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International Journal of Applied Agricultural & Horticultural Sciences
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Language : English
DOI Prefix : 10.37322
P-ISSN : 0974-0775
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Vol. 6 (4) : July-August 2015 issue
Green Farming Vol. 6 (4) : 768-771 ; July-August, 2015
An assessment of nutritional status of soils under litchi (Litchi chinensis Sonn.) orchards in relation to fruit yields in Uttarakhand
SAVITA1*, P.C. SRIVASTAVA2, DEEPA RAWAT3 and S.P. PACHAURI4
Deptt. of Soil Science, G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Designation :  
1Res. Assoc. *(savitaiihr@gmail.com), 2Professor, 3Ph.D. Scholar, 4Asstt. Professor
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-2736
Total Pages : 4
Received : 10 October 2014
Revised accepted : 16 June 2015
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Citation :

SAVITA, P.C. SRIVASTAVA, DEEPA RAWAT and S.P. PACHAURI. 2015. An assessment of nutritional status of soils under litchi (Litchi chinensis Sonn.) orchards in relation to fruit yields in Uttarakhand. Green Farming Vol. 6 (4) : 768-771  ;  July-August, 2015

ABSTRACT
A survey was conducted during 2011-12 covering litchi orchards of U. S. Nagar, Nainital, Champawat, Dehradun and Haridwar districts in Uttarakhand where litchi extensively grown. Surface (0-22.5 cm) soil samples (n=145) were collected and analyzed for soil properties and extractable soil nutrients. The contents of alkaline KMnO4 hydrolysable N, Olsen's P and Neutral 1N ammonium acetate (NH4OAc) K in soils ranged from 134.8 to 376.3, 10.9 to 123.6 and 34.7-285.6 kg ha?1, respectively. The DTPA extractable Fe, Mn, Zn and Cu in soils ranged from 5.55 to 171.2, 2.38 to 87.4, 0.20 to 14.9 mg kg-1 and 0.33 to 4.24 mg kg-1, respectively. Hot water soluble B and ammonium oxalate (pH 3.3) extractable Mo in soils ranged from 0.31 to 3.45 and 0.30 to 0.58 mg kg-1 respectively. As per the values of nutrient indices, the soils of litchi orchards of U.S.Nagar district, were low in N and K, medium in S and Zn but high in P, Fe, Mn, Cu, B and Mo, and of Nainital district, were low in N, K and S and high in P, Fe, Mn, Cu, Zn, B and Mo, of Champawat district, were low in N, K and S and medium in Zn but high in P, Fe, Mn, Cu, B and Mo fell and of Haridwar and Dehradun districts were low in N, K and medium in S but high in P and micronutrients Fe, Mn, Cu, Zn, B and Mo. The relationship between soil properties, extractable soil nutrients and fruit yield per tree was also studied.
Key words :
Extractable soil nutrients, Fruit yields, Litchi, Nutrient indices, Soil samples, Soil fertility.