Modeling agrochemical transport in undisturbed soil column using chloride as tracer / (Record no. 16601)
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| 000 -LEADER | |
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| fixed length control field | 02252nam a22001697a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20251121155705.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 211015b |||||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MMSU |
| Transcribing agency | ULS |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Aducal,Judy Ann C. |
| 245 ## - TITLE STATEMENT | |
| Title | Modeling agrochemical transport in undisturbed soil column using chloride as tracer / |
| Statement of responsibility, etc. | Judy Ann C. Aducal ... et.al |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Date of publication, distribution, etc. | 2020 |
| Place of publication, distribution, etc. | City of Batac : |
| Name of publisher, distributor, etc. | MMSU, |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | xvi,62 leaves ; |
| Dimensions | 28 cm. |
| 500 ## - GENERAL NOTE | |
| General note | Thesis (BS in Agricultural Engineering) -- Mariano Marcos State University -- College of Engineering, City of Batac, 2020. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | ABSTRACT ADUCAL, JUDY ANN C., CALAPINI, SHERWAIN R., DE LEON, ELWIN NINA A. 2020. Modeling Agrochemical Transport in Undisturbed Soil Column Using Chloride as Tracer. Undergraduate Thesis. College of Engineering. Mariano Marcos State University, City of Batac 2906 Ilocos Norte. 41 pp. Adviser. Dr. Nathaniel R. Alibuyog One of the issues that affect agriculture production is harmful agrochemicals. Agrochemicals are the various chemical products that are used in agriculture. In most cases, the term agrochemical refers to the broad range of pesticide, insecticide, herbicide, fungicide, and nematicides chemicals. This study determined the transport behavior of agrochemical solution in undisturbed soil samples using chloride as a tracer in a miscible experiment. The study was conducted at Mariano Marcos State University (MMSU) at Brgy. Quiling Sur, Batac City, Ilocos Norte Results showed that that breakthrough curve (BTCs) exhibited sharp peaks with gradual concentration decrease ahead of the solute fronts. Likewise, the BTCs was best modeled by the two-region transport model with an R0.98. The optimized model parameters showed soil dispersion coefficient (D) ranges from 1.655 cm/min to about 9.318 cm/min while soil dispersivity (.) varies from 6,4011 cm to 38.493 cm. The partitioning coefficient (B) and the mass transfer coefficient (o) also showed wide variability. Finally, the study showed that in lower concentration of chloride the convection mechanism has an important role in transport and, in increasing initial concentration, the role of dispersion and diffusion mechanism becomes more pronounced. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Thesis/Dissertation |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Inventory number | Barcode | Date last seen | Price effective from | Koha item type | Public note |
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| MMSU Main Library | MMSU Main Library | Theses and Dissertation Section | 10/15/2021 | 5570 | 5570-UThesis | 10/15/2021 | 10/15/2021 | Thesis/Dissertation | Room use only |