Vol. 2 (1) : January-February 2011 issue
Green Farming Vol. 2 (1) : 42-46 (January-February, 2011) (New Series)
Amelioration of paddy soils polluted with industrial effluents through amendments
T. VENKATA SRIDHARa1* and A. UPENDRA RAOb2
aDeptt. of Soil Science & Agricultural Chemistry, bDeptt. of Agronomy, APRRI & RARS, Maruteru - 534 122 (A.P.)
Designation : 1Scientist, 2Sr. Scientist *Correspondence
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. :
Total Pages : 5
Received :
Revised accepted :
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Citation :
T. VENKATA SRIDHAR and A. UPENDRA RAO. 2011. Amelioration of paddy soils polluted with industrial effluents through amendments. Green Farming Vol. 2 (1) : 42-46 (January-February, 2011) (New Series)
ABSTRACT
A study was conducted on amelioration of paddy soils polluted with industrial effluents through amendments at College of Agriculture, Rajendranagar, Hyderabad for evaluating the amendments to abate the polluted soils. The results revealed that highest drymatter yield was observed in treatment applied with the application of RDF (NPK) + 5t VC ha-1 (32.60 g pot-1). Among the treatments highest N (4.67 percent)and K (3.49 percent)contents were observed in paddy crop grown on Isnapur polluted soil with the treatment of RDF (NPK) + 5 t VC ha-1, whereas P content was highest in treatment with the application of 100 kg P2O5 ha-1 along with N&K as RDF. The Fe, Mn and Zn contents were increased with the application of phosphorus and vermicompost, whereas Cu, Cd, Ni, Cr and Pb contents were decreased with the application of phosphorus, vermicompost and CaCO3. Application of 5% CaCO3 along with RDF showed significant reduction in contents over other treatments. In post harvest soils of Isanpur, percent reduction in Cd, Ni, Cr and Pb with the application of CaCO3 + RDF (NPK) was 34.14, 19.53, 39.54 and 30.10, respectively.
Key words :
Amendments, CaCO3, heavy metals, micronutrients, paddy, polluted soils, vermicopost.
