 kg per ha, (T8)- 50 × 50 cm + N P K at 100: 50: 50 kg per ha, (T9)- 50 × 50 cm + N P K at 125: 50: 60 kg per ha.
The results of the experiment revealed that the maximum plant height and internodal length was recorded with fertilizer dose of N P and K at 125: 50: 60 kg per ha. A spacing of 50 × 30 cm recorded maximum plant height and internodal length. The interaction of spacing of 50 × 30 cm and fertilizer dose of 125: 50:60 kg per ha recorded maximum plant height and internodal length.
The leaf area was maximum at a spacing of 50 × 50 cm. A fertilizer dose of N P and K at 100: 50: 50 kg per ha recorded maximum leaf area. Interaction of fertilizer level of N P K at 100: 50: 50 kg per ha and a spacing at 50 × 50 cm recorded maximum leaf area.
The dry matter production recorded maximum at a spacing of 50 × 50 cm. A fertilizer dose of N P K at 125: 50: 60 kg per ha recorded maximum dry matter production. Interaction of fertilizer level of N P K at 125: 50: 60 kg per ha and a spacing at 50 × 50 cm recorded maximum dry matter production.
Days to initiation of flowering and days to 50 per cent flowering were minimum at a spacing of 50 × 30 cm. A fertilizer dose of N P K at 100: 50: 50 kg per ha recorded minimum days to initiation of flowering and days to 50 per cent flowering. Interaction of spacing of 50 × 30 cm and fertilizer dose of N P K at 100: 50: 50 kg per ha recorded minimum days to initiation of flowering and days to 50 per cent flowering.
Number of seeds per pod and seed weight per pod was maximum at a spacing of 50 × 50 cm. A fertilizer dose of N P K at 125: 50: 60 kg per ha recorded maximum number of seeds per pod and seed weight per pod. Interaction of spacing of 50 × 50 cm and fertilizer dose of N P K at 125: 50: 60 kg per ha recorded maximum number of seeds per pod and seed weight per pod.
Seed yield per plant and were recorded to be maximum at a spacing of 50 × 50 cm. A fertilizer dose of N P K at 100: 50: 50 kg per ha recorded maximum seed yield per plant and seed yield per ha.
Seed yield per plot and seed yield per ha was maximum at a spacing of 50 × 30 cm. A fertilizer dose of N P K at 100: 50: 50 kg per ha recorded maximum seed yield per plot and seed yield per ha. Interaction of fertilizer levels of N P K at 100: 50: 50 kg per ha and a spacing of 50 × 30 cm recorded maximum seed yield per plot and seed yield per ha.
Oil content was maximum at a spacing of 50 × 30 cm. A fertilizer dose of N P K at 100: 50: 50 kg per ha recorded maximum oil content (%). Interaction of fertilizer levels of N P K at 100: 50: 50 kg per ha and a spacing of 50 × 30 cm recorded maximum oil content.
The nitrogen content in leaves was maximum at a spacing of 50 × 50 cm. A fertilizer dose of N P K at 100: 50: 50 kg per ha recorded maximum nitrogen content. Interaction of fertilizer levels of N P K at 100: 50: 50 kg per ha and a spacing of 50 × 50 cm recorded maximum nitrogen content in leaves after harvest.
The phosphorus content in leaves was maximum at a spacing of 50 × 50 cm. A fertilizer dose of N P K at 100: 50: 50 kg per ha recorded maximum phosphorus content. Interaction of fertilizer levels of N P K at 100: 50: 50 kg per ha and a spacing of 50 × 40 cm recorded maximum phosphorus content in leaves after harvest.
The potassium content in leaves was maximum at a spacing of 50 × 50 cm. A fertilizer dose of N P K at 100: 50: 50 kg per ha recorded maximum potassium content. Interaction of fertilizer levels of N P K at 100: 50: 50 kg per ha and a spacing of 50 × 50 cm recorded maximum potassium content in leaves after harvest.
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Keywords
internodal length ,leaf area,dry matter production,