Thumbnail Image

Theses

Browse

20081
Reset filters
Subject: Horticulture × Author: Meghana, Davis × End date: 2008 × Start date: 2008 ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Integrated nutrient management in dendrobiums
    (College of Horticulture, Vellanikkara, 2008) Meghana, Davis; KAU; Jyothi, Bhaskar
    Studies on “Integrated nutrient management in dendrobiums” were carried out in the orchidarium of All India Co-ordinated Floriculture Improvement Project in the Department of Pomology and Floriculture, College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur during the period from March 2005 to June 2007. The study was conducted using two Dendrobium varieties, Earsakul and Shavin White, with the main objective of determining the effect of organic manures on growth and flowering in Dendrobium in combination with inorganic fertilizers. The inorganic nutrients NPK were applied twice weekly @ 0.2 % concentration along with fermented farmyard manure (1:10) fortnightly as recommended dose for control. The organic manures like panchagavya, Manchurian tea and vermiwash were applied at fortnightly interval as treatments along with 50% of the recommended dose. Results revealed that, different treatments involving combinations of organic manures and inorganic fertilizers highly influenced the growth characters of the plant. The plant height obtained was the highest for the treatment which received 50% recommended dose along with 3 % vermiwash. This treatment also improved vegetative characters like number of leaves per plant, number of leafy shoots, girth of shoots and internodal length. Plants which received only NPK 30:10:10 @ 0.2% along with FYM (1:10) came to flowering early. Number of spikes per plant, colour, and size of the flower and longevity of spike on plant were not found to be influenced by fertilizer application. Significant incidence of pests and diseases were not noticed during the period of study. From this trial conducted, an indication was obtained that, vermiwash application increased the growth parameters in orchid plants. The treatment T8, receiving 3 % vermiwash and 3 % panchagavya along with inorganic fertilizers (0.1 %) and FYM produced more large flowers than others. Maximum numbers of flowers per spike was also obtained for T8. Longest spike (21.58 cm & 20.05 cm) were obtained for the treatment receiving 30:10:10 NPK @ 0.1 % along with 3 % vermiwash and FYM in both Earsakul and Shavin White varieties. Nutrient contents in plants were found to be influenced by organic manure application. The plants treated with 50% recommended dose + 3 % vermiwash + 3 % panchagavya recorded higher values for nutrients analysed Tags from this library: