STUDIES ON PLANTING DENSITY AND FERTILIZER LEVELS ON SEED PRODUCTION OF TEMPERATE CARROT (Daucus carota L.)
Loading...
Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
ABSTRACT
The present investigation, “Studies on planting density and fertilizer levels on seed production of temperate carrot (Daucus carota L.)’’ was carried out at Vegetable Research Station, Kalpa, of Regional Horticultural Research & Training Station and Krishi Vigyan Kendra, Kinnaur (HP), Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, H.P. from April to October 2015. The experiment was laid out in Randomized Block Design (Factorial) in the field. The treatment combinations comprised of four planting densities (D) viz., D1 (45x15 cm), D2 (45x30 cm), D3 (30x30 cm) and D4 (30×15 cm) four fertilizer levels (F) viz., F1 (75% RD NPK), F2 (100% RD NPK), F3 (125% RD NPK) and F4 (150 % RD NPK). The observations were recorded in the field on plant height (cm), days to flowering initiation, days to 50% flowering, number of primary umbels plant-1, number of secondary umbels plant-1, weight of primary umbels plant-1, seed yield plant-1 (g), seed yield plot-1 (g), seed yield (q ha-1), total biomass plant-1 and benefit: cost ratio. While the observations recorded in the laboratory were germination (%), seed vigor index-I & II, available NPK before and after experiment. Analysis of variance showed significant differences among the treatment combinations for all the characters studied. Non-significant differences of planting density, fertilizer levels as well as interaction were observed on electrical conductivity and pH. On the other hand, available NPK status was influenced only by fertilizer levels. The treatment combination F4D2 (150 % RD NPK and 45x30 cm) performed best for all horticultural traits, seed yield characters and seed quality characters. Therefore, planting density 45x30 cm in combination with 150% RD NPK i.e. F4D2 can be recommended for commercial seed production of carrot.
Description
Keywords
sowing, planting, yields, fertilizers, spacing, carrots, developmental stages, nitrogen, productivity, crops, carrot (Daucus carota L.,seed production,planting density and fertilizer levels