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SPATIAL DISTRIBUTION OF SOIL AVAILABLE NUTRIENTS IN THE POTATO GROWING POCKETS OF BANASKANTHA DISTRICT OF ARID GUJARAT

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Title SPATIAL DISTRIBUTION OF SOIL AVAILABLE NUTRIENTS IN THE POTATO GROWING POCKETS OF BANASKANTHA DISTRICT OF ARID GUJARAT
Not Available
 
Creator Mahesh Kumar
M. K. Jatav
N. R. Panwar
C. B. Pandey
 
Subject GIS, GPS, macronutrient, potato, soil available nutrients, spatial distribution, macronutrient, micronutrient, multi-nutrient, deficiencies
 
Description Not Available
A study on spatial variability in available soil nutrient i.e organic carbon (OC), available P, K and DTPA extractable micronutrients (Zn, Cu, Mn & Fe) was carried out during 2011-2012. About 110 geo referenced surface soil samples were collected from potato growing area of Deesa tehsil of Banaskantha district (Gujarat state) using GPS (Global positioning system). The maps showing the spatial variability of major and micronutrients were generated using GIS software (Arc GIS-9.3). The organic carbon (OC) ranged from 0.18 to 0.80 % with mean value 0.38 % reflected poor N fertility of these soils. About 30% samples rated high (>103 kg P2O5 / ha), 52% medium (51-103 kg P2O5 / ha) samples and 18 % low in available phosphorus (>51 kg P2O5 / ha) for potato cultivation. While 77 % samples were rated low (407 kg K2O / ha) in available K. With respect to micro-nutrients 40, 32 and 7 % soil samples were found deficient in zinc, iron and Cu, respectively. The corresponding values for different nutrients/parameters like OC, P, K, Fe, Zn, Mn, Cu and pH were linked with the respective sampling points and interpolation maps for each nutrient was generated in GIS using IDW technique. The map on spatial variability of OC showed that 95.0 and 5.0 per cent area was in the range of 0.10-0.50% and >0.50% respectively. About 65.10 % area was medium in available phosphorus and 27.30 % area was high in phosphorus whereas, 91.34% area was deficient in available K. Similarly 34.0, 29.8 and 3.3 % area was classified as deficient in Zn, Fe and Cu, respectively. These spatial variability maps clearly showed the specific locales of the pockets where attention is required with respect to management of major and micronutrients.
Not Available
ICAR-CAZRI, Jodhpur
 
Date 2019-05-16T06:45:55Z
2019-05-16T06:45:55Z
2016-01-01
 
Type Article
 
Identifier 04
0973-5909
http://krishi.icar.gov.in/jspui/handle/123456789/19586
 
Language English
 
Relation Not Available;
 
Publisher Potato Journal