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Research Article

Impact of Applying Calcium on Yield and Visual Quality of Groundnut(Arachis hypogaea L.)

Kirthisinghe JP1*, Thilakarathna SMCR2, Gunathilaka BL2 and Dissanayaka DMPV3
1Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Sri Lanka
2Department of Agriculture, Kurunegala, Sri Lanka
3Export Agriculture Department, Narammala, Sri Lanka
Corresponding Author : Prof. Kirthisinghe JP
Department of Crop Science
Faculty of Agriculture
University of Peradeniya, Sri Lanka
Tel: 0094 716662173
E-mail: [email protected]
Received January 10, 2014; Accepted February 13, 2014; Published February 15, 2014
Citation: Kirthisinghe JP, Thilakarathna SMCR, Gunathilaka BL, Dissanayaka DMPV (2014) Impact of Applying Calcium on Yield and Visual Quality of Groundnut (Arachis hypogaea L.). Adv Crop Sci Tech 2:123. doi: 10.4172/2329-8863.1000123
Copyright: © 2014 Kirthisinghe JP. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Recently, Department of Agriculture (DOA), Sri Lanka had developed four new varieties namely, Thissa, Indi, Walawa and Tikiri. Groundnut is cultivated in the dry and intermediate zones of Sri Lanka mainly under rain fed in October season and, in paddy lands under irrigation in April season. Low yields and the poor quality kernels are the major constraints to cultivation of Groundnut (Arachis hypogaea L.) in Sri Lanka. Groundnut is usually grown in well-drained soils with a pH of 6.5. Inadequate and unbalanced supply of nutrients may be one of the reasons for low yields in acidic and sandy soils. Farmers in Dambulla and Maspotha, apply 60-350 kg ha-1 of Gypsum for their cultivations and obtained a yield of 2000-2500 kg ha-1. Therefore, this study was conducted to find out the effect of Calcium using Gypsum on the yield and quality of Groundnut in Maspotha divisional secretariat area of Kurunegala district, in the intermediate zone of Sri Lanka. Soil pH and EC were measured to determine the acidity and salinity levels. The field experiment was conducted during the October seasons 2011/2012 and 2012/2013. Randomized Complete Block Design was used with four treatments (0, 125, 175, 250 kg ha-1 of Gypsum) and three replicates. The crop management practices were done according to the standard procedures. The nut yield, number of pegs per plant, kernel and shell weight of fifty pegs per plot, dry weight of fifty seeds were measured. The seed quality and filling of seeds in each treatment were also evaluated. The results revealed that with application of 250 kg ha-1 of Gypsum increased the soil pH from 4.1 to 5.0 and increase the mean pod dry weight per plot of 40 plants, from 578
to 835 g with better quality kernels.

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