Comparative study of rubber effluent and an inorganic fertiliser as sources of plant nutrients for Hevea and their effects on soil properties

Mohd. Zin A. Karim, . and Abu Talib Bachik, . Comparative study of rubber effluent and an inorganic fertiliser as sources of plant nutrients for Hevea and their effects on soil properties. pp. 260-272. ISSN 0127-7065

Leachate collected from soils to which rubber effluent was applied contained consistent levels of ammonium nitrogen (NH4-N) whereas the amount of NH4-N in leachate from fertiliser-treated soils fluctuated at times being significantly higher than those from effluent-treated soils. Leachate from effluent-treated soils had higher levels of potassium (K) magnesium (Mg) and calcium (Ca) compared to those from fertiliser-treated soils. The frequency of effluent application affected only the level of NH4-N in the leachate and application at a lower frequency produced leachate with lower concentrations. Soils treated with rubber effluent had higher nutrient contents than fertiliser-treated soils but rubber seedlings grown on fertiliser-treated soils had higher leaf nitrogen contents than those grown on effluent-treated soils. There was no significant difference in latex yield produced by the effluent-treated seedlings and the fertiliser-treated seedlings.

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Abstract

Leachate collected from soils to which rubber effluent was applied contained consistent levels of ammonium nitrogen (NH4-N) whereas the amount of NH4-N in leachate from fertiliser-treated soils fluctuated at times being significantly higher than those from effluent-treated soils. Leachate from effluent-treated soils had higher levels of potassium (K) magnesium (Mg) and calcium (Ca) compared to those from fertiliser-treated soils. The frequency of effluent application affected only the level of NH4-N in the leachate and application at a lower frequency produced leachate with lower concentrations. Soils treated with rubber effluent had higher nutrient contents than fertiliser-treated soils but rubber seedlings grown on fertiliser-treated soils had higher leaf nitrogen contents than those grown on effluent-treated soils. There was no significant difference in latex yield produced by the effluent-treated seedlings and the fertiliser-treated seedlings.

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Item Type:	Article
AGROVOC Term:	Soil
AGROVOC Term:	Rubber crops
AGROVOC Term:	Inorganic fertilizers
AGROVOC Term:	Effluents
AGROVOC Term:	Leachates
AGROVOC Term:	Ammonium nitrogen
AGROVOC Term:	Potassium fertilizers
AGROVOC Term:	Magnesium fertilizers
AGROVOC Term:	Calcium fertilizers
AGROVOC Term:	Soil physicochemical properties
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	28 Apr 2025 05:13
URI:	http://webagris.upm.edu.my/id/eprint/23537

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