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Related Concept Videos

Key Elements for Plant Nutrition02:35

Key Elements for Plant Nutrition

Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the atmosphere, the...
Water and Mineral Acquisition02:34

Water and Mineral Acquisition

Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.

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Related Experiment Video

Updated: Jul 5, 2026

Infection of In Vivo and In Vitro Pines with the Pinewood Nematode Bursaphelenchus xylophilus and Isolation of Induced Volatiles
08:42

Infection of In Vivo and In Vitro Pines with the Pinewood Nematode Bursaphelenchus xylophilus and Isolation of Induced Volatiles

Published on: September 27, 2024

Nutrient use and uptake in Pinus taeda.

Timothy J Albaugh1, H Lee Allen, Thomas R Fox

  • 1Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695-8008, USA. tim_albaugh@ncsu.edu

Tree Physiology
|May 3, 2008
PubMed
Summary

Fertilizing loblolly pine (Pinus taeda L.) significantly increased nutrient content and uptake, with irrigation further enhancing fertilizer efficiency and volume production. Intensive forest management with fertilizers shows high ecosystem nitrogen retention, minimizing offsite movement.

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Processing the Loblolly Pine PtGen2 cDNA Microarray
07:01

Processing the Loblolly Pine PtGen2 cDNA Microarray

Published on: March 20, 2009

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Last Updated: Jul 5, 2026

Infection of In Vivo and In Vitro Pines with the Pinewood Nematode Bursaphelenchus xylophilus and Isolation of Induced Volatiles
08:42

Infection of In Vivo and In Vitro Pines with the Pinewood Nematode Bursaphelenchus xylophilus and Isolation of Induced Volatiles

Published on: September 27, 2024

Processing the Loblolly Pine PtGen2 cDNA Microarray
07:01

Processing the Loblolly Pine PtGen2 cDNA Microarray

Published on: March 20, 2009

Area of Science:

  • Forestry and soil science, focusing on nutrient cycling and resource management in pine ecosystems.

Background:

  • Loblolly pine (Pinus taeda L.) stands on nutrient-poor soils require understanding of nutrient dynamics for sustainable management.
  • Quantifying nutrient use, retranslocation, uptake, and fertilizer efficiency is crucial for optimizing forest productivity.

Purpose of the Study:

  • To investigate the effects of nutrient and water addition on nutrient content, uptake, and volume production in loblolly pine.
  • To determine fertilizer-uptake efficiencies and ecosystem nitrogen retention under intensive management.

Main Methods:

  • A 2x2 factorial experiment (nutrient and water) was conducted on an 8-year-old loblolly pine stand over 14 years.
  • Measurements included nutrient content (N, P, K, Ca, Mg), uptake, retranslocation, volume production, and fertilizer-uptake efficiency.
  • Ecosystem nitrogen retention was estimated by tracking applied nitrogen in various ecosystem components.

Main Results:

  • Fertilization doubled tissue N, P, K, and Mg content; irrigation had smaller effects on content but improved volume production per unit of nutrient uptake.
  • Fertilizer-uptake efficiencies increased with irrigation for all measured nutrients, with some exceeding 100% for Ca.
  • Ecosystem nitrogen retention was estimated at 79% by age 17, indicating effective nutrient capture.

Conclusions:

  • Combined nutrient and water management significantly enhances loblolly pine growth and nutrient use efficiency.
  • Intensive forest fertilization strategies can achieve high nutrient retention within the ecosystem, reducing environmental risks.
  • Understanding nutrient dynamics is key to optimizing productivity and sustainability in managed pine forests.