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Studies on Effect of Different sources of nitrogen and Potassium on productivity and shelf Life of onion (Allium cepa L.) Var. Arka Kalyan

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Title Studies on Effect of Different sources of nitrogen and Potassium on productivity and shelf Life of onion (Allium cepa L.) Var. Arka Kalyan
 
Creator Laxman.Kale
 
Contributor T.B.Allolli
 
Subject Horticulture
 
Description The investigation was conducted at MARS, UAS, Dharwad during kharif 2009 to
study the effect of different sources of nitrogen and potassium on productivity and storage of
onion (Allium cepa L.) var. Arka Kalyan. The superiority of morphological characters like
plant height, number of leaves, neck thickness, leaf area, chlorophyll content dry matter and
nutrient uptake were due to sulphate of potash as a source of potassium and ammonium
sulphate as a source of nitrogen. Among various interaction effect, the highest uptake of
nitrogen and potassium were due to interaction of sulphate of potash and ammonium
sulphate.
Similarly, yield and yield attributing characters viz, polar and equatorial diameter,
fresh bulb weight, rings per bulb, TSS, bulb yield were significantly maximum due to
application of sulphate of potash and ammonium sulphate than sources of potassium and
nitrogen.
Economics of crop worked out. Among potassium sources, the higher net return was
obtained with sulphate of potash. But muriate of potash exhibited higher B:C ratio than
sulphate of potash due to its lower cost. Among nitrogen sources, the highest net return was
realized due to application of ammonium sulphate. But the highest B:C ratio was noticed due
to application of urea which is mainly attributed to lower cost of urea.
Interaction with respect to B:C ratio found significant. The highest B:C ratio
recorded due to interaction effect of muriate of potash and urea, which may be further
attributed to lower prices of both urea and muriate of potash.
During storage studies, there was no significance difference on any of the post
harvest parameter of onion due to different source of Potassium. Among different nitrogen
sources, significantly lowest loss in PLW, rotting, sprouting and total loss due to application
of sheep manure followed by FYM.
 
Date 2016-11-07T18:49:22Z
2016-11-07T18:49:22Z
2010
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/84310
 
Format application/pdf
 
Publisher UAS, Dharwad