Effects Of Land Preparation And Postplanting Tillage On Weed Control And Cassava Yield

Veronica  L. Reoma,; Federico  G. Villamayor,

Effects Of Land Preparation And Postplanting Tillage On Weed Control And Cassava Yield

Federico G. Villamayor | Veronica L. Reoma

Abstract:

Two experiments were conducted to determine the effect of land preparation and postplanting tillage on weed control and cassava yield. The first experiment showed that weed biomass and cassava yield were not affected by the method of land preparation. Postplanting tillage, however, significantly affected weed biomass and root number but not root yield. The best three postplanting tillage treatments in the first experiment based on costs and returns, were further tested in a second experiment. Tillage involving off-barring 2 weeks after planting (WAP) followed by handweeding within the row 3 W AP and hilling-up 5 and 7 W AP gave the highest yield and net return.

References:

BACUSMO, J. 1978. Response of cassava (Golden Yellow variety) to different timing and duration of weed control. Unpublished Undergraduate Thesis, ViSCA, Baybay, Leyte. 71 p.
CATAMBAY, A. 1938. Costs of producing cassava in the College of Agriculture at Los Baños. Phil. Agric. 27:584-589.
DOLL, J., PINSTRUP ANDERSEN, P. and DIAZ, R. 1977. An agronomic survey of the weeds and weeding practices in cassava in Colombia. Weed Res. 17:153-160.
JANICK, J. 1972. Horticultural Science. 2^nd ed. W.H. Freeman and Co., San Francisco. 586 р.
LAL, R. 1980. Effects of soil moisture and bulk density on growth and development of two cassava cultivars. In Proc. First Triennial Root Crops Symp. ISTRC-Africa Branch, 8-12 September, 1980. E.R. Terry, Κ.Α. Oduro and F. Caveness (eds.) Ibadan, Nigeria. pp 104-110.
VILLANUEVA, C.D., LAGUNA, R.S., ALKUINO, J.M. JR., and MESORADO, N.B. Agro-economic studies of root crops in the Philippines. Terminal Report, ViSCA, Baybay, Leyte.