Interseeded legumes with loblolly pine. II. Effect of phosphorus and legume variety on the growth of pine seedlings

A field study was initiated to quantify growth attributes of loblolly pine (Pinus taeda L.) when intercropped with warm-season annual legumes. In addition to main treatments, subplots of phosphorus (P) and a cool-season annual legume were also evaluated as factors contributing to growth of pine tree...

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Bibliographic Details
Published in:Journal of plant nutrition 1997-12, Vol.20 (12), p.1765-1772
Main Authors: Redmon, L.A, Rouquette, F.M. Jr, Goad, C.L, Smith, G.R, Florence, M.J, Stuth, J.W
Format: Article
Language:English
Subjects:
ABONOS FOSFATADOS
Agronomy. Soil science and plant productions
ALTURA
ALYSICARPUS VAGINALIS
Biological and medical sciences
CASSIA
COMPANION CROPS
CRECIMIENTO
CROISSANCE
Cropping systems. Cultivation. Soil tillage
CULTIVARS
CULTIVO INTERCALADO
CULTIVOS ASOCIADOS
CULTURE INTERCALAIRE
DIAMETER
DIAMETRE
DIAMETRO
ENGRAIS PHOSPHATE
FOSFORO
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Generalities. Cropping systems and patterns
GROWTH
GROWTH RATE
HAUTEUR
HEIGHT
INDICE DE CRECIMIENTO
INTERCROPPING
PHOSPHATE FERTILIZERS
PHOSPHORE
PHOSPHORUS
PINUS TAEDA
PLANTE DE CULTURE ASSOCIEE
PLANTULAS
PLANTULE
SEEDLINGS
TAUX DE CROISSANCE
TRIFOLIUM INCARNATUM
VARIEDADES
VARIETE
VARIETIES
VIGNA UNGUICULATA
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Summary:A field study was initiated to quantify growth attributes of loblolly pine (Pinus taeda L.) when intercropped with warm-season annual legumes. In addition to main treatments, subplots of phosphorus (P) and a cool-season annual legume were also evaluated as factors contributing to growth of pine trees. After 3 years, pine seedlings grown with 'Iron and Clay' cowpea [Vigna unguiculata (L.) Walp.] had grown to a height of 315 cm and had a diameter of 63 mm which was a substantial increase when compared to plants receiving other treatments. Phosphorus application had no effect (P.10) on pine growth parameters. The addition of 'Tibbee' crimson clover (Trifolium incarnatum L.) affected height (P.10) of pine trees grown with 'Comanche' partridge pea (Cassia fasciculata Michx), and pine trees grown alone (control). Regression analyses indicated no correlation between rate of growth in height of pine trees and warm-season legumes over a three-year period. Growth rate in diameter during this period, however, was greatest for pine trees growing with cowpeas. Pine seedlings grown as a control or with alyceclover had similar diameter growth rate, but then grew slower than pines with cowpeas, and faster than pines grown with partridge peas
ISSN:0190-4167
1532-4087
DOI:10.1080/01904169709365373