Record Details

EFFECT OF ORGANIC SOURCES ON SOIL PROPERTIES AND YIELD OF RICE (Oryza sativa L.)

KrishiKosh

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Title EFFECT OF ORGANIC SOURCES ON SOIL PROPERTIES AND YIELD OF RICE (Oryza sativa L.)
 
Creator DIVYA, P
 
Contributor SANKARA RAO, V
 
Subject vermicomposting, farmyard manure, rice, fertilizers, yields, organic fertilizers, grain, nitrogen, nutrients, crops
 
Description A field experiment entitled “Effect of organic sources on soil properties
and yield of rice (Oryza sativa L.)” was conducted at Agricultural College Farm,
Bapatla on a sandy loam soil during Rabi, 2010-11. The experiment consisted of
seven treatments viz., T1 -100% RDN through urea, T2 - 100% RDN as FYM,
T3 - 125% RDN as FYM, T4- 150% RDN as FYM, T5 -100% RDN as
vermicompost, T6 - 125% RDN as vermicompost and T7 - 150% RDN as
vermicompost which was laid out in a Randomized Block Design with three
replications.
The results revealed that the growth parameters such as plant height,
number of tillers, productive tillers and yield attributes viz., drymatter
production, panicle length and 1000 seed weight were highest with the
application of 100% recommended doses of mineral nitrogen and comparable
with 150% application of N in the form of organics.
Grain and straw yields followed the same trend as that of growth
parameters and at higher levels of nitrogen in the organic form, vermicompost
performed better than FYM.
More content and uptake of nitrogen was observed with the application of
nitrogen in mineral form while the phosphorus, potassium, micronutrients
content and uptake of paddy was high with the addition of FYM and
vermicompost.
Dehydrogenase activity of soils collected at two stages of rice crop i.e.,
panicle initiation and at harvest was high in the treatments receiving organics.
Quality parameters viz., volume expansion ratio and amylose content of
rice was high when organics were used. Higher values were recorded with
application of vermicompost than FYM
Improvement in physico-chemical properties like organic carbon, bulk
density, porosity, available macro and micro nutrients was observed with the
application of organics. At added levels of nitrogen in organic form
vermicompost performed better than FYM.
From the present investigation, it can be concluded that under sandy loam
soils of Bapatla, nitrogen applied in the form of organics improved physical
conditions, availability of macro and micro nutrients and at higher levels
produced the yields comparable with the recommended dose of nitrogen in
mineral form.
 
Date 2016-06-21T14:15:47Z
2016-06-21T14:15:47Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/67616
 
Language en
 
Relation D9399;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY