MARC details
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| fixed length control field |
04294nam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20240213101006.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
070528s19uu xx 00 eng d |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CvSU Main Campus Library |
| 041 0# - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
eng |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
633.18 |
| Item number |
C27 1978 |
| 100 #0 - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Castroverde, Yolanda Lamanug |
| Relator term |
author |
| 9 (RLIN) |
42546 |
| 245 10 - TITLE STATEMENT |
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| Title |
Effects of the different tillage techniques on the efficiency of weed control and nitrogen uptake in transplanted rice / |
| Statement of responsibility, etc. |
by Yolanda Lamanug Castroverde. |
| 260 0# - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Los Baños, Laguna : |
| Name of publisher, distributor, etc. |
University of the Philippines, |
| Date of publication, distribution, etc. |
1978. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
83 pages: |
| Other physical details |
illustrations ; |
| Dimensions |
28 cm. |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| Carrier type term |
volume |
| 500 ## - GENERAL NOTE |
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| General note |
Thesis (M.S. - - Agronomy) University of the Philippines, College, Laguna. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographical references. |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
<br/>CASTROVERDE, YOLANDA LUMANUG, University of the Philippines at Los Banos, October, 1978. Effects of the Different Tillage Techniques on the Efficiency of Weed Control and Nitrogen Uptake in Transplanted Rice. Major Professor: Dr. Basilio B. Mabbayad.<br/><br/>Two field experiments were conducted at the Central Experiment Station, University of the Philippines at Los Banos during the wet season of 1977 with the following objectives: (1) to find out the grain yield response of IR-36 to the different tillage techniques; (2) to evaluate the efficiency of chemicals as substitutes for land preparation of transplanted IR-36; and (3) to determine the effect of the different levels of nitrogen fertilizer applied at different times on the growth and yield of C168-134.<br/><br/>Experiment I was a comparative study of the six tillage techniques and their effect on the efficiency of weed control, yield and other agronomic characters of IR-36.<br/><br/>Results indicated that except for the grain yield, and number of filled grains per panicle, all of the yield components were not significantly affected by the different tillage techniques. The highest mean yield (5122 kg/ha) was obtained from the minimally tilled plote (dalapon applied 2.5 kg/ha 15 DBI; dalapon at 2.5 kg/ha after 5 days; paraquat at 0.5 kg/ha after 5 days; followed by one plowing and one harrowing), and the lowest from the no-till plots.<br/><br/>The yield reduction could be attributed to the presence of large regrowth of F. littoralis that were not controlled effectively by the preplant herbicide treatments. The mean yield obtained from the conventional-tilled plots was 5002 kg/ha.<br/><br/>Experiment 2 was a comparison of the three tillage techniques as affected by the time and rate of fertilizer application and their effect on the efficiency of weed control and nitrogen uptake, yield and other agronomic characters of C168-134, rice variety.<br/><br/>Statistical analysis revealed that tillage techniques and fertilizer treatments significantly affected grain yield. Among the tillage techniques used and the fertilizer treatments applied, minimal and zero tillage plots produced greater mean yields (4288 kg/ha and 4069 kg/ha, respectively). The mean yield of the conventionally-tilled plots was only 3825 kg/ha, The increased grain yield in the zero and minimal tillage plots was attributed to the presence of weeds which were small in size hence, less competitive as to reduce yield. Results of the study offer no<br/>possible explanation for the yield reduction in the conventional tillage plots hence further study along this line is recommended.<br/><br/>The results of these studies indicated that it is possible to practice minimal tillage as a substitute for conventional tillage depending upon the weed species present, fertility status of the soil, and other production factors which may affect the efficiency of using the different tillage techniques.<br/> |
| 541 ## - IMMEDIATE SOURCE OF ACQUISITION NOTE |
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| Method of acquisition |
Submitted to the University Library |
| Date of acquisition |
April 29, 1988 |
| Accession number |
T-1132 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Rice |
| 9 (RLIN) |
5672 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Tillage |
| 9 (RLIN) |
30640 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Fertilizers and manures |
| 9 (RLIN) |
9069 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Weed control |
| 9 (RLIN) |
17600 |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) |
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| 9 (RLIN) |
1421 |
| Course or Program |
Master of Science |
| Major |
Agronomy |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Mabbayad, Basilio B. |
| 9 (RLIN) |
42370 |
| Relator term |
adviser |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
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| Electronic File |
<a href="http://library.cvsu.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=e0375d99b969589d0f5f8ce8e8996d25">http://library.cvsu.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=e0375d99b969589d0f5f8ce8e8996d25</a> |
| Link text |
Click here to view thesis abstract and table of contents |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Theses / Manuscripts |
