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Related Concept Videos

Key Elements for Plant Nutrition02:35

Key Elements for Plant Nutrition

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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...
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The Roles of Bacteria and Fungi in Plant Nutrition02:11

The Roles of Bacteria and Fungi in Plant Nutrition

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Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
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Overview of Nitrogen Metabolism01:20

Overview of Nitrogen Metabolism

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Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of  ammonia, ammonium ions, nitrate, nitrite, or  nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
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Overview of Metabolism01:40

Overview of Metabolism

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Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
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  1. Home
  3. Research Domains
  5. Agricultural, Veterinary And Food Sciences
  7. Agriculture, Land And Farm Management
  9. Agricultural Production Systems Simulation
  11. Modeling Nitrogen Fate And Water And Nitrogen Use Efficiencies Under Different Greenhouse Vegetable Production Systems Using The Whcns-veg Model.
  1. Home
  3. Research Domains
  5. Agricultural, Veterinary And Food Sciences
  7. Agriculture, Land And Farm Management
  9. Agricultural Production Systems Simulation
  11. Modeling Nitrogen Fate And Water And Nitrogen Use Efficiencies Under Different Greenhouse Vegetable Production Systems Using The Whcns-veg Model.

Related Experiment Video

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management
05:04

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management

Published on: July 14, 2023

389

Modeling Nitrogen Fate and Water and Nitrogen Use Efficiencies under Different Greenhouse Vegetable Production Systems Using the WHCNS-Veg Model.

Hongyuan Zhang1,2, William D Batchelor3, Kelin Hu2

  • 1School of Agriculture, Ludong University, Yantai 264025, China.

Plants (Basel, Switzerland)
|May 25, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

The organic greenhouse vegetable production system significantly boosts yield and nutrient use efficiency while reducing nitrogen losses. This system is recommended for farmers seeking sustainable and productive practices.

Keywords:
WHCNS-Veg modelgaseous N lossgreenhouse vegetable production systemnitrate leaching

More Related Videos

Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements
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Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements

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Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers
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Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers

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Related Experiment Videos

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management
05:04

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management

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389
Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements
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Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements

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Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers
11:50

Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers

Published on: August 3, 2014

41.3K

Area of Science:

  • Agricultural Science
  • Environmental Science
  • Agronomy

Background:

  • Greenhouse vegetable production systems (GVPS) require optimized water and nitrogen (N) management for sustainability.
  • Understanding the impact of different GVPS on yield, water use, and N fates is crucial for efficient agricultural practices.
  • North China's greenhouse vegetable fields face challenges in balancing productivity with environmental impact.

Purpose of the Study:

  • To quantitatively evaluate the effects of conventional (CON), integrated (INT), and organic (ORG) greenhouse vegetable production systems.
  • To assess impacts on vegetable yield, soil water consumption, and nitrogen fates.
  • To determine optimal water and fertilizer management practices for GVPS.

Main Methods:

  • Conducted field research from 2013 to 2015 in Quzhou County, North China.
water and nitrogen utilization efficiencies
  • Employed the WHCNS-Veg model to simulate vegetable growth, water dynamics, and N fates over four growing seasons.
  • Analyzed vegetable yield, nitrogen uptake, water use efficiency (WUE), nitrogen use efficiency (NUE), nitrate leaching, and gaseous N loss.

    • Main Results:

    • Nitrate leaching (11.5-59.4%) and gaseous N emissions (6.0-21.1%) were the predominant N losses in GVPS.
    • The organic (ORG) system showed superior performance: ORG > INT > CON for yield, N uptake, WUE, and NUE.
    • Compared to CON, ORG significantly increased yield (24.6%), N uptake (24.2%), WUE (26.1%), and NUE (89.7%), while reducing nitrate leaching (67.7%) and gaseous N loss (63.2%).

    Conclusions:

    • The organic production system offers substantial improvements in vegetable yield and nutrient use efficiency.
    • Organic systems significantly mitigate environmental nitrogen losses, including nitrate leaching and gaseous emissions.
    • The ORG system is recommended for local farmers to enhance sustainability and productivity in greenhouse vegetable cultivation.