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Rajani, A. V.
- Dynamics of Copper Fractions in a Calcareous under Aicrp-ltfe Soils
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Authors
Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Janagadh (GUJARAT), IN
2 Department of Agricultural Chemistry and Soil Science, unagadh Agricultural University, Janagadh (GUJARAT), ID
3 Department of Agricultural Chemistry and Soil Science, unagadh Agricultural University, Janagadh (GUJARAT), IN
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Janagadh (GUJARAT), IN
2 Department of Agricultural Chemistry and Soil Science, unagadh Agricultural University, Janagadh (GUJARAT), ID
3 Department of Agricultural Chemistry and Soil Science, unagadh Agricultural University, Janagadh (GUJARAT), IN
Source
An Asian Journal of Soil Science, Vol 8, No 2 (2013), Pagination: 279-282Abstract
No AbstractKeywords
Ltfes Soil, Ce Fraction, Water Soluble-cu, Exchangeable-cu, Dtpa Available- Cu, Total- Cu, Per Cent Available-cu)References
- Lal, S. and Mathur, B.S. (1989). Effect of long term fertilization mainly and liming of an Alfisol on maize, wheat and soil properties. I Maize and wheat. J. Indian Soc. Soil Sci., 37(3) : 721-724.
- Naria, J.N., Golakiya, B.A., Polara, J.V. and Rajani, A.V. (2008). Paper under communication in J. Guj. Soc Agron and Soil Sci.,
- Patel, V.R. (1998). A comparative evaluation of organic, inorganic and integrated nutrient management system. Ph.D. Thesis submitted to Gujarat Agricultural University, SARDARKRUSHINAGAR, GUJARAT (INDIA).
- Prasad, B. and Singh, A.P. (1980). Change in soil properties with long term use of fertilizer, Lime and Farm Yard manure. J. Indian Soc. Soil Sci., 28(4): 465-468.
- Tandon, H.L.S. (1991). Secondary and micronutrient in Agriculture, FDCO, New Delhi, pp. 122.
- Dynamics of Manganese Fractions in the LTFE’s Soils
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Authors
Affiliations
1 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
2 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
1 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
2 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
Source
An Asian Journal of Soil Science, Vol 4, No 1 (2009), Pagination: 4-7Abstract
Surfaces soil samples (0-15 cm) were collected to study the dynamics of Mn fractions in the selective treatments of the LTFE’s conducted on groundnut-wheat-fodder sorghum at Instructional Farm, Junagadh Agricultural U1,iversity, Junagadh, during the year 1979-80 (1st year), 1989-90 (10th year) and 1999-2000 (20th year) after completion of crop cycle. The selected treatments were T1-Control, T2-FYM @ 25t/ha at an interval of 3 years, T3-1/2 RD of NP, T4-1/2 RD of NP + K, T5-RD of NP and T6-RD of NP+K to respective crops. The water soluble Mn was found very trace. Exchangeable form of Mn differs significantly only at 1st year and after 20lh year only. Remarkable decreased in exchangeable form of Mn was noticed in treatments without application of chemical fertilizers after 20th year. The control and FYM application recorded the highest values of DTPA-Mn at 1st and 20th year, and it was recorded highest (7.241 ppm) at 10th year in treatment T6. Overall increase in reducible form of Mn was found, but it was non significant when pooled over year. Overall mean registered an increase in total Mn content on the long run basis. After 20th year residual Mn decline in T1 whereas in other treatments. it was declined at 10lh and increased at 20th year. Per cent available of Mn increased up to 10lh year and then it was decreased. There was overall increase in total available form of Mn after a long run.Keywords
Mn Fraction, Water Soluble-Mn, Exchangeable-Mn, DTPA-Mn, Total Available-Mn, LTFE’S Soil.- Dynamics of Iron Fractions in the LTFE’s Soils
Abstract Views :196 |
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Authors
Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
Source
An Asian Journal of Soil Science, Vol 4, No 1 (2009), Pagination: 43-45Abstract
