Agronomic Evaluation of Chemical and Bio-Agents on Phosphorus Dynamics in Red Loam Soils of Southern Kerala (Record no. 25871)
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| fixed length control field | 02418nam a2200181Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220823105744.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 140128s9999 xx 000 0 und d |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 630 |
| Item number | VIS/AG |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Viswambharan K |
| 245 ## - TITLE STATEMENT | |
| Title | Agronomic Evaluation of Chemical and Bio-Agents on Phosphorus Dynamics in Red Loam Soils of Southern Kerala |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Vellayani |
| Name of publisher, distributor, etc. | Department of Agronomy, College of Agriculture |
| Date of publication, distribution, etc. | 1995 |
| 502 ## - DISSERTATION NOTE | |
| Degree type | PhD |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Three field experiments were conducted at the Instructional Farm, College of Agriculture, Vellayani during 1992-'93 for two season to study the effect of chemical and bio-agents on phosphorus dynamics in the red loam soils of Southern Kerala. In the experiment No.1 four treatments such as no anions, hydroxide, carbonate and silicate were tested under three levels of phosphorus such as no phosphorus, 50% phosphorus and 100% phosphorus. From the study, it was revealed that carbonates have more desorbing power for phosphorus than the other anions tested. These were reflected in the yield and yield attributes, available phosphorus content of the soil, soil phosphorus fractions, nitrogen and phosphorus uptake of plants. Among the combinations, carbonate anion with 50% phosphorus gave the highest yield. In the experiment No.2, three treatments such as no chelates, EDTA and DTPA were tested with three levels of phosphorus such as no phosphorus, 50 % phosphorus and 100% phosphorus. From the study it has been revealed that EDTA gave better response than other chelates tested. These were reflected in the yield, yield attributes, available phosphorus content of the soil, soil phosphorus fraction, nitrogen and phosphorus uptake of plants. Among the combinations EDTA with 50% phosphorus gave the highest yield. In the experiment No.3, four levels of microbial agents such as no microbes, VAM, PB and VAM + PB were tested with three levels of phosphorus such as no phosphorus. 50% phosphorus and 100% phosphorus. From the study it has been revealed that VAM + PB gave the highest response. This was reflected in the yield attributes, available phosphorus content of the soil, soil phosphorus fractions, nitrogen and phosphorus uptake of plants. Among the combinations VAM+PB with 50% phosphorus gave the highest yield. |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sasidhar V K (Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://krishikosh.egranth.ac.in/handle/1/5810155585 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Theses |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
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| KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 2014-03-18 | 630 VIS/AG | 170916 | 2014-03-18 | 2014-03-18 | Theses |