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INTERVENTIONS IN NUTRIENT MANAGEMENT FOR ENHANCEMENT OF GRAIN YIELD AND QUALITY OF POPULAR RICE VARIETIES

KrishiKosh

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Title INTERVENTIONS IN NUTRIENT MANAGEMENT FOR ENHANCEMENT OF GRAIN YIELD AND QUALITY OF POPULAR RICE VARIETIES
 
Creator PADMAVATHI, J
 
Contributor SUBBAIAH, G
 
Subject rice, developmental stages, yields, grain, zinc, farmyard manure, textural soil types, clay, organic compounds, productivity
NUTRIENT, GRAIN, RICE
 
Description A field experiment entitled “Interventions in nutrient management for
enhancement of grain yield and quality of popular rice varieties” was conducted
at Agricultural College Farm, Bapatla on a sandy clay loam soil during kharif
season of 2010-11. The experiment consisted of two varieties V1: BPT 5204
(Samba Mahsuri), V2: NLR 33892 (Pardhiva) and seven treatments viz.,
Recommended NPK only (T1), T1 + 5 t ha-1 FYM (T2), T1 + 50 kg ZnSO4 ha-1 as
soil application (T3), T1 + 2% urea spray at flowering stage (T4), T1 + 0.5%
ZnSO4 spray at flowering stage (T5), T1 + 2% urea + 0.5% ZnSO4 spray at
flowering stage(T6), T1 + 2% ZnSO4 enrichment of third split application of
nitrogen(T7).The experiment was laid out in a Randomized Block Design with
Factorial Concept with three replications.
The findings of the experiment revealed that the growth parameters such
as plant height, number of tillers m -2, drymatter production and chlorophyll
content (SPAD reading) measured at different intervals were significantly
influenced by varieties and treatments. However, interaction between varieties
and treatments was non significant.
Significantly taller plants were produced with NLR 33892 variety and
higher drymatter accumulation, whereas, more number of tillers were with BPT
5204. There was a significant improvement in all the growth parameters viz.,
plant height, number of tillers m -2, drymatter production and chlorophyll content
with soil application of 50 kg ZnSO4 ha-1, which was however, comparable with
combined application of 2% urea and 0.5% ZnSO4 spray at flowering stage.
The highest number of total (238) and filled grains panicle-1 (224), test
weight (18.2 g), grain yield (5052 kg ha-1), harvest index (47.1), nitrogen (108.8
kg ha-1) and zinc uptake (1027.1 g ha-1) were observed with NLR 33892,
whereas, the maximum productive tillers m -2 (337), straw yield (6261 kg ha-1)
was with BPT 5204. Significant increase in yield attributing characters, grain
and straw yields (5859 kg ha-1 and 6406 kg ha-1), harvest index (47.8), nitrogen
and zinc uptake (118.5 kg ha-1 and 1106.8 g ha-1) were with soil application of
50 kg ZnSO4 ha-1, which was however, comparable with combined application
of 2% urea and 0.5% ZnSO4 spray at flowering stage.
Significantly better quality parameters of rice grain such as protein,
amylose contents, milling per cent, hulling per cent, head rice recovery, volume
expansion ratio were noticed with the variety BPT 5204 and combined
application of 2% urea and 0.5% ZnSO4 spray at flowering stage, which was
however, comparable with soil application of 50 kg ZnSO4 ha-1. However,
interaction between varieties and treatments was non significant.
The highest gross returns, net returns and returns per rupee investment
were registered with NLR 33892. Among different treatments, the highest gross
and net returns (Rs. 56127 ha-1) were obtained with the soil application of 50 kg
ZnSO4 ha-1. Whereas, the returns per rupee investment was the maximum with
conjunctive use of 2% urea and 0.5% ZnSO4 spray at flowering stage.
From the present investigation, it can be concluded that under sandy clay
loam soils of Bapatla, NLR 33892 performed better in giving the maximum
yield, net returns and returns per rupee investment. Soil application of 50 kg
ZnSO4 ha-1 and combined application of 2% urea and 0.5% ZnSO4 spray at
flowering stage were found to be better, which resulted in higher productivity,
better economic returns and improved quality characteristics of rice
 
Date 2016-06-03T09:19:51Z
2016-06-03T09:19:51Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66674
 
Language en
 
Relation D9013;
 
Format application/pdf
 
Publisher ACHARYA N. G. RANGA AGRICULTURAL UNIVERSITY