Time of Planting and Nutrient Management for Off Season Production of Chinese Potato
Abstract
Chinese potato (Plectranthus rotundifolius) is a minor tuber crop, the tubers of which are used as vegetable. Chinese potato is a season bound crop. The released varieties of Chinese potato namely SreeDhara from Central Tuber Crops Research Institute (CTCRI), Thiruvananthapuram and Nidhi from Regional Agricultural Research Station (KAU), Pattambi are recommended for planting during July-October (KAU, 2011). There is a great scope for off season production of Chinese potato using photo-insensitive varieties. The tubers fetch a higher price in the market due to great demand during off season. Kerala Agricultural University (KAU) has released one photo-insensitive variety namely Suphala in 2006. Hence an investigation was undertaken at College of Agriculture, Vellayani to fix the ideal time of planting and optimum nutrient management practices for exploiting the yield potential of the var. Suphala during the off season. The field experiment was conducted from November 2013 to May 2014. available P (35.2kg ha-1) and low in available N (213.26kg ha-1) and K (102kg ha-1) contents. The treatments consisted of four dates of planting (November 15, December 1, December 15 and January1) and three nutrient management practices(Recommended dose - 60:60:100 kg NPK ha -1 through fertilizers ;recommended dose through organic manures - 6 t FYM + 3 t coir pith compost + 3 t wood ash ha-1+ PGPR mix1 and Modified nutrient dose - 60:30:120 kg NPK ha -1 through fertilizers).References
Archana, B. and Swadija, O.K. 2000. Influence of different organic manures, P level and biofertilizer on the growth and yield of coleus. J. Root Crops26(2): 78-81.
Atul, J., Swadija, O.K. and Vijayaraghavakumar. 2013. Effect of organic management on growth and yield of Chinese potato (Plectranthus rotundifolius). J. Root Crops 39(1): 103-106.
Geetha, K. 1983. Nutritional management in coleus (Coleus parviflorus Benth). M.Sc.(Ag) thesis, Kerala Agricultural University, Thrissur, 118p.
KAU,2007.Package of Practices Recommendations:Crops-2007 (13thEd.). Kerala Agricultural University, Thrissur, 334p.
KAU,2008.Research Report2004-2006. Kerala Agricultural University, Thrissur, 251p.
KAU, 2011.Package of Practices Recommendations:Crops (14th Ed.). Kerala Agricultural University, Thrissur, 360p.
Kolambe, B.N., Patel, K.G., Kaswala, A.R., Patel, V.S. and Desai, K.C. 2013. Organic management affects growth, yield, quality and soil properties in elephant foot yam. J. Root Crops39(1): 62-66.
Singh, K.D. and Mandal, R.C. 1976.Performance of coleus and sweet potato in relation to seasonal variation (time of planting).J. Root Crops2(2): 17-22.
Downloads
Published
How to Cite
Issue
Section
License
Dear Author(s)
We need your written permission before we can publish your accepted article in the Journal of Root Crops. Please read this form carefully, complete it and palace your signature below. A scanned copy of this form may be mailed to us within two days of receipt of this letter. Our email ID is: isrc_ctcri@yahoo.com or editor_jrc@yahoo.com or sreekumarctcri@gmail.com
Details:
In consideration of the publication in the Journal of Root Crops of our contribution entitled
(Name of the paper): .................................................................................................................
.................................................................................................................................................... by us (all Authors’ names) ..........................................................................................................
....................................................................................................................................................
A. To be filled in if copyright belongs to you
I/we hereby assign to Indian Society for Root Crops, Thiruvananthapuram, India, the full copyright in all forms and media in the said contribution, including open/ restricted access to online version. They own the rights to freely grant or distribute the paper to any third party or public
Please tick this box if you are the sole author of the paper
Please tick this box if you are authorised to execute this copyright transfer on behalf of all the authors of the above article
Name (block letters): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .......
Institution/Company:..................................................................................................................
....................................................................................................................................................
Signature:.....................................................................; Date: ....................................................
B. To be filled in if copyright does not belong to you
1. Name and address of copyright holder:................................................................................
........................................................................................................................................................................................................................................................................................................
2. The copyright holder hereby grants Indian Society for Root Crops, Thiruvananthapuram, India the full copyright in all forms and media in the said contribution, including open/ restricted access to online version. They own the rights to freely grant or distribute the paper to any third party or public.
(Signature of copyright holder or authorised agent)
