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2017

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Ghosh, S. K.

Lemon Cv. Assam Lemon (Citrus limon Burm.) Quality and Soil-Leaf Nutrient Availability Affected by Different Pruning Intensities and Nutrient Management

Abstract Views :291 | PDF Views:89

Authors

Arkendu Ghosh ¹, K. Dey ¹, N. Bhowmick ², S. K. Ghosh ², S. Bandyopadhyay ³, P. S. Medda ⁴, A. Ghosh ⁵

Affiliations
1 Department of Fruits and Orchard Management, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741 252, IN
2 Department of Pomology and Post Harvest Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
3 Department of Agronomy, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
4 Department of Plantation Crops and Processing, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
5 Department of Agricultural Statistics, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN

Source

Current Science, Vol 112, No 10 (2017), Pagination: 2051-2065

Abstract

A field experiment was laid out in two factorial randomized block design with four levels of pruning and seven levels of nutrients, consisting recommended dose of fertilizers and different combinations of organic manure (vermicompost), inorganic fertilizer, bio-fertilizer (azotobacter), mycorrhiza (VAM) and their interaction between 2013 and 2015 on 9-year-old lemon plants. Studies revealed that all physicochemical parameters, viz. fruit weight, puncture force, total soluble solid, total sugar, ascorbic acid were highest in (P3N4) combination of higher level of pruning. However, the maximum availability of leaf and soil nutrients was recorded in N₄.

Keywords

Lemon, Nutrient Management, Pruning, Soil-Leaf Nutrient Availability, Yield and Quality.

Full Text

References

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Shukla, S. K., Adak, T., Singha, A., Kumar, K., Singh, V. K. and Singh, A., Response of guava trees (Psidium guajava) to soil application of mineral and organic fertilizer and biofertilizers under conditions of low fertile soil. J. Hortic. Res., 2014, 22, 105–114.

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Ultraviolet Imaging Telescope on AstroSat

Abstract Views :246 | PDF Views:81

Authors

S. N. Tandon ¹, S. K. Ghosh ², J. Hutchings ³, C. S. Stalin ¹, A. Subramaniam ¹

Affiliations
1 Indian Institute of Astrophysics, Bengaluru 560 034, IN
2 National Centre for Radio Astrophysics, Ganeshkhind, Pune 411 007, IN
3 Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, B.C. V9E 2E7, CA

Source

Current Science, Vol 113, No 04 (2017), Pagination: 583-586

Abstract

The AstroSat satellite is designed for multi-wavelength astronomy for observations covering a spectral range from soft and hard X-rays to the ultraviolet. The Ultraviolet Imaging Telescope (UVIT) is the only non-X-ray telescope on AstroSat and it provides the long lever arm to the multi-wavelength observations. In addition to the simultaneous multi-wavelength studies in coordination with the X-ray telescopes on-board AstroSat, UVIT is used to study a large variety of objects with arcsecond-level spatial resolution. During the first year of observations, UVIT has obtained images in many filter bands in the wavelength range 130-300 nm over a field of ~28', which are being used to study a variety of hot stars, nebulae, stellar clusters and galaxies.

Keywords

Multi-Wavelength Astronomy, Ultraviolet Imaging Telescope, X-Ray Telescope.

Full Text

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The Upgraded GMRT:Opening New Windows on the Radio Universe

Abstract Views :234 | PDF Views:77

Authors

Y. Gupta ¹, B. Ajithkumar ¹, H. S. Kale ¹, S. Nayak ¹, S. Sabhapathy ¹, S. Sureshkumar ¹, R. V. Swami ¹, J. N. Chengalur ¹, S. K. Ghosh ¹, C. H. Ishwara-Chandra ¹, B. C. Joshi ¹, N. Kanekar ¹, D. V. Lal ¹, S. Roy ¹

Affiliations
1 National Centre for Radio Astrophysics-TIFR, Pune University Campus, Pune 411 007, IN

Source

Current Science, Vol 113, No 04 (2017), Pagination: 707-714

Abstract

The Giant Metrewave Radio Telescope (GMRT) is today a frontline international facility for low-frequency radio astronomy, that has produced several exciting and important new results in the 15 years that it has been operational. To keep the GMRT competitive in the global arena in the future, a major upgrade of the observatory is nearing completion that will increase its sensitivity by up to three times and make it a more powerful and versatile facility. We describe the main goals of this upgrade, highlight the technical features and challenges, outline the science potential and update the current status of this venture.

Keywords

Radio Telescope, Upgrade, Scientific Potential, Technical Challenges.

Full Text

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