Use of phosphate rock for arable food crop production in Thailand

Sangtong P., . and Wajanawat V., . and Cholitkul W., . (1992) Use of phosphate rock for arable food crop production in Thailand. [Proceedings Paper]

Phosphorus is one of the most important nutrients for crop production in Thailand. Of the phosphate fertilisers the cheaper phosphate rocks found in deposits in Thailand are considered to be important sources of P for crop production. There are three types of phosphate rocks in Thailand. they are the guano-derived marine phosphate and aluminium phosphate rocks which contain 14 to 35 percent total P2O5. Phosphate rocks have been used as P fertilisers for rice field crops and rice-soybean crop rotation systems. Application of phosphate rock increased the yield of rice grown in acid sulphate soil. Compared with concentrated superphosphate phosphate rock showed higher residual effect on corn grown in reddish brown lateritic soils. For soybean and mungbean grown on low pH soils the superiority of phosphate rock was also observed. For rice-soybean crop rotation systems phosphate rock increased the uptake of phosphorus. Soybean grown after rice markedly responded to phosphate rock applied during rice planting

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Abstract

Phosphorus is one of the most important nutrients for crop production in Thailand. Of the phosphate fertilisers the cheaper phosphate rocks found in deposits in Thailand are considered to be important sources of P for crop production. There are three types of phosphate rocks in Thailand. they are the guano-derived marine phosphate and aluminium phosphate rocks which contain 14 to 35 percent total P2O5. Phosphate rocks have been used as P fertilisers for rice field crops and rice-soybean crop rotation systems. Application of phosphate rock increased the yield of rice grown in acid sulphate soil. Compared with concentrated superphosphate phosphate rock showed higher residual effect on corn grown in reddish brown lateritic soils. For soybean and mungbean grown on low pH soils the superiority of phosphate rock was also observed. For rice-soybean crop rotation systems phosphate rock increased the uptake of phosphorus. Soybean grown after rice markedly responded to phosphate rock applied during rice planting

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Item Type:	Proceedings Paper
AGROVOC Term:	ORYZA
AGROVOC Term:	ZEA MAYS
AGROVOC Term:	GLYCINE MAX
AGROVOC Term:	APLICACION DE ABONOS
AGROVOC Term:	FOSFATO MINERAL
AGROVOC Term:	TAILANDIA
AGROVOC Term:	RENDIMIENTO DE CULTIVOS
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/15039

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