Investigations on the use of a Single Digest-Solution SDS in determining essential plant nutrients in plantation tree crops in Malaysia

Leong M.S.W., . and Ng S.K., . and Thong K.C., . and Ooi S.H., . and Leng K.Y., . (1996) Investigations on the use of a Single Digest-Solution SDS in determining essential plant nutrients in plantation tree crops in Malaysia. [Proceedings Paper]

Ten essential elements for plant growth and productivity are routinely monitored in nutrient surveys and studies of plantation tree crops. A number of methods for the analysis of these plant nutrients has been established and there is considerable variability in the preparation of the final digest-solutions used to determine N P K Ca Mg Mn Cu Fe Zn and B. It is therefore very obvious that a single standard digest-solution suitable for a precise yet rapid assay of most or all of the essential nutrients holds significant advantages. A preliminary investigation on using the digest-solution in the analysis of B Method II as the standard Single-Digest-Solution SDS for the evaluation of the above elements except N in oil palm and cocoa leaf tissues was iniated. The SDS Methods II test results were then compared with and calibrated against the corresponding data obtained in the Control standard Method I. The results are as follows a SDS K r0.99 Mg r0.98 and Mnr0.97 showed highly satisfactory calibration and good reproducibility b SDS P r0.91 Ca r0.91 and Cu r0.78 were only moderately to satisfactorily calibrated c SDS Zn r0.45 reproducibility was poor. Preliminary findings todate seem to indicate that the Single-Digest-Solution SDS of Method II has certain promise and applications in nutrient surveys preferably for the oil palm.

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Abstract

Ten essential elements for plant growth and productivity are routinely monitored in nutrient surveys and studies of plantation tree crops. A number of methods for the analysis of these plant nutrients has been established and there is considerable variability in the preparation of the final digest-solutions used to determine N P K Ca Mg Mn Cu Fe Zn and B. It is therefore very obvious that a single standard digest-solution suitable for a precise yet rapid assay of most or all of the essential nutrients holds significant advantages. A preliminary investigation on using the digest-solution in the analysis of B Method II as the standard Single-Digest-Solution SDS for the evaluation of the above elements except N in oil palm and cocoa leaf tissues was iniated. The SDS Methods II test results were then compared with and calibrated against the corresponding data obtained in the Control standard Method I. The results are as follows a SDS K r0.99 Mg r0.98 and Mnr0.97 showed highly satisfactory calibration and good reproducibility b SDS P r0.91 Ca r0.91 and Cu r0.78 were only moderately to satisfactorily calibrated c SDS Zn r0.45 reproducibility was poor. Preliminary findings todate seem to indicate that the Single-Digest-Solution SDS of Method II has certain promise and applications in nutrient surveys preferably for the oil palm.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal S590.2 S683 1995 Call Number
AGROVOC Term:	ELAEIS GUINEENSIS
AGROVOC Term:	LIQUID FERTILIZERS
AGROVOC Term:	THEOBROMA CACAO
AGROVOC Term:	OIL PALMS
AGROVOC Term:	PLANT NUTRITION
AGROVOC Term:	FERTILIZER APPLICATION
AGROVOC Term:	SOIL FERTILITY
AGROVOC Term:	PLANT SOIL RELATIONS
AGROVOC Term:	NUTRIENT UPTAKE
AGROVOC Term:	GROWTH
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/16320

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