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Jodhpur, India

Chandran P.,NBSS and LUP | Ray S.K.,NBSS and LUP | Bhattacharyya T.,NBSS and LUP | Tiwary P.,NBSS and LUP | And 9 more authors.
Clay Research | Year: 2013

We report alkaline, sodic and smectitic ferruginous Alfisols from semi-arid part of southern India. Such Alfisols on micro-low (ML) position in a catena are spatially associated with non-sodic soil at micro-high (MH) positions. The soils of the MH are well drained, sandy clay loam to sandy clay in texture, acidic to slightly alkaline with less CaCO3 and non-sodic. However, soils on ML is clayey, alkaline (9.1 – 9.4) and calcareous (10-13%) with high available water content and high sodicity (ESP 16-41%). The saturated hydraulic conductivity (sHC) of the ML soils is almost nil in the sub-surface horizons due to high ESP resulting in dispersion of clay and clogging of soil pores. Mineralogical studies indicate the presence of smectitekaolinite (Sm-K) interstratified mineral, which was formed during the past humid tropical climate, where as the formation of the high charge smectite occurred during the prevailing semiarid climate in both MH and ML soils. Sm-K is dominant in MH soils whereas smectite is dominant in ML soils. Micro- topography of the study area indicates that the ML positions are repeatedly flooded with surface water during brief and high-intensity showers, which provided steady supply of alkalis by hydrolysis of feldspars at MH sites leading to precipitation of calcium carbonate at high pH, development of subsoil sodicity and persistence of Sm-K and smectite in ML sites. Due to formation CaCO3 and concomitant development of sub-soil sodicity, the sHC of the ML soils were impaired. Similar micro-topographical situation in the formation of sodic and non-sodic soils on ML and MH positions respectively was reported earlier in soils of the Indo-Gangetic Plains (IGP), but in swell-shrink soils of central India a reverse situation was observed. The present study, however, indicates the need of a detailed study to explain the development of sodicity in soils of red and black soil associations in tropical India. Earlier studies by NBSS&LUP (ICAR) demonstrated that the formation of sodic soils is the result of climate shift from humid to semi-arid climate during the Holocene period. The study reaffirms the need of precise understanding of pedogenic processes for pragmatic land resource inventory even at larger scales for proper management of soil resources. © 2013, Clay Minerals Society of India. All rights reserved. Source


Meena M.L.,CAZRI | Sharma N.K.,CAZRI | Singh D.,CAZRI
Indian Journal of Animal Research | Year: 2015

The present study was carried out in the purposively selected Marwar region of Rajasthan. A multistage stratified random sampling design was used to select the districts, blocks, villages and sample households. A sample of 240 households was selected for the present study. Data were collected personally through a well structured and pre-tested interview schedule. It was found that majority of the households (66.25%) were initially providing self medication using traditional practices and in cases of severity of disease/ailment, village quack was consulted. Vaccination of sheep was followed in only 48.75 per cent of the selected households. In addition, in only 36 households (31.25%) the sick animals were isolated from the flock. A variety of traditional practices were observed being followed for treatment of various ailments and diseases of the goat and sheep with the use of locally available material, herbs, etc. © 2015, Agricultural Research Communication Centre. All rights reserved. Source


Dudi A.,CAZRI | Meena M.L.,CAZRI
Indian Journal of Traditional Knowledge | Year: 2015

The present study was carried out in the purposively selected arid region of Rajasthan. A multistage stratified random sampling design was used to select the districts, blocks, villages and sample households. A sample of 240 households was selected for the present study. Data were collected personally through a well structured and pre-tested interview schedule. It was found that majority of the households (66.25%) were initially providing self medication using traditional practices and in cases of severity of disease/ailment, village quack was consulted. Vaccination of goat was followed in only 48.75 % of the selected households. In addition, only 36 households (31.25%) the sick animals were isolated from the flock. A variety of traditional practices were observed being followed for treatment of various ailments and diseases of the goat with the use of locally available material, herbs, etc. © 2015, National Institute of Science Communication and Information Resources (NISCAIR). All rights reserved. Source

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