Record Details

Impact of nitrogen and potassium management on growth, nutrient uptake and nutrient use efficiency of rice under semi dry condition

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Impact of nitrogen and potassium management on growth, nutrient uptake and nutrient use efficiency of rice under semi dry condition
 
Creator KK, Ajmal
Fathima, PS
Murthy, KN Kalyana
Ganapathi, S
Denesh , R
Prakash, SS
 
Subject Semi dry rice
nitrogen
potassium
nutrient use efficiency
 
Description  The current study was aimed to search effect of nitrogen doses and time of application on performance of semi dry rice. The field experiment was conducted at College of Agriculture,(V. C. Farm), Mandya, University of Agricultural Sciences, Bengaluru during kharif 2019 and 2020, which comes under Southern Dry Zone of Karnataka (Zone-VI) to study the response of semi dry rice on growth and nutrient use efficiency under two doses of nitrogen and potassium doses (100% RDNK, 125%RDNK) as main treatments and seven time of application as sub treatments.The result revealed that higher SPAD meter reading (37.77) and nutrient uptake (77.90, 27.98 and 24.14 kg ha-1)was seen in 125% RDNK and higher nitrogen and potassium use efficiency was observed in 100%RDNK (49.30, and 98.59 kg kg-1 nutrient applied respectively). Where as in split application, higher SPAD meter reading (38.90), nutrient uptake (81.82, 29.57 and 25.35kg ha-1)and nutrient use efficiency (49.86, 11.33 and 99.73 kg kg-1 nutrient applied respectively) was recorded in N at 4 splits as, 25% each at sowing, early tillering, tillering and panicle initiation, K at 2 splits (50% at basal and 50% at panicle initiation) compared to rest of the application. Hence application of  application of 125% RDNK,  N at 4 splits as, 25% each at sowing, early tillering, tillering and panicle initiation, K at 2 splits (50% at basal and 50% at panicle initiation) is the appropriate time for rice production Southern Dry Zone of Karnataka.
 
Publisher Association of Rice Research Workers
 
Date 2024-09-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/OIJR/article/view/148155
 
Source ORYZA-An International Journal of Rice; Vol. 61 No. 3 (2024): July-September; 234-241
2249-5266
0474-7615
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/OIJR/article/view/148155/55992
 
Rights Copyright (c) 2024 Association of Rice Research Workers
http://creativecommons.org/licenses/by/4.0