Record Details

Spatial Assessment of Soil Fertility Status in Shiratti Sub Watershed of Semi-arid Tropics in Southern India

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Spatial Assessment of Soil Fertility Status in Shiratti Sub Watershed of Semi-arid Tropics in Southern India
Not Available
 
Creator Vasundhara, R.,
Rajendra Hedge,
Dharumarajan, S.
Niranjana K. V
 
Subject Spatial distribution, semivariogram, geostatistics, soil nutrients, organic carbon
 
Description Not Available
Spatial variability of soil fertility assessment is necessary for enhancing crop and soil productivity particular of the area. The study was carried out to evaluate the nutrient status of soils in micro watersheds, of Shiratti taluk in Gadag district, Karnataka with objectives of (i) to assess the spatial variability of Soil nutrients at a regional scale through geostatistical methods and to assess the relationships of nutrient availability with several soil properties. Around 831 surface soil samples (0–15 cm depth) were collected from farmer’s fields with total area of 5698 ha, at 250×250 m2 grid interval during 2014–15, using GPS locations. Semivariograms were calculated for all nutrients and their main parameters (nugget effect, sill and range) were obtained. The CV values of measured soil properties ranged from 13.18 for pH and 149 for EC. Among the soil nutrients
highest variation was observed in Zinc 126.84 and lowest was in potassium 55.38. Moderate spatial dependence for soil pH, OC, P2 O5, K2O, Fe, Mn and Cu and strong spatial dependence for extractable B and EC were observed. Available Fe and Zn deficiencies were noticed in 48 and 83% of the study area, respectively. Majority of the area recorded low in organic carbon, available P2 O5, S, and B whereas available K2 O is medium to high in status. Soil pH showed significant and negative correlations with the concentrations of extractable available S, B, Fe and Mn and Fe; whereas the available K2 O, Zn and Cu correlation was significant and positive with soil organic carbon concentration.
WHO
 
Date 2020-05-28T14:13:34Z
2020-05-28T14:13:34Z
2020-04-30
 
Type Research Paper
 
Identifier Not Available: Vasundhara et al., 2020. Spatial assessment of Soil Fertility Status in Shiratti sub Watershed of Semi-arid Tropics in Southern India. International Journal of Bio-resource and Stress Management 2020, 11(2), 163-170. HTTPS://DOI.ORG/10.23910/ IJBSM/2020.11.2.2077.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/36520
 
Language English
 
Relation Not Available;
 
Publisher 2020 PP House