Abstract
SUMMARY A field experiment was conducted on skeletally degraded forest land in a semi-arid region of southern India to study the effect of varying levels of nitrogen and phosphorus fertilizers and water harvesting on the early growth and establishment of Eucalyptus tereticornis. The application of either phosphorus (as phosphate) or water harvesting increased plant survival rate, tree height, above-ground biomass and root biomass. Compared with the control, the combined application of phosphorus (10 kg P2O5 ha-1) and water harvesting increased tree height by 60% to 205 cm, above-ground biomass by 367% to 14.75 quintals (100 kg) ha-1, and root biomass by 565% to 4.39 quintals ha-1. Survival and growth of eucalyptus was adversely affected by nitrogen application alone (preplanting) in such a dry zone where for the greater part of the year the soil moisture content remained below 3.5 per cent in the 75 cm profile. RÉSUMÉ L'on a fait une expérience sur un terrain extrêment dégradé dans une région semiaride du Sud de l'Inde afin d'étudier l'effet d'une variation des niveaux d'engrais d'azote et de phosphore et de la conservation de l'eau sur la croissance précoce et l'établissement d'Eucalyptus tereticornis. L'application du phosphore (sous forme de phosphate) ou la conservation de l'eau a augmenté le taux de survie des plantes, la hauteur des arbres, la biomasse au-dessus du sol et la biomasse des racines. Par comparaison avec les témoins, la combinaison de l'application de phosphore (10 kg P2O5 ha-1) et de la conservation de l'eau a augmenté la hauteur des arbres de 60%, jusqu' à 205 cm, la biomasse au-dessus du sol de 367%, jusqu'à 14,75 quintaux/ha-1, et la biomasse des racines de 565%, jusqu'à quintaux/ha-1. L'application de l'azote seul (avant le plantage) a eu un effet nuisible sur le taux de survie et la croissance de l'eucalyptus dans cette région si aride où pour la plupart de l'année la teneur en humidité du sol reste en-dessous de 3,5% dans le profil 75 cm. RESUMEN En un terreno forestal degradado a lo más mínimo en una región del sur de la India hemos dirigido un experimento sobre el terreno para estudiar el efecto de niveles variantes de abonos de nitrógeno y fósforo y recolección de agua en el crecimiento inicial y establecimiento de Eucalyptus tereticornis. La aplicación de fósforo (fosfato) o recolección de agua aumentó el índice de sobrevivencia de la planta, la altura del árbol, las biomasas sobre el terreno y las biomasas de raices. Comparado con el control, la aplicación combinada de fósforo (10 Kg P2O5 por Hectárea-1) y la recolección de agua aumentó la altura del árbol en un 60% a 205 cm, las biomasas sobre el terreno aumentaron en un 367% a 14.75 quintales (100 kg) por Hectárea-1, las biomasas de raices aumentaron en un 565% a 4.39 quintales por Hectárea-1. La sobrevivencia y crecimiento del aucalipto fueron afectados negativamente por la aplicación de nitrógeno solo (anterior a plantar) en una zona tan seca donde durante la mayor parte del año el contenido de humedad del suelo permanecía bajo 3.5% en un perfil de 75 cm de profundidad.
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Claims 6
Claim · model-written summary
Phosphorus application increased eucalyptus survival, height, and above-ground and root biomass.
- Taxon
- EUCALYPTUS
.jpg?width=60)
Eucalyptust0 - Treatment
- phosphorus (as phosphate)e0
- Outcome
- plant survival rate, tree height, above-ground biomass and root biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The application of either phosphorus (as phosphate) or water harvesting increased plant survival rate, tree height, above-ground biomass and root biomass.”
t0“EUCALYPTUS”
Claim · model-written summary
Water harvesting increased eucalyptus survival, height, and above-ground and root biomass.
- Taxon
- EUCALYPTUSEucalyptust0
- Treatment
- water harvestinge0
- Outcome
- plant survival rate, tree height, above-ground biomass and root biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of either phosphorus (as phosphate) or water harvesting increased plant survival rate, tree height, above-ground biomass and root biomass.”
t0“EUCALYPTUS”
Claim · model-written summary
Combined phosphorus and water harvesting increased tree height by 60% to 205 cm versus control.
- Taxon
- EUCALYPTUSEucalyptust0
- Treatment
- combined application of phosphorus (10 kg P2O5 ha-1) and water harvestinge0
- Outcome
- tree heighte0
- Direction
- increasede0
- Value
- 60% to 205 cme0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control, the combined application of phosphorus (10 kg P2O5 ha-1) and water harvesting increased tree height by 60% to 205 cm, above-ground biomass by 367% to 14.75 quintals (100 kg) ha-1, and root biomass by 565% to 4.39 quintals ha-1.”
t0“EUCALYPTUS”
Claim · model-written summary
Combined phosphorus and water harvesting increased above-ground biomass by 367% to 14.75 quintals (100 kg) ha-1 versus control.
- Taxon
- EUCALYPTUSEucalyptust0
- Treatment
- combined application of phosphorus (10 kg P2O5 ha-1) and water harvestinge0
- Outcome
- above-ground biomasse0
- Direction
- increasede0
- Value
- 367% to 14.75 quintals (100 kg) ha-1e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control, the combined application of phosphorus (10 kg P2O5 ha-1) and water harvesting increased tree height by 60% to 205 cm, above-ground biomass by 367% to 14.75 quintals (100 kg) ha-1, and root biomass by 565% to 4.39 quintals ha-1.”
t0“EUCALYPTUS”
Claim · model-written summary
Combined phosphorus and water harvesting increased root biomass by 565% to 4.39 quintals ha-1 versus control.
- Taxon
- EUCALYPTUSEucalyptust0
- Treatment
- combined application of phosphorus (10 kg P2O5 ha-1) and water harvestinge0
- Outcome
- root biomasse0
- Direction
- increasede0
- Value
- 565% to 4.39 quintals ha-1e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control, the combined application of phosphorus (10 kg P2O5 ha-1) and water harvesting increased tree height by 60% to 205 cm, above-ground biomass by 367% to 14.75 quintals (100 kg) ha-1, and root biomass by 565% to 4.39 quintals ha-1.”
t0“EUCALYPTUS”
Claim · model-written summary
Preplant nitrogen alone adversely affected eucalyptus survival and growth in the dry zone.
- Taxon
- eucalyptusEucalyptuse0
- Treatment
- nitrogen application alone (preplanting)e0
- Outcome
- Survival and growth of eucalyptuse0
- Direction
- adversely affectede0
- Qualifier
- soil moisture content remained below 3.5 per cent in the 75 cm profilee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Survival and growth of eucalyptus was adversely affected by nitrogen application alone (preplanting) in such a dry zone where for the greater part of the year the soil moisture content remained below 3.5 per cent in the 75 cm profile.”
The same questions in other papers
nitrogen · growth · EucalyptusPositive and negative results
3 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →phosphorus · growth · EucalyptusResults agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.