Tillage practices in corn Corn production after rice offers opportunities for increasing the productivity and income of farmers. However, high cost during land preparation reduce the net benefits for the farmers. Zero tillage provides farmers higher returns as it minimizes the cost of labor and other farm inputs during land preparation. Zero tillage technology, therefore, is a viable option for corn production after rice in Mindoro Occidental. In the case of Camarine Sur, high yield can be obtained using conservation tillage practices compared with farmer’s tillage practice. Between the two conservation tillage practices tested, highest net return mainly due to lower production costs was achieved with zero tillage than with minimum tillage in Camarines Sur. On the other hand, no significant variation was observed on the performance of the recommended varieties applied with different tillage management. Conservation tillage technology therefore, offers opportunities for increasing the productivity and income of farmers. This practice, combined with appropriate management, will also increase farm stability and sustainability. Literature Cited Biamah, E.K.; Rockstrom, J. and Okwack, G. (2000). Conservation Tillage For Dryland Farming: Technological options and experiences in Eastern and Southern Africa. Regional Land <strong>Management</strong> Unit, RELMA/Sida, ICRAF House, Gigiri. Nairobi, Kenya. Eusebio, J.A. and Labios, R.V. (2001). Food Security: Integrated Farming Systems (With Environment Friendly Approaches). Published by JMC Press, Inc. Quezon City, Philippines. Distributed by Goodwill Bookstore, Philippines. 312 pp. (ISBN 971-11-1126-X) Gomez A.A.; Swete, D.E.; Kelly and Baril, T.A. (1998).Catalogue of Conservation Practices for Agriculture on Sloping Land. SEARCA, College, Laguna, Philippines Labios R.V.; Villancio, V.T.; Labios, J.D.; Salazar, A.M. and Delos Santos, R.E. (1997). Development of alternative cropping patterns in rainfed lowland areas with small farm reservoirs. The Philippine Agriculturist, Vol 80 No 3 & 4: 187-199. Labios, R.V.; Cayabyab, B.F.; Villancio, V.T.; Labios, J.D.; Tamisin Jr., L.L.; Limosinero, R.L. and De Chavez, D.M. (1998). Corn production and management in paddy fields: cases in Camiling, Tarlac and Malasiqui, Pangasinan. Published by FSSRI-UPLB, DA-BAR and PCARRD 52 pp. (ISBN 971- 8778-11-X). Labios R.V.; Robles, A.Y.; Javier, P.A.; Garcia, M.U.; Gonzales, P.G.; Luis, E.M.; Labios, J. D.; Medina, C.M.; Valencia, G.Z.; Tamisin Jr., L.L.; Ocampo Jr., E.P. and D.M. Miciano. (2000). Annual Report. Enhancing Adaptation and Utilization of Location-Specific Corn-Based Technologies in Major Corn Growing Areas. FSSRI-UPLB, USM, ViSCa, DA-BAR. Labios R.V.; Robles, A.Y.; Javier, P.A.; Garcia, M. U.; Gonzales, P.G.; Luis, E.M.; Labios, J. D.; Medina, C. M.; Valencia, G. Z.; Tamisin Jr., L.L.; Ocampo Jr., E.P.; Miciano, D. M.; Balbarino, E. A.; Serohijos, R. C.; Bulayog, S.B.; Bantugan, S.C.; Sebial, M.C.; Ayaso, R.B.; Dayap, F.T.; Guevarra, A.; Sacay, M.; Villanobos, Z.; Pedraza, J.D.; Tisado, M.; Daza, R.; Oraño, F.V. and A. Gundemaro. (2001). Union, Mahaplag, Leyte Eastern Visayas. Progress Report. Enhancing Adaptation and Utilization of Location-Specific Corn-Based Technologies in Major Corn Growing Areas. FSSRI-UPLB, ViSCa, DA-BAR. - 300 -
Labios et al. Labios R.V.; Robles, A.Y.; Javier, P.A.; Garcia, M.U.; Gonzales, P.G.; Luis, E.M.; Labios, J.D.; Medina, C.M.; Valencia, G.Z.; Tamisin Jr., L.L.; Ocampo Jr., E.P.; Miciano, D.M.; Sales, H.M.; Delos Santos, E.B.; Cambaya, R.C.; Dela Trinidad, E.C.; Nacario, E.C.; Bordado III, G.H. and Portugal, J.C. (2001). Calabanga Camarines Sur Annual Report. Enhancing Adaptation and Utilization of Location- Specific Corn-Based Technologies in Major Corn Growing Areas. FSSRI-UPLB, DA-BAR MONSANTO. Undated. Tipid-Saka Program. Conservation Tillage <strong>Crop</strong> Systems. Monsanto Philippines, Inc. 7 th F Ayala Life FGU Center, Madrigal Business Park, Alabang, Muntinlupa City. Peet, M. (2001). Sustainable Practices for Vegetable Production in the South. Http://www.cals.ncsu.edu/sustainable/peet/tillag/c03tilla.html Triplett Jr., G.B. (1976). The Pro’s and Con’s of Minimum Tillage in Corn. Published as Journal Article No. 188-76 Ohio Agricultural Research and Development Center, Wooster, Ohio 44691. Veseth, R.; Vomocil, J.; MCDole, B. and Engle, C. (2001. Effective Conservation Farming Systems. Http://pnwsteep.wsu.edu/Tillage_Handbook/Chapter 2/020486.html. - 301 -
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