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Loblolly Pine Mid-Rotation Phosphorus Fertilization with Poultry Litter Ash or Triple Superphosphate.
- Source :
-
Communications in Soil Science & Plant Analysis . 2024, Vol. 55 Issue 13, p2000-2008. 9p. - Publication Year :
- 2024
-
Abstract
- Loblolly pine (Pinus taeda L.) grown on infertile coastal plain soils typically shows a growth response to N and P applied at mid-rotation. The objectives of this study were to determine whether less soluble poultry litter ash (PLA) provides an adequate supply of P compared to triple superphosphate (TSP), and assess effects on P mineralization and runoff loss. Effects of 56 kg P ha−1 as either PLA or TSP, and no fertilization were compared using an 11-year-old stand of two loblolly pine genotypes on a loamy sand in a completely randomized design. Tree height, diameter and foliar nutrients, soil Mehlich 3 P and phosphatase activity (A and E horizons), and P in surface runoff were monitored. Through more than two years, P fertilization had no effect on tree growth. Similar foliar P with PLA or TSP, together with increasing foliar and soil P over time, suggested that PLA is an adequate source of P for loblolly pine. Neither fertilizer suppressed P mineralization as measured by phosphatase activity. The advantage of PLA compared to TSP is potentially much less runoff P loss. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POULTRY litter
*LOBLOLLY pine
*COASTAL plains
*TREE growth
*TREE height
*PHOSPHORUS
Subjects
Details
- Language :
- English
- ISSN :
- 00103624
- Volume :
- 55
- Issue :
- 13
- Database :
- Academic Search Index
- Journal :
- Communications in Soil Science & Plant Analysis
- Publication Type :
- Academic Journal
- Accession number :
- 177218727
- Full Text :
- https://doi.org/10.1080/00103624.2024.2336575