Nitrogen contribution by slow-release fertilizers to rubber Hevea brasiliensis seedlings

Tong V.T., . and Sharifuddin H.A.H., . and Zaharah Abdul Rahman, . and Yusof M. N., . and Mahmud A. W., . (1998) Nitrogen contribution by slow-release fertilizers to rubber Hevea brasiliensis seedlings. [Proceedings Paper]

Application of fertilizers is one of the most effective methods to enhance growth of rubber seedlings in nursery. However application of chemical fertilizers has several disadvantages such as nutrient leaching fertilizer burn to the plants and intensive labour requirement for split applications. In recent years slow-release fertilizers have been introduced to solve these problems on many crops including rubber. This study was set up with the aim of measuring the effects of slow-release fertilizers on the growth of rubber seedlings and to quantify the amounts of N taken up by rubber seedlings from these slow-release fertilizers. A laboratory incubation study and a glasshouse experiment were conducted. Five types of fertilizers were applied to Bungor soil and to rubber seedlings using the N dilution technique to quantify N taken up. The slow-release fertilizers tested were Agroblen Best Tab Kokei Nugget and Nurseryace while compound fertilizer used was nitrophoska yellow. Nitrophoska yellow showed the fastest rate of nutrient release while Nurseryace was the slowest. Ranking of nutrient release from incubation experiment is in the order of NY bigger than BT KN bigger than AB bigger than NA. After 180 days of Hevea plant growth in the glasshouse Best Tab gave the highest growth response N uptake from fertilizer total N P K Ca and Mg uptake and fertilizer use efficiency. Nitrophospka yellow showed the lowest fertilizer N yield fertilizer use efficiency and total nutrient uptake.

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Abstract

Application of fertilizers is one of the most effective methods to enhance growth of rubber seedlings in nursery. However application of chemical fertilizers has several disadvantages such as nutrient leaching fertilizer burn to the plants and intensive labour requirement for split applications. In recent years slow-release fertilizers have been introduced to solve these problems on many crops including rubber. This study was set up with the aim of measuring the effects of slow-release fertilizers on the growth of rubber seedlings and to quantify the amounts of N taken up by rubber seedlings from these slow-release fertilizers. A laboratory incubation study and a glasshouse experiment were conducted. Five types of fertilizers were applied to Bungor soil and to rubber seedlings using the N dilution technique to quantify N taken up. The slow-release fertilizers tested were Agroblen Best Tab Kokei Nugget and Nurseryace while compound fertilizer used was nitrophoska yellow. Nitrophoska yellow showed the fastest rate of nutrient release while Nurseryace was the slowest. Ranking of nutrient release from incubation experiment is in the order of NY bigger than BT KN bigger than AB bigger than NA. After 180 days of Hevea plant growth in the glasshouse Best Tab gave the highest growth response N uptake from fertilizer total N P K Ca and Mg uptake and fertilizer use efficiency. Nitrophospka yellow showed the lowest fertilizer N yield fertilizer use efficiency and total nutrient uptake.

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Item Type:	Proceedings Paper
AGROVOC Term:	RUBBER
AGROVOC Term:	SEEDLINGS
AGROVOC Term:	FERTILIZERS
AGROVOC Term:	NITROGEN
AGROVOC Term:	INCUBATORS
AGROVOC Term:	TRACER TECHNIQUES
AGROVOC Term:	NUTRIENT UPTAKE
AGROVOC Term:	MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/16266

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