AI SearchDepth of liming of very acid soils (Record no. 26669)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04522nam a2200445 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818090036.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 140198 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10187492 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. 842 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Garcia, Felipe V. |
| 245 10 - TITLE STATEMENT | |
| Title | Depth of liming of very acid soils |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1975 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 62 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. 842 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science at the Asian Institute of Technology, Bangkok, Thailand . |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 1975 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This research was conducted to investigate the effect of depth of liming on pH of the underlying not limed soil layers of a very acid soil classified as acid sulphate soil. The experiment was carried out by means of 50-cm. tall soil columns, limed at varying depths namely; (i) 0-cm. (ii) upper 15-cm. and (iii) upper 30-cm. layer and followed by leaching with distilled water at a 4-day interval for a period of four months. Calcium carbonate chemical powder was used at the amounts of 13 grams and 26 grams per soil column of known weight of 2885 grams. Leachate was collected during the entire leaching period. The effect of liming on some chemical properties of the leachate was studied. __it was find that narrow and straight line relationships exist between EC, S04 and Ca++ in all treatments. The most narrow relationship occurs between Ca++ and EC. Thus, the EC of the leachate can be used to predict the approximate amounts of ca++ and to some extent so4- that would be leached out from an acid sulphate soil only if CaC03 is mixed with the soil. The effect of depth of liming on soil pH varies a good deal. Statistical analyses had revealed that CaC03 application had not influenced an appreciable pH increase in all layers of soil columns that received surface liming. A highly significant pH increase had been restricted mainly to the limed layers as well as to the 5-cm. layer underlying the limed layer of soil columns that were limed at the upper 15-cm. and upper 30-cm. layers. However, higher pH increase at the 5-cm. unlimed layer had been observed in soil columns that were limed at the upper 15-cm. layer than those that received lime at the upper 30-cm. layer. The influence of amount of liming on pH was also compared. The existence of a positive effect was observed mainly at the limed layers with the exception of the 5-cm. unlimed layer adjacent to the limed layer of soil columns receiving lime at the upper 30-cm., where the higher amount of liming gave significantly higher pH than the lower amount of liming. Tests were also carried out on the amount of adsorbed calcium from various treatments. As revealed by statistical analyses, there appears to be a significant increase in adsorbed Ca at the same layers where there was a significant increase in pH including the whole soil column that received 13 grams of Caco3 on the surface. The results obtained do not seem to reflect the actual value of Ca that is truly in exchangeable form because of the presence of undissolved CaC03 in the lime-treated columns. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Soil acidity |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Liming of soils |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Balasubramaniam, A.S., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Paiboon Prabuddham, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Petersen, J. L., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Moh, Za-Chieh, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Brand, E.W., |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Canadian Government, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. 842 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B24092">http://203.159.5.9/ait-thesis/detail.php?q=B24092</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10187492 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 260514 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 3 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003036877 |
| CREATED | CREATED : 1995-10-13 |
| RECORD Id | RECORD # : i10223988 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003036885 |
| CREATED | CREATED : 1995-10-13 |
| RECORD Id | RECORD # : i1022399x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160091947 |
| CREATED | CREATED : 2016-04-27 |
| RECORD Id | RECORD # : i1295570x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. 842 | 30050003036877 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. 842 | 30050003036885 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. 842 | 30050160091947 | 18/08/2026 | 18/08/2026 | 40-Archives |