Nursery Fertilisation Affects Morphological Quality Attributes of Pot-Grown Engkabang jantong (Shorea macrophylla de Vr.) Seedlings

Latifah Omar, . and Mugunthan Perumal, . (2023) Nursery Fertilisation Affects Morphological Quality Attributes of Pot-Grown Engkabang jantong (Shorea macrophylla de Vr.) Seedlings. [Proceedings Paper]

One of the key elements of a successful forest restoration programme is a better understanding and application of nursery cultural regimes to increase seedling quality with high survival capability and optimal development potential. Thus, a nursery experiment was investigated to examine the effects of controlled-instant release fertiliser (CIRF) on the morphological quality attributes of Engkabang jantong (Shorea macrophylla de Vr.) seedlings. Following standard forest nursery procedures, the pots were filled with a 1:1 mixture of topsoil and sand (v:v). Either a chemical fertiliser (CF, N: P: K = 10: 26: 10) or a blend of 360-day (80% elution of the ingredients at 25°C) controlled-instant release fertiliser (CIRF, N: P: K = 10: 26: 10) was applied at the rate of 5 g per pot. At the end of the nursery growing season, the findings revealed that the survival rate and morphological quality attributes, particularly for the shoot height, root collar diameter, relative growth rate of shoot height, and sturdiness quotient of S. macrophylla seedlings treated with CIRF were significantly higher than those treated with CF. Notwithstanding, both treatments produced sub-optimal quality seedlings that met the standard criteria for a balanced root-to-shoot ratio (R: S < 2). Morphological and physiological characteristics of seedlings must be integrated into the stock quality evaluation to provide a more accurate assessment of the fitness of seedlings to become established for field planting.

Full text available from: Official URL: https://www.researchgate.net/publication/376715871...

Abstract

One of the key elements of a successful forest restoration programme is a better understanding and application of nursery cultural regimes to increase seedling quality with high survival capability and optimal development potential. Thus, a nursery experiment was investigated to examine the effects of controlled-instant release fertiliser (CIRF) on the morphological quality attributes of Engkabang jantong (Shorea macrophylla de Vr.) seedlings. Following standard forest nursery procedures, the pots were filled with a 1:1 mixture of topsoil and sand (v:v). Either a chemical fertiliser (CF, N: P: K = 10: 26: 10) or a blend of 360-day (80% elution of the ingredients at 25°C) controlled-instant release fertiliser (CIRF, N: P: K = 10: 26: 10) was applied at the rate of 5 g per pot. At the end of the nursery growing season, the findings revealed that the survival rate and morphological quality attributes, particularly for the shoot height, root collar diameter, relative growth rate of shoot height, and sturdiness quotient of S. macrophylla seedlings treated with CIRF were significantly higher than those treated with CF. Notwithstanding, both treatments produced sub-optimal quality seedlings that met the standard criteria for a balanced root-to-shoot ratio (R: S < 2). Morphological and physiological characteristics of seedlings must be integrated into the stock quality evaluation to provide a more accurate assessment of the fitness of seedlings to become established for field planting.

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Item Type:	Proceedings Paper
AGROVOC Term:	plant nurseries
AGROVOC Term:	morphology
AGROVOC Term:	plant morphology
AGROVOC Term:	pot planting
AGROVOC Term:	seedling production
AGROVOC Term:	forest biodiversity
AGROVOC Term:	farm forestry > farm forestry Prefer using agroforestryagroforestry
AGROVOC Term:	biodiversity conservation
AGROVOC Term:	ecological agriculture > ecological agriculture Prefer using alternative agriculturealternative agriculture
AGROVOC Term:	good agricultural practices
Geographical Term:	Malaysia
Depositing User:	Ms. Siti Sunarti Waini Osman
Date Deposited:	11 Dec 2024 02:20
Last Modified:	11 Dec 2024 02:20
URI:	http://webagris.upm.edu.my/id/eprint/2985

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