AI SearchComparative water management study at farm level in paddy and upland rice from the view point of yield (Record no. 19824)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04670nam a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817173417.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 190198 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10151655 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. 928 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Imtiyaz, Mohammad |
| 245 10 - TITLE STATEMENT | |
| Title | Comparative water management study at farm level in paddy and upland rice from the view point of yield |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1977 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 72 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. 928 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1978 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Present research work is based on water management in lowland paddy and UPLAND rice fields from view point of yield. This LITERATURE study is made according to varieties, method of cultivation, amount of fertilizer applied, amount of water applied during different stages of plant growth and assuming soil and climate are the same in both fields. In lowland paddy fields water is flooded throughout the crop growing period and in UPLAND rice fields limited amount of water is available for crop production, it is necessary to adopt the flood and drought tolerance varieties for paddy and UPLAND rice respectively for optimum benefit. Method of cultivation is also dependent upon the amounts of water available for crop production. Transplanting or broadcasting and drilling or broadcasting method of seeding are generally practiced in paddy and UPLAND rice fields respectively. Direct broadcasting method of seeding appears suitable in both fields for maximum possible benefit. Date of planting, seed rate and spacing also affect the grain yields. In UPLAND fields, marginal rate of return is calculated at different amounts of water applied and it was observed that the marginal rate of return decreases as amount of water applied increases. Hence for maximum benefit it is necessary to choose the proper amount of water for crop production. Marginal rate of return of yield is also a function of variety and amount of fertilizer applied. In UPLAND rice field, it was observed that when water is distributed over a number of fields instead of giving it all to one field, the total yield is more. But how much water is reduced from one field and used on the other fields is dependent on cultivation cost and government policy. The ratio of percent reduction in yield to the percent reduction in water is a function of varieties, soil, and climate and amount of fertilizer applied in the field. It was also observed that if fertilizer is used the water requirement can be reduced for the same production level. This means more water can be reduced from one field and used on the other fields with the application of fertilizer. It was observed that the intermittent method of flooding gives higher yield in lowland paddy field. It was also observed that paddy performance is a function of irrigation interval, varieties, amount of fertilizer applied and the depth of flooding in the fields. After a certain depth of water, the marginal rate of return of yield becomes negative, hence after a certain water depth it is necessary to drain the excess water from the fields. The performance in lowland paddy field does not simply depend on total amount of water but also depends on the amount of water applied at different stages of the crop. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Irrigation farming |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Apichart Anukularmphai, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | I, Fude, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nielsen, Jens Moller, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Thailand (King 's Scholarships), |
| 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. 928 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B22644">http://203.159.5.9/ait-thesis/detail.php?q=B22644</a> |
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| a | .b10151655 |
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| a | 250821 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
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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 : 30050003038477 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10178466 |
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| Barcode | Barcode : 30050003038451 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10178478 |
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| Barcode | Barcode : 30050160089222 |
| CREATED | CREATED : 2016-04-29 |
| RECORD Id | RECORD # : i12963161 |
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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 | 17/08/2026 | AIT Thesis no. 928 | 30050003038477 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | AIT Thesis no. 928 | 30050003038451 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no. 928 | 30050160089222 | 17/08/2026 | 17/08/2026 | 40-Archives |