The dynamics of Fe fractions in the selective treatments were studied by collecting the surface soil samples (0-15 cm) from the LTFE’s conducted on groundnut-wheat-fodder sorghum at instructional farm, Junagadh Agril. University, Junagadh during the year 1979-80 (1st year), 1989-90 (10th year) and 1999-2000 (20th year) after completion of crop cycle. The selected treatments were T1-Control, T2-FYM @ 25 t/ha at an interval of 3 years, T3-½ RD of NP, T4-1/2 RD of NP+K, T5-RD of NP and T6-RD of NP+K to respective crops. On a long run, after 20th year the values of water soluble-Fe were recorded highest in T2 (0.722 ppm) and T1 (0.504 ppm) and the lowest in T5 (0.082 ppm) and T3 (0.130 ppm). The significantly highest exchangeable-Fe was recorded in T5 (2.084 ppm), at 10th year. The DTPA available and reducible Fe was found significantly higher under T1 and T2, while application of fertilizer registered mostly a decline in long term at 20th year. The total and residual-Fe content did not showed any significant differences either through treatment or through years. The percentage availability and available total-Fe were not affected significantly in pooled years, but Y x T interaction was found significant and in the initial years T5 and T6, while in the 20th years T1 and T2 recorded the highest values.Keywords
LTFE’s Soil, Fe Fraction, Water Soluble-Fe, Exchangeable-Fe, DTPA Available-Fe, Total-Fe, Per cent Available-Fe.- Dynamics of Copper Fractions in the LTFE's Soils
Abstract Views :170 |
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Authors
Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
Source
An Asian Journal of Soil Science, Vol 4, No 1 (2009), Pagination: 102-105Abstract
The dynamics of Cu fractions in the selective treatments were studied by collecting the surface soil samples (0-15 cm) from the L TFE’s conducted on groundnut-wheat-fodder sorghum at Instructional Farm, Junagadh Agril.University, Junagadh during the year 1979-80 (15t year), 1989-90 (10th year) and 1999-2000 (20th year) after completion of crop cycle. The selected treatments were T1-Control, T2-FYM @ 25 t/ha at an interval of 3 years, T3-½ RD of NP, T4-1/2 RD of NP+K, T5-RD of NP and T6-RD of NP+K to respective crops. The water soluble-Cu varied significantly in pooled results and the highest values were recorded in T5 (0.119 ppm) followed by T4 (0.115 ppm). Exchangeable form of Cu did not differ significantly during individual years and in pooled results. The RD of fertilizers + potassium (T6) recorded the highest value of DTP A-Cu at initial and 10th year and triggering utilization in long run rendering lower value at 20th year. Reducible-Cu was not affected significantly in pooled results, but untreated control (T1) recorded the highest value (0.269 ppm) at 20th year. Total and residual form of Cu content remain unaffected by different treatments during individual years and in pooled results, however, there was distinct numerical reduction in total and residual form of Cu over the year. Application of fertilizers enhanced utilization of available total-Cu, while conversion of total to available form and under utilization in T1 (1.907 ppm) and T2 (1.947 ppm) resulted in higher values after 20th year. The per cent availability of Cu content increased from initial to 20th year crop cycles in untreated control (T1) and FYM (T2) treatments.Keywords
LTFE’s Soil, Cu Fraction, Water Soluble-Cu, Exchangeable-Cu, DTPA Available-Cu, Total-Cu, Per cent Available-Cu.- Dynamics of Zinc Fractions in the LTFE’s Soils
Abstract Views :153 |
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Authors
Affiliations
1 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
2 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
1 Krishi Vigyan Kendra, Junagadhh Agricultural University, Jamnagar (Gujarat), IN
2 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
Source
An Asian Journal of Soil Science, Vol 4, No 1 (2009), Pagination: 143-145Abstract
Surfaces soil samples (0-15 cm) were collected to study the dynamics of Zn fractions in the selective treatments of the LTFE’s codducted on groundnut-wheat-fodder sorghum at Instructional Farm, Junagadh Agricultural University, Junagadh during the year 1979-80 (15t year), 1989-90 (10th year) and 1999-2000 (20th year) after completion of crop cycle. The selected treatments were T1-Control, T1-FYM @ 25t/ha at an interval of 3 years, T3-1/2 RD of NP, T4-1/2 RD of NP + K, T5-RD of NP and T6-RD of NP+K to respective crops. The water soluble Zn was present in negligible quantity. Exchangeable forms of Zn differed significantly only at 20th year and also in pooled over years. Potassium enhanced the utilization of exchangeable form of Zn. The RD of fertilizers recorded the highest value of DTP A-Zn at initial and 10th year and triggering utilization in long run thereby rendering differences non significant at 20th year. Total Zn content did not differ significantly, while residual form of Zn was found significantly highest in T3 (38.171 ppm). The total available-Zn and Zn-per cent availability were not influenced significantly by different treatments in pooled results, but Y x T interactions were found significant and the highest values were recorded in T1-(3.648 ppm) and T2 (3.559 ppm), respectively after 20th year crop cycle.Keywords
