Record Details

Studies on the effect of gold ore tailings (GOT) as ca source of micronutrients to potato(Solanum tuberosum L.) on vertisol in northern transitional zone of Karnataka

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Studies on the effect of gold ore tailings (GOT) as ca source of micronutrients to potato(Solanum tuberosum L.) on vertisol in northern transitional zone of Karnataka
 
Creator G.Shashidhar
 
Contributor K.K.Math
 
Subject Soil Sciences and Agri Chemistry
 
Description A field investigation was conducted on Typic Haplustert at MARS, Dharwad during
kharif 2005 to study the direct and residual effect of GOT and COT on growth, yield,
nutrients uptake by potato and residual nutrient status, dehydrogenase activity and
accumulation of toxic elements and substances in soil. The treatments included frequency of
application of GOT at different levels. The experiment was laid out in two factorial
randomized block design with 21 treatments and three replications.
Direct and residual application of GOT @ 1.0 t per ha significantly improved the
growth parameters namely plant height, number of shoots per plant and dry matter production
as compared to control. Application of 1.0 t per ha of GOT resulted in 25.30 (every season),
23.85 (once in a year) and 22.57 per cent (once in two years) increase in tuber yield,
respectively over control. The uptake of N, P, K, S and Cu, Fe, Mn and Zn by potato
increased significantly with the application of GOT @ 1.0 t per ha (both direct and residual
effects) over control. There was an improvement in the residual nutrients status of soil with
respect to N, P, K and S and Cu, Fe, Mn and Zn with the application of GOT @ 1.0 t per ha
(both in direct and residual effects). The quality of potato tubers as measured by starch,
reducing sugar and total sugar contents improved significantly with the application of GOT
and COT @ 1.0 t per ha over control (both in direct and residual effects).There was an
improvement in the storability of potato tubers with the application of GOT @ 1.0 t per ha
(both in direct and residual effects) recorded lower physiological loss and lower number of
sprouted tubers than control. The arsenic and cyanide content in soil and plant increased with
the application of GOT at different levels and the extent of increase was higher at higher
levels of application. However, cyanide and arsenic contents in soil and plant are required to
be verified with different methods of estimation in laboratories elsewhere in India.
The highest net return was recorded due to application of GOT@ 1.0 t ha-1 once in a
year to potato crop.
 
Date 2016-10-25T13:57:43Z
2016-10-25T13:57:43Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81838
 
Format application/pdf
 
Publisher UAS, Dharwad