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Effect of N and P2 O5 Levels on Yield of Paddy Yar. Gun-3 Under Varying Spacing and Seed Rate During Kharif

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Title Effect of N and P2 O5 Levels on Yield of Paddy Yar. Gun-3 Under Varying Spacing and Seed Rate During Kharif
 
Creator Suresh, Dekhane Sw Apnil
 
Contributor Arvadia, M. K.
 
Subject null
 
Description A field experiment was conducted during kharif seasons of 20 13-14
and 2014-15 at the College Farm, N. M. College of Agriculture, Navsari
Agricultural University, Navsari to study the "Effect of Nand P,Oj levels
on yield of paddy var. GNR-3 under varying spacing and seed rate during
kharif'. The soil of the experimental field was claye in texture and
slightly alkaline in reaction. The soil was low in available N, while
medium in available P and high in available K. Total twenty four treatment combinations comprising of three
nitrogen levels (100, 150 and 200 kg N hal), two phosphorus levels (30
and 60 kg P,O, hal), two levels of inter-row spacing (20 and 30 cm) and
two levels of seed rate (40 and 60 kg hal) were tried in randomized block
design with three replications.
Two years pooled results indicated that all the growth and yield
attributing characters were significantly influenced due to various levels of
nitrogen. Application of N @ 200 kg haol showed favourable effect as
compared to 150 and 100 kg N hal. Among the N levels, application of nitrogen @ 200 kg hal significantly improved plant height, number of
tillers planr', dry matter production planr', number of effective tillers m",
panicle length, seed panicle", test weight, seed and straw yield per hectare
and thus, turned out significantly superior to rest of the N levels. Looking
to the pooled data the application of N @ 200 and 150 kg ha,l gave the
yield rise to the tune of 28.0 and 22.6 per cent, respectively over 100 kg N
ha". Application of nitrogen gave significant effect on P content in straw,
Nand P uptake in seed and straw and protein yield in pooled analysis.
Application of N @ 200 kg hal accrued the maximum net realization of ~
41407 hal and benefit:cost ratio of 2.03, which was followed by 150 kg N
ha,l (~38672 ha,l and 1.97, respectively). Phosphorus levels also showed discernible influenced on growth
characters, yield attributes and yield of paddy. Application of P,O, @ 60
kg ha' remarkably improved plant height, number of tillers planf', dry
matter production planf', number of effective tillers m", seed panicle",
seed and straw yield ha' over 30 kg P,O, ha'. The magnitude of ir.crease
in seed yield due to application of 60 kg P,O, ha' was to the tune of 7.05
per cent over 30 kg P,O, ha" during pooled data. Phosphorus uptake in
seed and protein yield was found significant in pooled analysis due to
phosphorus levels. Application of P,O, @ 60 kg ha' mount up the
maximum net realization of 37055 ha' and benefit cost ratio of 1.92,
which was followed by P,O, @ 30 kg ha' (33340 ha' and 1.85 respectively). Inter-row spacing affect significantly on plant population, plant
height at 90 DAS, number of tillers planf' (60,90 DAS and at harvest) and
dry matter production planf' (60 DAS). Phosphorus uptake in seed and
protein yield was found significant in pooled analysis due inter-row
spacing. Planting of paddy with wider inter-row spacing (30 cm) build up
the higher net realization of ~ 36873 ha" and benefit cost ratio of 1.94 than narrow inter-row spacing (20 cm) ( ~ 33537 ha' and 1.84,
respectively).
Seed rale levels significanlly influenced Ihe plant populalion and dry
matter produclion planf' al 60 DAS in pooled analysis. Application of
seed rale @ 60 kg ha" gave maximum net realization of ~ 35620 hal and
benefit:cost ralio of 1.89, which was followed by seed rale @ 40 kg ha' (~
34790 ha' and 1.88, respectively).
There was a positive interaction between Nand P,O, levels and
inter-row spacing and seed rate with regard to number of seeds per panicle
and seed yield. Planting with application of P,O, @ 60 kg hal along with
seed rate@ 60 kg hal and application of P,O, @ 60 kg hal + 30 cm interrow
spacing along with seed rate @ 60 kg ha" turned out to be
significantly superior to rest oflhe treatment combinations.
Based on the findings of two years experimentation, it is concluded thaI higher production and profit from kharifpaddy (var. GNR-3) can be
secured by applying 200 kg N ha', 60 kg P,O, hal and sown with seed
rate @ 60 kg hal along with 30 cm inter-row spacing in clayey soil of
south Gujarat.
 
Date 2018-04-19T06:54:37Z
2018-04-19T06:54:37Z
2016-11
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/5810044077
 
Language en
 
Format application/pdf
 
Publisher Agronomy Dept., N. M. College of Agriculture Navsari Agricultural University