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Response of Maize (Zea mays L.) Hybrids to Fertility Levels and Different Storage Treatments

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Title Response of Maize (Zea mays L.) Hybrids to Fertility Levels and Different Storage Treatments
 
Creator Dechassa Hirpa Dibaba
 
Contributor C.S. Hunshal
 
Subject Agronomy
 
Description Field experiments were conducted to study the response of different maize
hybrids to varied fertility levels in vertisol under irrigation at Agricultural Research
Station Mudhol, Karnataka state during kharif (rainy) seasons of 2010 and 2011.
Treatments consisted of three maize hybrids (QPM-1, Pinnacle and Arjun) in main
plots, three NPK levels (100%, 150%, and 200% of recommended dose) in sub plots
and sulphur levels (20, 30, 40kg/ ha) in sub-sub plots. After harvest of first year, the
treatments were subjected six storage treatments (cow dung ash @ 30%, wood ash @
30%, Diatomaceous Earth @ 0.3%, Nimbecidine @ 1%, sweet flag @2% and
control).
Among the three hybrids studied, Pinnacle receiving 200% NPK together with
40 kg sulphur ha-1 recorded significantly higher grain yield (13200 kg ha-1), net
returns (Rs.119100 ha-1) and B:C (3.81) while QPM-1 in general, produced the
lowest grain yield (8046 kg ha-1), net returns (82190) and B:C (2.61) compared to
other treatment combinations and was followed by 30 kg S (12190 kg ha-1) by the
same hybrid with similar NPK levels.
Higher amount of nitrogen and potash were taken up at 200% NPK along with
30 or 40 kg sulphur whereas higher uptake of phosphorous was seen at 200% NPK
with 30 kg sulphur. Highest uptake of sulphur was noticed with application of 40kg
sulphur along with 200% NPK.
In the storage study, the highest weight loss of grains was recorded when
maize grains were stored without any storage treatment (28.30%) and the lowest loss
was recorded in sweet flag (5.07%) followed by diatomaceous earth (5.32%),
nimbecidine (5.60%), cow dung ash (5.92%) and wood ash (6.17%) in all hybrids
grown under different NPK levels and storage treatments. However, the storage
treatments did not have any significant effect between fertility levels and maize
hybrids.
 
Date 2016-07-25T13:35:07Z
2016-07-25T13:35:07Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69763
 
Format application/pdf
 
Publisher UAS Dharwad