Efficiency of trifluralin use as influenced by rate and method of application
Date
5-1978
Degree
Bachelor of Science in Agriculture
Major Course
Major in Agronomy
College
College of Agriculture and Food Science (CAFS)
Adviser/Committee Chair
Beatriz L. Mercado
Abstract
The efficiency of trifluralin (a,a,a-trifluoro- 2,6-dinitro-N,Ndipropyl-p-toulidine), as influenced by rate (0, 0.25, 0.50, 1.0 and 2.0 kg/ha) and method of application (soil mixed, surface applied and simulated harrow) was studied using rice as test plant.
Trifluralin cause stunting, inhibition of root growth and reduction of fresh and dry weights of roots and shoots of rice seedlings. this inhibitory effect of trifluralin was noted in all rates and methods of application. However, greater retardation of growth was observed in higher rates and when application was done by either soil mixed or simulated harrow method.
Injury ratings taken at 14 and 35 days after sowing showed that the maximum damage occured at 2.0 kg/ha rate of application. Application at 1.0 kg/ha rate was as effective as 2.0 kg/ha in causing phytotoxicity when applied by simulated harrow method.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
LG 993.5 1978 A42 T46
Recommended Citation
Tengco, Rogelio L., "Efficiency of trifluralin use as influenced by rate and method of application" (1978). Undergraduate Theses. 8695.
https://www.ukdr.uplb.edu.ph/etd-undergrad/8695
Document Type
Thesis