Journal article
Phosphorus requirements for containerized Pterocarpus indicus seedlings
Journal of Forestry Research, Vol.26(3), pp.657-662
2015
Abstract
Pterocarpus indicus Willd is a tropical woody legume that holds promise for plantation forestry. Two glasshouse experiments were undertaken on two soil types to determine the phosphorus (P) concentration ranges in the foliage of P-stressed and healthy plants, and to define critical P concentrations for the diagnosis of deficiency and toxicity. There was a narrow range in rates of P fertilizer, supplied as Ca(H2PO4)2·H20, between deficiency and toxicity compared to other tree species. The relationship between shoot yield and P concentration in the youngest fully expanded leaf enabled critical P concentrations for the diagnosis of deficiency (0.17 %) and toxicity (0.41 %) to be determined at 90 % maximum yield from linear regressions fitted to the data. The foliar P concentration ranges for deficiency and toxicity were similar to other nitrogen-fixing trees. The defined P concentration ranges and the critical P concentrations for the diagnosis of P deficiency and P toxicity should be useful for monitoring the P status of nursery stock and the health of young seedlings after out-planting.
Details
- Title
- Phosphorus requirements for containerized Pterocarpus indicus seedlings
- Authors/Creators
- E.H. Lok (Author/Creator) - Forest Research Institute MalaysiaB. Dell (Author/Creator) - Murdoch University
- Publication Details
- Journal of Forestry Research, Vol.26(3), pp.657-662
- Publisher
- Springer
- Identifiers
- 991005540587607891
- Copyright
- © 2015 Northeast Forestry University and Springer-Verlag Berlin Heidelberg
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.40 Forestry
- 3.40.55 Forest Dynamics
- Web Of Science research areas
- Forestry
- ESI research areas
- Plant & Animal Science