EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON GROWTH, FLOWERING AND YIELD IN ROSE (Rosa indica L) cv. Sophia loren
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Date
2010-07
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ANDHRA PRADESH HORTICULTURAL UNIVERSITY
Abstract
An investigation was carried out on “Effect of integrated nutrient management on growth, flowering and yield in rose (Rosa indica L) cv. Sophia Loren” at College of Horticulture, Andhra Pradesh Horticulture University, Rajendranagar, Hyderabad during the year 2009-10. The experiment was laid out in Randomized Block Design with nine treatments replicated thrice. The treatments consisted of 100% recommended dose of inorganic fertilizers (RDF) (500:400:300 Kg of N P K ha-1) (T1), FYM 30 t ha-1 + Remaining RDF through chemical fertilizers (T2), Neem cake 2 t ha-1 + Remaining RDF through chemical fertilizers (T3), Vermicompost 2 t ha-1 + Remaining RDF through chemical fertilizers (T4), FYM 30 t ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers (T5),
Neem cake 2 t ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers (T6), Vermicompost 2 t ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers (T7), FYM 15 t ha-1 + Vermicompost 1 t ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers (T8), FYM 15 t ha-1 + Neem cake 1 t ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers (T9). The results of the experiment revealed that among the different treatments, maximum growth attributes viz., plant height (146.56 cm), number of branches plant-1 (16.40), plant spread (85.83cm), and total dry leaf bioamass at harvest (4.53 g plant-1) was recorded in T8 (FYM 15 t ha-1 + Vermicompost 1 to ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers) treatment. Further, it was observed that the different floral attributes viz., Bud diameter (2.57 cm), days taken to flowering (22.66), number of petals per flower (48.90) and maximum diameter of flower (10.40 cm) was recorded with the same treatment. Non significant result was recorded for the bud length of flower with the different treatment combinations. Among the flower yield attributes, maximum number of flowers plant-1 (38.27), number of flower pickings (6.48), weight of single flower (14.32g), number of flowers per m2 (103.32) flower yield ha-1 (10.66 lakhs) and vase life (8.96 days) were found with treatment T8 (FYM 15 t ha-1 + Vermicompost 1 to ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers). The highest nutrient content in leaves such as nitrogen (2.95%), phosphorus (0.265%) and potassium (1.61%) were recorded in treatment T8 comprising FYM 15 t ha-1 + Vermicompost 1 to ha-1+ Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers. The results from the present study clearly showed that the application of T8 comperising FYM 15 t ha-1 + Vermicompost 1 t ha-1 + Azotobactor 10 kg ha-1 + PSB 10 kg ha-1 + Remaining RDF through chemical fertilizers resulted in the maximum net returns (Rs.3,64,676) with a benefit-cost ratio of 2.18.
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Keywords
developmental stages, fertilizers, planting, roses, farmyard manure, vermicomposting, nutrients, azotobacter, yields, biological development