INFLUENCE OF IRRIGATION AND FOLIAR APPLICATION OF BORON FERTILIZER ON GROWTH, YIELD AND NUTRIENTS CONTENT OF BARI GOM 26

Abstract

An experiment was conducted at the experimental site of Sher-e-Bangla Agricultural University (SAU) during the period from November 2016 to March 2017 to study the influence of irrigation and foliar application of boron fertilizer on growth, yield and nutrients content of BARI Gom 26. The experiment consists of two factors such as three irrigation level viz. (i) I 0 (No irrigation; Control), (ii) I (One irrigation given at crown root initiation (CRI) stage; 18 DAS), (iii) I ii 2 1 (Two irrigations, one at CRI stage; 18 DAS and other at panicle initiation; PI stage; 55 DAS) and four levels of foliar application of boron (B) viz. (i) B ha -1 ), (iii) B 2 (2.0 kg H 3 BO 3 ha -1 0 (0 kg H 3 ) and (iv) B BO 3 3 ha -1 ; Control), (ii) B (2.5 kg H 3 BO 3 ha -1 ). The experiment was laid out in a randomized complete block design with three replications. Results indicated that irrigation treatment I (Two irrigations at CRI stage and PI stage) with the combination of B 2 (2.0 kg H 3 2 BO 3 ha -1 1 (1.5 kg H ) gave the highest dry weight plant (34.76 g), spike length (17.65 cm), number of spikelets spike -1 (61.20) number of grains spike -1 (41.63), 1000 grain weight (48.82 g), grain yield (4.66 t ha ), stover yield (6.42 t ha -1 ), biological yield (11.08 t ha -1 ) and highest harvest index (42.06%). Results also revealed that different levels of irrigation and foliar application of boron had no significant effect on concentration of N, P and S but significant effect was found in terms of concentration of K and B both in grain and straw. Combined effect of irrigation and foliar application of boron, I 1 B gave highest K concentration (0.855%) in grain but I 1 B 2 3 -1 gave highest K concentration (1.63) in straw. Again, I gave highest B concentration both grain and straw (14.80 and 20.10 μg g

respectively). The Overall Results sugest that B in the form of H

along with to irrigations at 18 and 55 DAS of can be advised to apply for getting maximum yield of BARIGOM 26 under the agro climatic conditions of SAU