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RESPONSE OF SWEET CORN TO DIFFERENT SOURCES OF ORGANIC MANURES

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Title RESPONSE OF SWEET CORN TO DIFFERENT SOURCES OF ORGANIC MANURES
 
Creator SETTY PANDE
 
Contributor MUNEENDRA NAIDU, S.M
 
Subject organic fertilizers, plant oils, confectionery, vegetables, yields, nitrogen, livestock, diseases, farmyard manure, crops
 
Description A field experiment was conducted during rabi, 2010-11 on sandy clay
loam soils of S.V. Agricultural College Dryland Farm, Tirupati Campus,
Acharya N.G. Ranga Agricultural University, Andhra Pradesh to study the
“Response of sweet corn to different sources of organic manures”. The
experiment was laid out in a randomized block design, replicated thrice. The
treatments consisted of T1-Recommended dose of nitrogen (120 kg ha-1
through urea-F N100), T2-100 per cent N through farm yard manure (FYM
N100), T3-100 per cent N through sheep manure (SM N100), T4-100 per cent N
through poultry manure (PM N100), T5-100 per cent N through green manuring
through Glyricidia maculata (GM N100), T6-100 per cent N through
vermicompost (VC N100),T7-75 per cent N through FYM + 25 per cent N
through panchagavya foliar spray (FYM N75 + PG N25), T8-75 per cent N
through sheep manure + 25 per cent N through panchagavya foliar spray (SM
N75 + PG N25),T9-75 per cent N through poultry manure + 25 per cent N
through panchagavya foliar spray, (PM N75 + PG N25), T10-75 per cent N
through green manuring + 25 per cent N through panchagavya foliar spray
(GM N75 + PG N25) and T11-75 per cent N through vermicompost + 25 per cent
N through panchagavya foliar spray (VC N75 + PG N25).
Among the different manurial practices, recommended dose of nitrogen
(T1 -F N100) registered the tallest plants, largest leaf area index and maximum
xv
dry matter production. This was on par with T9 (PM N75 + PG N25). This was in
turn on par with the T8 (SM N75 + PG N 25), while the shortest plants, lowest
leaf area index and dry matter production were recorded with the application of
the green manuring (T5-GM N100), which was however, on par with 100 per
cent N through vermicompost (T6 -VC N100).
The recommended dose of nitrogen (T1) resulted in increase in values
for yield attributes which was followed by T9 (PM N75 + PG N25).The shortest
cobs, smallest girth and the lowest cob weight were noticed with the
application of the green manuring (T5- GM N100).
The highest green cob yield of 3930 kg ha-1 and green fodder yield of
15951 kg ha-1 were recorded with the application of 100 per cent recommended
dose of nitrogen (T1-F N100). This was followed by T9 (PM N75 + PG N25)
which was on par with T8 (SM N75 + PG N 25). The green cob and green fodder
yield noticed with T2 (FYM N100) was on par with T6 (VC N100). The lowest
green cob and green fodder yields of 1769 kg ha-1and 8795 kg ha-1were
recorded with T5 (GM N100).
Different manurial practices significantly influenced the quality
characters with regard to protein, carbohydrates, reducing sugars, non-reducing
sugars, total sugars, iron and zinc. The recommended dose of nitrogen (T1)
resulted in the best quality characters. This was followed by T9 (PM N75 + PG
N25) and T8 (SM N75 + PG N25). The lower quality parameters of sweet corn
kernels was registered with T5 (GM N100).
The higher total nitrogen, phosphorus and potassium uptake were
recorded with T1 (F N100), T9 (PM N75 + PG N25) and T11 (VC N75 + PG N25),
while lowest nutrient uptake was recorded with T5 GM N100).
The highest post harvest soil available nitrogen was recorded with T5
(GM N100) and this was on par with T6 (VC N100). The post harvest soil
available nitrogen was lowest in T9 (PM N75 + PG N25). The highest soil
available phosphorus content was observed in T4 (PM N100), followed by T5
(GM N100). The lowest soil available phosphorus was registered with T1
(F N100). The highest potassium content was recorded with T6 (VC N100) and
the lowest potassium content was noticed with T8 (S M N 5 + PG N25).
The highest gross and net returns of `.63735 ha-1 and `.58950 ha-1 were
obtained respectively with the application of the recommended dose nitrogen
(T1-F N100) and this was followed by T9 (PM N75 + PG N25). The lowest gross
and net returns were observed with T5 (GM N100). Among the different organic
manurial practices, the highest B: C ratio was registered with T1 (F N100),
which was significantly superior to rest of the treatments and was followed by
T4 (PM N100). The lowest B: C ratio was recorded with T10 (GM N75 + PG N25).
In conclusion, the results revealed that highest yield of sweet corn (3930
kg ha-1) with better quality and net returns (`.58950 ha1) could be produced
with 100 per cent recommended dose of nitrogen. However, application of
poultry manure along with panchagavya was found to be next best alternative
manurial practice for obtaining better yield and net returns.
 
Date 2016-06-04T13:38:04Z
2016-06-04T13:38:04Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66772
 
Language en
 
Relation D8989;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY