相关实验视频

Updated: Jul 4, 2025

A Protocol for Collecting and Constructing Soil Core Lysimeters

A Protocol for Collecting and Constructing Soil Core Lysimeters

Published on: June 6, 2016

优化和的应用,以改善土壤有机碳和花场的花花产量

Kongqin Wei¹, Junwei Zhao¹, Yanliang Sun¹

¹College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China.

Frontiers in plant science

|February 5, 2024

概括

和肥可以显著提高土壤有机碳 (SOC),活性碳分量和草的花草产量. 120公斤和100公斤的最佳应用率提高了土壤的肥力和碳捕获.

科学领域:

土壤科学土壤科学
农业学是一种农业学.
环境科学环境科学

背景情况:

土壤有机碳 (SOC) 对土壤肥沃性和陆地碳封存至关重要.
施加肥料是提高SOC和作物产量的关键农业实践.
和对SOC,活性有机碳分数和产量的特定影响需要进一步澄清.

研究的目的:

为了研究和对SOC,活性有机碳分数和田的干草产量的相互作用作用.
确定最佳的和应用率,以提高土壤特性和作物生产率.

主要方法:

采用双因素随机组设计,使用两个含量 (0和120公斤·ha-1) 和四个含量 (0,50,100和150公斤·ha-1).
测量包括SOC,容易氧化有机碳 (EOC),溶解有机碳 (DOC),有机颗粒碳 (POC),微生物生物质碳 (MBC) 和干草产量.
分析了碳分量的垂直分布和灵敏度指数,以及结构方程建模.

主要成果:

和处理显著增加了SOC,EOC,DOC,POC,MBC和干草产量,在N₁P₂或N₁P₃处理下观察到的最大益处.
施加肥料提高了顶部0-40厘米的土壤肥力,并在40-60厘米的土壤层中提高了碳捕获潜力.
结构方程建模表明,和通过改变活性有机碳分数,主要是POC和MBC,间接影响SOC.

结论:

田的最佳肥料应用模式是120公斤-1和100公斤-1.
这些应用率有效地增加了SOC含量,土壤碳池潜力和草干草产量.
和的施肥增强了土壤的肥力和的农业生态系统中的碳捕获潜力.

关键词:

阿尔法萨法 (Alfalfa) 是一种植物.收成收成收成收成收成化肥化肥是一种化肥.化肥是一种化肥.土壤有机碳土壤有机碳土壤活性有机碳土壤活性有机碳

更多相关视频

Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis

Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis

Published on: May 10, 2020

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Published on: March 21, 2016

相关概念视频

Key Elements for Plant Nutrition

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...

Overview of Nitrogen Metabolism

Overview of Nitrogen Metabolism

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...

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.

The Nitrogen Cycle

The Nitrogen Cycle

Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...