Cultural Management Studies On Upland Taro: Effects Of Cultivation Systems On Growth And Yield Of Taro And Incidence Of Associated Weeds

Jose  R. Pardales,; Federico  G. Villamayor,

Cultural Management Studies On Upland Taro: Effects Of Cultivation Systems On Growth And Yield Of Taro And Incidence Of Associated Weeds

Jose R. Pardales | Federico G. Villamayor

Abstract:

Two croppings were conducted to determine the effects of 2 levels of land preparation and different post planting cultivation systems on the performance of upland taro and weed incidence. Plowing and harrowing once or twice with a carabao-drawn plow resulted in the same corm yield. The vegetative growth, biological yield of main plants, weight of rhizomes, number of rhizomes/m2 and harvest index were also not affected by levels of land preparation. The different postplanting cultivation systems likewise did not significantly affect the above parameters including main corm yield. This effect was attributed largely to the adequate weed control provided by the cultivation systems. Off-barring with carabao-drawn plow at 2 weeks after planting (WAP) + handweeding at 3 WAP + hilling-up at 5 WAP consistently gave high return of investment and required least cost in producing 1 kg of main corms. Handweeding was the most expensive operation. Apparently, one plowing and harrowing is sufficient for upland taro as long as postplanting cultivation is employed with adequate weed control measures.

References:

BACUSMO, J.L. 1978. Response of cassava (Golden Yellow variety) to different timing and duration of weed control. Undergraduate Thesis. ViSCA.
CARTEE, R.L. and HANKS, R.J. 1974. Effect of ridging and early season cultivation on bean yield. Agron. J. 66: 632-635.
DONAHUE, R.L. 1961. Our soils and their management. Interstate Printers and Pub-lishers, Inc. Illinois. 563 pp.
Donahue, R.L., MILLER, k.W. and SHICKLUNA, J.C. 1977. An introduction to soil and plant growth. 4th ed. Prentice-Hall Inc. New Jersey. 626 pp. 4
ENYI, B.A.C. 1973. Growth, development and yield of some tropical root crops. Proc. Third Symp. Int. Soc. Trop. Root Crops, Ibadan, Nigeria. p. 87-103.
FERGUSON, T.U. and GUMBS, F.A. 1976. Effect of soil compaction on leaf nuinber and area and tuber yield of white Lisbon yam. Proc. Fourth Symp. Int. Soc. Trop. Root Crops, Cali, Columbia. pp. 89-93.
LAL, R. 1980. Effects of soil moisture and bulk density on growth and development of two cassava cultivars. Proc. First Triennial Root Crops Symp. of Int. Soc. Trop. Root Crops, African Branch, Ibadan, Nigeria, pp. 104-110.
MARISCAL, A.M. 1978. Response of sweet potato (BNAS-51 variety) to different timing and duration of weed control. Undergraduate Thesis. ViSCA.
ONWUEME, I.C. 1978. The typical root crops. John Wiley and Sons, New York. 234 pp.
PEARSON, L.C. 1967. Principles of agronomy. Rhine-Hold Pub. Corp. New York. 434 pp.
PLUCKNETT, D.L. and DE LA PEÑA, R.S. 1971. Taro production in Hawaii. World Crops 23 (5): 244-249.
RUSSELL, W.J., FEHR, W.R. and MITCHELL, R.L. 1971. Effect of row cultivation on growth and yield of soybeans. Agron. J. 63: 772-774.
SAJJAPONGSE, A. and ROAN, Y.C. 1982. Physical factors affecting root yield of sweet potato. (Ipomoea batatas (L) Lam). Proc. Int. Symp. on Sweet Potato. AVRDC, Taiwan. pp. 203-208.
TALATALA, R.L., BALIAD, M.E. and PARDALES, J.R., JR. 1983. Critical period of weed control on upland taro. Proc. 14th Ann. Conf. PCCP. Manila. May 5-7, 1983.
THORNE, M.D. 1979. Physical properties of soils. In Soils, water and crop production, D.W. Thorne and M.D. Thorne, eds. AVI Pub. Co. Inc. Connecticut. 353 pp.
TREANOR, L.L. and ANDREWS, H. 1965. Some effects of frequency of cultivation with and without herbicides on corn, cotton and soybean. Proc. Southern Weed Conf. 18:49-54.
TROUSE, A.C., JR. and HUMBERT, R.P. 1961. Some effects of soil compaction on the development of sugarcane roots. Soil Sci. 91: 208-211.
VILLAMAYOR, F.G. and REOMA, V.L. 1983. Effect of land preparation and post-planting tillage on weed incidence and yield of cassava. Proc. 14th Ann. Conf. CSSP. IRRI. May 2-4, 1983.
VILLANUEVA, M.R., PARDALES, J.R., JR. and COTEJO, F.C., JR. 1981. Collec-tion, evaluation and selection of native and Hawaiian varieties of gabi (Colocasia esculenta (L) Schott) and their production under improved cultural management. PCARR Proj. 335 Terminal Report. 163 pp.
ZIMDAHL, R.L. 1980. Weed-crop competition: A review. IPPC. Oregon State Univ., Oregon. 198 pp.