Mariano Marcos State University :: Batac City, Philippines

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MMSU SCIENCE AND TECHNOLOGY JOURNAL

(Official Scientific Peer-Reviewed Journal of the Mariano Marcos State University)
July - December 2007 • ISSN 2012 0060 • Volume 1. No. 1 2007
S&T Journal is a semi-annual publication of the Mariano Marcos State University

Editorial Advisory Board
Miriam E. Pascua, Ph.D.	Stanley C. Malab, Ph.D.
Nancy GB. Balantac, Ph.D.	Heraldo L. Layaoen, Ph.D.
Ramon A. Lea�o, LIb	Epifania O. Agustin, Ph.D.

University Review Board
Miriam E. Pascua, Scientist I	Stanley C. Malab, Scientist I
Teresita F. Marcos, Scientist I	Julita R. Ungsom, Scientist I
Samuel S. Franco, Scientist II

Editorial Staff
Josephine R. Domingo, Ph.D. Editor-in-Chief
Leah C. Agbigay Managing Editor	Corazon Diana A. Pastor Evelyn Tapac Circulation Mabagers	Leah M. Tute Desktop Publisher

Reviewers for this Issue
Epifania O. Agustin, Ph.D. Jose T. Agustin, Ph.D. Artemio B. Alcoy, Ph.D. Facundo B. Asia, MS Isagani H. Cayabyab, MS	Carmenchita Coloma, Ph.D. Wilson R. Duldulao, MS Carmelo J. Esteban, Ph.D. Antonio R. Fari�as, Ph.D.	Jean B. Galat, Ed.D. Teresita F. Marcos, Ph.D. Jaime T. Salazar, DVM Sosimo Ma. Pablico, Ph.D.

CONTENTS
iv	Foreword
1	Alternative methds of controlling insect pests and diseases using botanical material and actagonists
11	Insect pests and natural enemies associated with the green manure Indigofera tinctora L in rice-based cropping systems in Ilocos Norte
18	On-farm trial on different nitrogen management schemes in rainfed lowland rice
30	Evaluation of MMSU fresh market tomato F1 hybrids for off-season production
43	Plant to plant yield variability of sweet potato (Ipomoea batatas (L) Lam) as affected by planting material an time of harvest
51	Branch marcotting propagation of some commercially-grown bamboo species
61	Development of bamboo tile maker machine
69	Performance of broilers fed with different levels of pigeonpea (Cajanuz Cagan L.) seed meal
75	Establishment of MMSU algal herbarium
85	Effects of feedback-based technique on students' problem-solving achievement in physics
96	Effectiveness of modularized instruction in kinematics
103	Development of validated computer simulated projectile motion experiments (C-SPEX)
111	Concept, attitude and involvement of rural women in leisure
128	Guidelines to contributors

Publications

science and technology journal