LTFEE’S Soil, Zn Fractions, Water Soluble-Zn, Exchangeable-Zn, DTPA-Zn, Total Available-Zn, Per cent Available-Zn.- Dynamics of Potassium Fractions in a Calcareous Vertic Haplustepts Under AICRP-LTFE Soils
Abstract Views :182 |
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Authors
Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Cotton Research Centre, Junagadh Agricultural University, Junagadh (Gujarat), IN
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Cotton Research Centre, Junagadh Agricultural University, Junagadh (Gujarat), IN
Source
An Asian Journal of Soil Science, Vol 5, No 1 (2010), Pagination: 55-59Abstract
The application of FYM also maintained or increased potassium status of LTFE soils. In treatments of FYM (T8 and T9), the status of potassium fractions increased. There was overall decrease in available-K2O status of LTFE soils after 8 year, except in treatments which received FYM (T8 and T9), where K2O status of soil increased as compared to initial status. Water soluble-K also decreased in LTFE soil after a span of 8 years, except in treatments which received FYM (T8 and T9). Same results were also recorded in case of exchangeable-K, HNO3 soluble-K, reserve-K and total-K, here also approved that for maintaining K fertility of soil at long run, it is essential to add organic fertilizer with inorganic ones for maintaining available potassium level in soil, application of organic manure is essential. In fact, all fractions of potassium decreased after a long run in intensive cropping of LTFE soils without addition of FYM. So it is alarming us to use organic fertilizer with inorganic one for maintaining K fertility status of soil in long run. At initial stage of experiment (1st year) available-K2O status of LTFE soils showed high category (> 280 Kg K2O ha-1), but after long run (8th year) it decreased to medium category (140-280 Kg K2O ha-1), except in treatment of FYM application (T8 and T9), where increment in K2O level was found rather than its depletion. Further it was established that, FYM is essential for maintaining soil fertility at long run. Similar results were also recorded in case of all other fractions of potassium.Keywords
Potassium Fractions, AICRP-LTFE Soils, Total Potassium, Available Potassium, Nitric Acid Soluble Potassium (1N HNO3 Soluble K), Exchangeable Potassium, Reserve Potassium, Total Potassium.- Dynamics of Phosphorus Fractions in a Calcareous Vertic Haplustepts Under AICRP-LTFE Soils
Abstract Views :169 |
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Authors
Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Agricultural Statistics, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN
4 Cotton Research Centre, Junagadh Agricultural University, Junagadh (Gujarat), IN
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Agricultural Statistics, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN
4 Cotton Research Centre, Junagadh Agricultural University, Junagadh (Gujarat), IN
Source
An Asian Journal of Soil Science, Vol 5, No 1 (2010), Pagination: 83-89Abstract
Available status of P in LTFE soils was decreased after long run, but that was also increased in treatments where FYM application was there i. e. T8 and T9. There was overall increase in inorganic-P and total-P status, but status of available-P decreased due to calcareous soil, but due to chelating effect of organic material in treatments T8 and T9 there was increase in the availability of phosphorus after long run in the LTFE soils. Available-P status of LTFE soil at initial stage was low in category (<28 Kg P2O5 ha-1) in most of the treatments, after long run (8th year) it was more decreased except in treatments which were received FYM (T8 and T9). Due to application of FYM available status of P2O5 in LTFE soil increased up to high category (>56 Kg P2O5 ha-1) from low category. After a span of 8 years most of the fractions of phosphorus depleted negatively i.e. increased in status, but there was also found positive depletion in case of Al-P, Fe-P, Ca-P and available-P, it might be attributed to transformation of phosphorus and plant uptake as an available-P. Application of FYM also prevents depletion in available-P status of soil.Keywords
