Kualitas Air dan Sumbangan Hara dari Air Irigasi Sidorejo

Jaka Suyono, Sutopo Sutopo, Herry Widijanto

Abstract

Irrigation water contributes several kind of nutrients to lowland rice and sometimes creates some problems. Research on irrigation water connected with fertilizers requirement and its effect on plant growth and crop yield was still limited. Water samples from Sidorejo irrigation in Central Java, at dry season in 2001, analyzed in laboratory its anion, cation, and water quality. The result showed that water quality from Sidorejo irrigation is suitable and did not give any unfavorable effect on the growth and yield of rice plant; which the values of SAR is very good, DHL and TDS were good-very good, Cl- is very good, percentage Na+ is moderate-good, SO4- is very good, and pH is normal. Irrigation water from Sidorejo irrigation were could supply 4,62 kg N/ha/season, 0,02 kg P/ha/season, 8,45 kg K/ha/season, 48,36 kg S/ha/season, 128,26 kg Ca/ha/season, and 34,89 kg Mg/ha/season respectively. The amount of nutrients supply have to be considered in the decision of fertilizer need

Keywords

irrigation water; water quality; nutrient content

Full Text:

PDF

References

Ayers, R.S., and D.W. Westcot. 1989. Water Quality for Agriculture. FAO. Irrigation and Drainage. Paper 29 Rev. 1. FAO-UN, Rome.

Booth, A. 1977. Irrigation in Indonesia Part I. Bulletin of Indonesia Economics Studies. New York.

Boyd, C. E. 1990. Water Quality in Ponds for Agriculture. Alabama Gricultural Experiment Station, Aubum University. Alabama.

Crescimanno, G., M. Iovino, adn G. Provenzano. 1995. Influence of Salinity and Sodicity on Soil Structural and Hydraulic Characteristics. Soil Sci. Soc. Am. J., Vol. 59: 1701-1708.

Damdam, A.M., M. Sediyarso, dan Jusuf Prawirasumantri. 1993. Kualitas Air Irigasi dalam Musim Hujan dari Sungai-sungai di Sulawesi Selatan. Prosiding Pertemuan Teknis Penelitian Tanah dan Agroklimat Bidang Kesuburan dan Produktivitas Tanah. Pusat Penelitian Tanah dan Agroklimat. Bogor.

Schofield, R.K. 1948. A Ratio Law Governing the Equilibrium of Cation in Soil Solution. In A Yers, R.S. and D.W. West Cot. 1976. Water for Agriculture, FAO. Rome.

Soepartini, M., Widati, S., Suryadi, M.E., dan Prihatin, T. 1996. Evaluasi Kualitas dan Sumbangan Hara dari Air Pengairan di Jawa. Pemberitaan Penelitian Tanah dan Pupuk. Pusat Penelitian Tanah dan Agroklimat. Bogor.

Stumm, W., and J.J. Morgan. 1970. Aquatic Chemistry. An Introduction Emphasizing Chemical Equilibria in Natural Water. Wiley-Interscience New York-London-Sydney-Toronto.

Sudjadi, M., Adiningsih, J.S., adn D.W. Gill. 1985. Potassium Availibility in Soils of Indonesia. P. 185-196. In. Potassium in the Agricultural System of The Humid Tropics. Proceedings of the 19th Colloquium of the International Potash Institute Held in Bangkok. Grafindo Bem. Switzerland.

Sudjadi, M., dan L.M. Widjik. 1972. Metode Analisa Air Irigasi. Publikasi No. 8/1972. Bagaian Kesuburan Tanah, Lembaga Penelitian Tanah. Bogor.

Takahashi, J., E. Shiratani, and I. Yoshinaga. 2000. Relationship between the Characteristics and Water Quality of Irrigation Ponds in Japan. JARQ 34(3): 175-182.

US, Salinity Laboratory staff. 1954. In. Israelsen, OW., and V.E. Hansen. Irigation Principles and Practices. Jihn Wiley and Sons. New York.

Wienhold, B.J., and T.P. Trooien. 1995. Salinity and Sodicity Changes under Irrigated Alfalfa in the Northen Great Plains. Soil. Sci. Soc. Am. J., Vol. 59: 1709-1714.

World Bank. 1993. Water Resources Management. A World Bank Policy Paper. IBRD/The World Bank. Washington, D.C.

DOI: https://doi.org/10.20961/carakatani.v22i2.20556

Refbacks

  • There are currently no refbacks.


Bookmark and Share