Abstract
Research in many countries indicates a negative K balance in intensive, irrigated rice systems but comparative studies across different environments are few. Using a uniform sampling methodology, we measured K uptake, K use efficiency, and K balance in six different fertilizer treatments of long-term fertility experiments with rice at 11 sites in five Asian countries. Depending on the absolute yield level, K uptake requirements of rice ranged from 17 to 30 kg K per ton of grain. For yields greater than 8 t ha-1, total K uptake exceeded 200 kg ha-1. The K balance at most experimental sites was negative, with an average net removal of 34–63 kg K season-1. There was significant depletion of soil K reserves at many sites. Based on these data, we estimated that the amount of K cycled annually from the soil into rice plants is 7–10 million t in irrigated rice systems of Asia. About 1 million t of this total amount is removed with the harvested grain. Present recommendations for K addition in most intensive irrigated rice domains are insufficient to replace K removal. However, response to K can only be expected on soils with deficient supply capacity and where other nutrients, particularly N and P, are not limiting. Efficient K management for rice must therefore be based on the K input/output balance, the achievable yield target, and the effective K-supplying power of the soil.
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References
Abedin MianMJ, BlumeHP, BhuiyaZH and EaqubM (1991) Water and nutrient dynamics of a paddy soil of Bangladesh. Z Pfl-Ern Bodenk 154: 93–99.
BajwaMI (1980) Soil clay mineralogies in relation to fertilizer management: Effect of soil clay mineral compositions on potassium fixation under conditions of wetland rice culture. Commun Soil Sci Plant Anal 11: (10): 1019–1027
BajwaMI (1994) Soil potassium status, potash fertilizer usage and recommendations in Pakistan. Potash Review No. 3/1994. Subject 1, 20th suite, Basel: International Potash Institute
CassmanKG and PingaliPL (1995) Intensification of irrigated rice systems: Learning from the past to meet future challenges. Geo-Journal 35: 299–305
DeDattaSK, BureshRJ, SamsonMI and WangKR (1988a) Nitrogen use efficiency and nitrogen-15 balances in broadcast-seeded flooded and transplanted rice. Soil Sci Soc Am J 52: 849–855
DeDattaSK, GomezKA and DescalsotaJP (1988b) Changes in yield response to major nutrients and in soil fertility under intensive rice cropping. Soil Sci 146: 350–358
DeDattaSK and MikkelsenDS (1985) Potassium nutrition of rice. In: MunsonRD, SumnerME and BishopWD (eds) Potassium in agriculture, pp 665–699. Madison, Wi: ASA, CSSA, SSSA
DobermannA, CassmanKG, Sta.CruzPC, AdvientoMA and PampolinoMF (1996) Fertilizer inputs, nutrient balance, and soil nutrient-supplying power in intensive, irrigated rice systems. II. Effective soil K-supplying capacity. Nutr Cycl. Agroecosyst 46: 11–21
GoswamiNN and BanerjeeNK (1978) Phosphorus, potassium and other macroelements. In: Soils and rice, pp 561–580. P.O. Box 933, 1099 Manila, Philippines: International Rice Research Institute
HandaBK (1988) Content of potassium in ground water in India. Fert News 33 (11): 15–27
HuangJN, LiJP and XieS (1990) A study of nutrient balance in different cropping systems on a lateritic red soil. J South China Agric Univ 13: 7–14
IRRI (1993) 1993–1995 IRRI rice almanac, P.O. Box 933, 1099 Manila, Philippines: International Rice Research Institute
JanssenBH, GuikingFCT, Van derEijkD, SmalingEMA, WolfJ and VanReulerH (1990) A system for Quantitative Evaluation of the Fertility of Tropical Soils (QUEFTS). Geoderma 46: 299–318
KawaguchiK and KyumaK (1977) Paddy soils in tropical Asia. Their material nature and fertility, Honolulu: The University Press of Hawaii
Maene LM (1995) Constraints and opportunities for fertilizer use in Asian countries, an introduction to the theme. In: Potassium in Asia. Proceedings of the 24th IPI Colloquium, Chiang Mai, Thailand, February 21–24, 1995 (in press)
MohantySK and MandalLN (1989) Transformation and budgeting of N, P and K in soils for rice cultivation. Oryza 26: 213–231
OberthuerT, DobermannA and NeueHU (1995) Spatial modeling of soil fertility — A case study in Nueva Ecija, Philippines. In: Proceedings of the International Rice Research Conference, 13–17 February, 1995, Los Banos, pp 689–705. Los Banos, Laguna, Philippines: International Rice Research Institute
PonnamperumaFN, CaytonMT and LantinRS (1981) Dilute hydrochloric acid as an extractant for available zinc, copper and boron in rice soils. Plant Soil 61: 297–310
PrasadBL (1993) Effect of continuous application of potassium on crop yields and potassium availability under different cropping sequences in calcareous soil. J Potassium Res 9: 48–54
SheldrickWF (1985) World potassium reserves. In: MunsonRD, BishopWD, HoltDA, MurphyLS, NelsonWL, SampleEC and SumnerME (eds) Potassium in agriculture, pp 3–28. Madison, WI: ASA, CSSA, SSSA
Sri AdiningsihJ, SantosoD and SudjadiM (1991) The status of N, P, K and S of lowland rice soils in Java. In: BlairG (ed) Sulfur fertilizer policy for lowland and upland rice cropping systems in Indonesia, pp 68–76. Melbourne: ACIAR
TeoYH, BeyroutyCA and GburEE (1995) Evaluation of a model to predict nutrient uptake by field- grown rice. Agron J 87: 7–12
TiwariKN (1985) Changes in potassium status of alluvial soils under intensive cropping. Fert News 30: (9): 17–24
UexkuellHRV (1985) Availability and management of potassium in wetland rice soils. In: Wetland soils: characterization, classification and utilization, pp 293–305. P.O. Box 933, 1099 Manila, Philippines: International Rice Research Institute
vanKeulenH (1986) Crop yield and nutrient requirements. In: VanKeulenH and WolfJ (eds) Modelling of agricultural production: weather, soils and crops, pp 155–181. Wageningen: Pudoc
vanReeuwijkLP (1992) Procedures for soil analysis, 3rd edn, Wageningen: ISRIC
YoshidaS, FornoDA, CockJH and GomezKA (1976) Laboratory manual for physiological studies of rice, 3rd edn, P.O. Box 933, Manila 1099, Philippines: International Rice Research Institute
YoshidaS (1981) Fundamentals of rice crop science, P.O. Box 933, 1099 Manila, Philippines: International Rice Research Institute
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Dobermann, A., Cruz, P.C.S. & Cassman, K.G. Fertilizer inputs, nutrient balance, and soil nutrient-supplying power in intensive, irrigated rice systems. I. Potassium uptake and K balance. Nutr Cycl Agroecosyst 46, 1–10 (1996). https://doi.org/10.1007/BF00210219
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DOI: https://doi.org/10.1007/BF00210219