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Jena, D.
- Effect of Soil Amendments on Yield and Iron Content of Rice in Iron Toxic Soil
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Authors
Affiliations
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
Source
An Asian Journal of Soil Science, Vol 3, No 2 (2009), Pagination: 264-268Abstract
A field experiment was conducted in an iron toxic soil (Aeric Haplaquept) to study the effect of fly ash, lime, potash, zinc and manganese on yield and iron content of rice plant. Symptoms of iron toxicity were appeared at 25-30 days after transplanting (DAT) and bronzing symptoms were scored as per IRRI standards (1-6 scale). The score values ranged from 3-8 in susceptible Jajati variety and from 1-3 in tolerant Mahsuri variety. The mean grain yield and iron concentration in leaf ranged from 19.04 to 24.29 q ha-1 and 719.10-936.85 ppm, respectively with application of NPK only (control). By application of different soil amendments the grain yield increased by 10.93 to 63.95 per cent and iron content in plant reduced by 2.73 to 43.04 per cent over control. Among the soil amendments lime and zinc were found superior to other soil amendments. However, fly ash, a by product of thermal power plant with high silica content can be used as a low cost amendment for correction of iron toxicity.Keywords
Iron Toxicity, Tolerance to Iron, Soil Amendments, Integrated Approach.- Effect of Different Modes and Forms of Nitrogen Application on Productivity and Nitrogen Use Efficiency of Rice in the North-Eastern Coastal Plain Zone of Orissa
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Authors
Affiliations
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
2 Central Institute for Cotton Research, Regional Station, Marutha Mallain Main Road, Coimbatore (T.N.), IN
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
2 Central Institute for Cotton Research, Regional Station, Marutha Mallain Main Road, Coimbatore (T.N.), IN
Source
An Asian Journal of Soil Science, Vol 3, No 2 (2009), Pagination: 293-296Abstract
A field experiment was conducted during 2005 and 2006 in the Research Farm of the Regional Research Station, Motto of North Eastern Coastal plain zone of Orissa to study the performance of different forms of urea viz., Prilled Urea (PU), Nimin Coated Prilled Urea (NCPU), Urea Super Granule (USG) and combination of both USG and PU on yield and nitrogen use efficiency of rice. Results revealed that application of 57 kg N ha-1 as USG at 7 Days after transplanting (DAT) and 19 kg N ha-1 as PU at PI stage resulted in maximum grain and straw yields, maximum N uptake and agronomic N use efficiency. Application of USG 57 and 76 kg N ha-1 registered significantly higher grain yield over PU by 26% and 18%, respectively. Application of NCPU and USG improved the N uptake, agronomic N use efficiency and apparent N recovery over PU application.Keywords
Urea Super Granule, Nimin Coated Prilled Urea, Prilled Urea, Nitrogen Use Efficiency.- Effects of Continuous use of Sewage Water on Soil pProperties and Plants
Abstract Views :184 |
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Authors
Affiliations
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
2 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
2 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
Source
An Asian Journal of Soil Science, Vol 4, No 2 (2010), Pagination: 158-164Abstract
Sewage water of Bhubaneswar city is being used as a source of irrigation in E-block of Central Farm, Orissa University of Agriculture and Technology, Bhubaneswar for cultivation of different crops since last three decades. A study was carried during 2005 to characterise sewage water (SW) and its impact on soil properties, essential nutrients and heavy metal content in leaf of crop plants. Sewage water samples, sewage water irrigated soils and leaf of plants of rice, mustard, sunflower, maize, tomato, grain amaranthus, cabbage, cauliflower, brinjal, lady’s finger and water hyacinth(sewage channel) were collected and analysed for different plant nutrients and heavy metals. The data revealed that SW samples were non saline, acidic in reaction (pH 6.5-6.89) and had optimal level of BOD (48-55 mgl-1) and COD (90 -105 mg l -1).The concentration of cations were in the order of Ca >Mg >Na >K. Residual sodium carbonate was nil. Based on SAR and EC rating, SW belonged to C1S1 category. Concentration of NH4-N, NO3-N, PO4, Zn and B ranged from 48.3-52.6, 8.1-8.3, 2.4-2.5, 1.5-2.5 and 0.7-0.75 mgl-1, respectively. Concentration of heavy metals was in the order of As > Pb >Hg >Ni >Co > Cd >Se. Available N, P2O5, K2O and SO4-S content of sewage water irrigated soils were higher than normal soil. The DTPA extractable Fe, Mn, Zn, Cu, Mo and B ranged between 63.3 to 122.2,13.4 to 62.6, 3.6 to 44.7 ,2.4 to 11.6, 3.8 to 4.0 and 0.52 to 1.15 mgl-1 in SW soils and 60.6,15.1,0.8 ,0.8,0.6 and 0.52 mgl-1 in normal soil, respectively. DTPA extractable heavy metals in SW soils were in order of As >Se > Pb > Cr >Ni >Hg > Cd. The leaf of crop plants grown in SW soils had toxic amounts of Fe, B and Mo. Toxic concentration of Zn and Cu were present in cabbage and cauliflower only. The concentration of Cd, Pb and Cr in rice, mustard, sunflower, maize, tomato, grain amaranthus, cabbage, cauliflower, brinjal and lady’s finger were below upper level of phytotoxicity. Maximum accumulation of Co and Hg was in cabbage and cauliflower. Grain amaranthus and water hyacinth contained higher amount of Ni and Se. Contents of heavy metals in leaf of crops grown in normal soils were lower than SW irrigated soils. Based on ISI standard, it is recommended to use sewage water of Bhubaneswar for irrigation after pre-treatment.Keywords
Sewage Water, Sewage Irrigated Soils, Micronutrients, Heavy Metals.- Effect of Lime on the Changes in Adsorbed and Soluble Sulphate in Alfisols of Orissa
Abstract Views :166 |
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Authors
Affiliations
1 Department of Soil Science and Agricultural Chemistry, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
2 Department of Soil Science and Agricultural Chemistry, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
1 Department of Soil Science and Agricultural Chemistry, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN
2 Department of Soil Science and Agricultural Chemistry, Orissa University of Agriculture and Technology, Bhubaneswar (Orissa), IN