High Dry Recovery Research Articles

Studies on the Impact of Integrated Nutrient Management on Growth and Quality Parameters of Turmeric

Background: The health of the soil is negatively impacted by chemical fertilizer sources and plants are less able to absorb the readily available nutrients. The current study used several nutrition sources to reduce the negative impacts of chemical fertilizers, boost nutrient availability and preserve health. Methods: The present experiment was conducted in a field laboratory during 2017-19. 4 different manures, 3 different bio-fertilizers and graded levels of NPK were applied in the form of 13 treatments. Data on the vegetative development of turmeric plants were collected before harvesting and quality data were obtained after harvesting and some processing. Result: Vermicompost + NPK (100%) + Biofertilizers showed the highest results by considering the leaf number (23.64), tiller number (4.25) and height of plant (191.74 cm). Higher dry recovery (23.56%), oleoresin (13.48%) and curcumin content (6.16%). Alternative sources of nutrients are reducing the dose of chemical fertilizers application as well as improving the vegetative growth and quality of turmeric rhizome. In this way, we can replace 25-50% of chemical fertilizers with organic sources and enhance the soil health for plant growth and production.

Impact of Different Drying Techniques on Quality Traits of Ginger (Zingiber officinale Rosc.) Rhizomes

Under the present investigation, ginger was produced at the instruction cum research plots of the Department of Plantation Crops and Processing, Faculty of Horticulture, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal. The experiment was laid out in a factorial CRD. The study was undertaken with four ginger varieties namely Gorubathan, Suprabha, Suruchi and Suravi to evaluate the effect of different drying methods (sun drying, hot air drying at 50OC, 60oC and 70oC and microwave drying on time required for drying to a moisture content of 8 – 10% and to chemical composition (essential oil, oleoresin content and crude fiber content) of the end product. Results shown that Gorubathan variety has the highest essential oil (2.243%) and oleoresin content (14.840%) among the four varieties in this study, highest crude fiber content (5.253%) was observed in Suprabha and highest dry recovery (25.77%) was obtained from Suravi variety. In hot air drying, with increase in temperature essential oil, oleoresin and crude fiber content in dry ginger as well as dry recovery reduced.
 With high dry recovery (25.77%), essential oil (2.037%) and oleoresin content (13.510%) and moderately low crude fiber content (4.637%), it can be concluded that Suravi variety is best suitable for producing dry ginger. Apart from microwave drying, sun drying can be recommended as better practice, when hygienically conducted, based on essential oil and oleoresin content.