AICRP-LTFE Soils, Total Phosphorus, Total Inorganic Phosphorus, Organic Phosphorus, Fractions of the Inorganic-P, Saloid Bound-P, Al-P, Fe-P, Reductant Soluble-P, Occluded-P And Calcium-P.- Dynamics of Sulphur Fractions in a Calcareous Vertic Haplustepts Under AICRP-LTFE Soils
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Authors
Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Agricultural Statistics, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Cotton Research Centre, Junagadh Agricultural University, Junagadh (M.S.), IN
4 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
5 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Agricultural Statistics, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Cotton Research Centre, Junagadh Agricultural University, Junagadh (M.S.), IN
4 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
5 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN
Source
An Asian Journal of Soil Science, Vol 5, No 1 (2010), Pagination: 122-127Abstract
In case of sulphur status of LTFE soils, FYM played a vital role. It maintained availability of sulphur in soils, but more increment after a long run was observed in T11, where P source was SSP which contains 13% S. Total-S content of LTFE soils increased after a span of 8 years, but it was reversed in case of heat soluble-S, that was decreased after 8 years, except in treatments which received FYM and inorganic-P as a SSP (13% S). It was required to apply S fertilization every year and application of FYM for maintaining available status of soils at long run. Water soluble fraction of sulphur declined very much after 8 years of groundnut-wheat cropping sequence as compared to initial status, but it remained stable in treatments T4 and T11 which received sulphur from outside sources like ZnSO4 and SSP. Whereas organic-S status of LTFE soils increased after a span of 8 years, it might be due to incorporation of plant residues to the soils from crop ischolar_mains and stubbles. Sulphate-S in LTFE soils increased after 4th year and then remained stable except in T2 and T3 where depletion in this fraction was noticed perhaps due to the interaction with phosphorus. Non-sulphate-S fraction found significantly the highest in the treatments which received sulphur from outside as ZnSO4 and SSP (T4 and T11). In case of heat soluble-S, there was overall decrease in soil status after 4th year as compared to initial status and after word it maintained level with initial status, but in treatments of FYM and SSP it was increased as compared to initial status after 8th year of experiment. Whereas total-S status of LTFE soil increased after a span of 8 years. The increment was more in treatments which were received sulphur from fertilizer sources i.e. T4 and T11. It was required to apply S fertilization every year and application of FYM for maintaining available status of soils at long run. Depletion per cent of sulphur noted positive in case of water soluble-S and it was negative or very low in treatments which received sulphur from fertilizers i. e. T11 and T4. Most of the other fractions of sulphur were not depleted in most of the treatments.Keywords
AICRP-LTFE Soils, Sulphur Fractions, Total Sulphur, Organic Sulphur, Sulphate Sulphur, Water Soluble Sulphur, Heat Soluble Sulphur, Non-Sulphate Sulphur.- Dynamics of Nitrogen Fractions in a Calcareous Vertic Haplustepts Under AICRP-LTFE Soils
Abstract Views :193 |
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Authors
Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Agricultural Statistics, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Cotton Research Centre, Unagadh Agricultural University, Junagadh (Gujarat), IN
4 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Agricultural Statistics, Junagadh Agricultural University, Junagadh (Gujarat), IN
3 Cotton Research Centre, Unagadh Agricultural University, Junagadh (Gujarat), IN
4 Department of Bio Chemistry, Junagadh Agricultural University, Junagadh (Gujarat), IN