PERFORMANCE OF AROMATIC RICE VARIETIES UNDER ZINC FERTILIZATION

Abstract

An experiment was conducted at the Agriculture Research Field and Laboratory, Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, to study the yield and yield attributes of aromatic fine rice as affected by variety and application of zinc fertilizer during the period from June to December 2016. The experiment comprised three aromatic fine rice varieties V1=Kalizira, V2=Tulsimala, V3=Kataribhog and three doses of zinc like Z0=Zinc control (no application of zinc), Z1=10 Kg ha-1 and Z2=20 kg ha-1. The experiment was laid out in a randomized complete block design with three replications. Most of the parameters showed significant difference among the treatment. The cultivar Kataribhog (V3) with Z2 produced tallest plant (148.10 cm) followed by Tulsimala (V2) with Z2 (147.57 cm). Tulsimala (V2) with Z2 produced highest number of effective tillers hill-1 (17.90) which was statistically similar in Kalizira (V1) with Z2 (17.20). Rice cultivar V1 with Z2 produced the lowest number of non-effective tillers hill-1 (0.30) Kalizira (V1) with (Z1) produced tallest panicle (22.08 cm). The highest number of fertile grain panicle-1 (130.10) was recorded in rice cultivar Kataribhog (V3) with Z1. Statistically similar result was recorded in Tulsimala (V2) with Z1 (127.00). The lowest number of non-fertile grain panicle-1 (5.0) was produced in the variety (V3) with Z2. The highest 1000-grain weight was observed in the aromatic rice cultivar (V3) with Z1 (16.86 g). Highest grain yield (2.30 t ha-1) was found in the (V3) with Z1. The highest straw yield (3.370 t ha-1) was found in the (V3) with Z2. The highest biological yield (5.503 t ha-1) was found in the (V3) with Z2 and which is statistically similar to V3 with Z1. The highest harvest index (42.12%) was observed in the aromatic rice cultivar (V3) with Z1. The treatment combination V3Z1 performed better in 1000-grain weight, grain yield, biological yield and harvest index and overall increasing the yield of aromatic rice.