Record Details

Soil, Water and Plant Charac— terisation in Fluorosis Endemic Areas of Andhra‘ Pradesh

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Soil, Water and Plant Charac— terisation in Fluorosis Endemic Areas of Andhra‘ Pradesh
 
Creator Enugonda Surendra Naidu, K.
 
Contributor Srinivasa Reddy, K.
 
Subject null
 
Description In order to characterise the soil, water and plantsamples, a survey was undertaken in 35 farmers fields in 30 villages of Kadiri, Kalakada, Nandikotkur and Podili mandals of Andhra Pradesh. The dominant soil colours of soils of fluorosis endemicareas were dark. brown, very dark brown and dark reddishbrown. The soils varied in their texture from loamy sand to'clay and were slightly to moderately alkaline in their reaction and also were non—saline. They were low to high in organic carbon, available N and P status and medium to high in available K. The Kadiri soils recorded higher water soluble F while the soils of Kalakada had low content. Nandikotkur soils were high in exchangeable Ca, Mg and Na contents than 'the other soils. In all the soils the available Fe, Mn Cu and Zn content were above the critical limits except 25% soils of Podili where the available Zn Was below the critical limit. All the waters of fluorosis endemic areas were slightly alkaline in thier reaction except a very few water samples
of Podili which were moderately alkaline. About ninty five percent of waters were fell under safe category based on RSC and SAR. 63 and 26 percent of waters were of the quality class of C3—Sl and C2—S1 respectively. More Ca and Mg were recorded in waters of Nandikotkur and Kalakada respectively than the other waters and more chlorides and sulphates were recorded in Nandikotkur waters. Comparitively higher concentration of fluorides was recorded in Podili waters while the lowest in Nandikotkur waters, however, all the waters exceeded the maximum allowable content of fluoride (1.0 ppm). The fluoride content of water was increased with increased depth of wells. Of all the plant samples collected higher F contentswere recorded with redgram (0.45%) finger millet (0.45%) and Amaranthus and lower contents with jowar (0.06%) and citrus (0.04%) plants. Significant and positive correlation was recorded between pH and water soluble fluorine of irrigated red and very dark brown soils. Significant and negative correlation was recorded. between available P and water soluble F of rainfed red soils and significant and positive correlation was observed between exchangeable Ca and water soluble F of irrigated red soils while this relation between the same elements was negatively significant in rainfed red soils. Exchangeable Na of irrigated red soil was significantly and positively correlated with water soluble F. Significant and negative correlation was recorded between available Zn and water soluble F of rainfed red soils. Significant and negative correlation was existed between the sunflower plant F' and water soluble F of soils. Significant and positive correlation was existed between P and F— of plants grown in irrigated red soils and significant and negative correlation existed between Ca'and F" of plants grown in rainfed red soils. The water soluble F content of soils decreased with increased P application and there was 1K) significant effect of sheep manure
 
Date 2018-06-11T06:36:40Z
2018-06-11T06:36:40Z
1994
 
Type Thesis
 
Identifier D4745
http://krishikosh.egranth.ac.in/handle/1/5810050772
 
Language en
 
Format application/pdf
 
Publisher Professor Jayashankar Telangana State Agricultural University