1、Potassium resources management systems in Chinese agriculture: Yield

Inexpensive and renewable straw-K recycling is crucial for enhancing soil K fertility and carbon (C) sequestration. Here, national management networks for inorganic- and straw-K were systematically integrated to identify yield gaps and C mitigation potential in Chinese typical crop rotation systems.

2、RCR最新文章

我国是世界上最大的化工钾肥消费国（占全球钾消费量的21%），进口的钾肥则高达50%，为了应对对钾日益增长的需求，从而确保国家钾资源和粮食安全，需要开发一种高效的钾替代技术。 在农业常用的有机材料中， 生物秸秆 提供了一种低成本、可再生的有机钾资源。 秸秆循环利用的数量和质量影响 土壤钾肥力 和土壤固碳。 系统地评估无机钾和秸秆钾的产量差距以及国家土壤钾肥力的时空变化，是发展我国粮食生产中可持续钾管理的必要条件。 而且与无机和秸秆钾管理系统相关的几个环境问题仍有待解决： (1)中国粮食生产中各种钾管理系统目前的 碳排放模式 是什么？ (2)通过优化无机和有机资源的年投入率以及作物秸秆季节分布，同时提高土壤钾肥、土壤碳固存和 …

3、Facts about Sustainable Potassium Management

Mining potassium can generate millions of tonnes of refuse, which includes sodium chloride salts that can leach and contaminate soils and fresh water, impacting biodiversity. It also results in the emission of methane, carbon dioxide, and nitrous oxides, which are all potent greenhouse gases.

4、中国科学院大学现代农业科学学院

针对以上科学问题，南京土壤研究所研究员王火焰团队构建了我国有机无机钾资源作物与土壤数据库，结合秸秆循环经验模型与 生命周期评价，探明了不同钾管理系统的环境代价与减排潜力。

5、Sustainable Fertilizers: Publication Landscape on Wastes as Nutrient

Given the need for fertilizers, their cost in nonrenewable resources and energy, and the consequences of the greenhouse gas emissions required to make them, people have begun to explore ways to make fertilizer manufacturing and use more sustainable.

Recycling potassium from cow manure compost can replace

The prevalence of K deficiency and negative K balance in rice production increases the demand for K fertilizer. However, the primary source of K fertilizer, potash rock, is limited. Recycling K from cow manure compost (CMC) is a sustainable solution.

Nutrient Recycling and Circular Economy

Learn how Phosphogypsum (a byproduct of phosphate fertilizer) can be transformed into valuable resources for agriculture, construction, forestry and more. This video shows how the industry is turning waste into value across multiple sectors.

Frontiers

Agricultural, animal, and fisheries wastes—such as crop residues, manure, fish processing by-products, and other organic materials—offer underutilized yet abundant sources of P and K. Recycling these wastes into fertilizers reduces dependency on mined resources and minimizes environmental impacts.

Recycling potassium from cow manure compost can replace potassium

One solution to this situation is to replace K fertilizer by recycling K from organic materials generated from agricultural systems. Livestock manure and crop residuals are the two most common types of organic matter generated by agricultural systems.

Recycling potassium from cow manure compost can replace potassium

Recycling K from cow manure compost (CMC) is a sustainable solution. Nevertheless, the effects of substituting K fertilizer with CMC on rice yield, soil K fertility, and partial K balance (PKB) are not well understood.

The recycling of potassium fertilizer resources is a critical component of agricultural production. It not only aids in environmental protection, resource conservation, and improved agricultural efficiency but also plays a vital role in sustainable development. Below is a detailed explanation of the recycling of potassium fertilizer resources:

1. Definition and Classification of Potassium Fertilizer Resources

• Definition: Potassium fertilizer refers to materials containing potassium elements, which provide essential nutrients for plant growth and development. It is indispensable in agriculture, significantly enhancing crop yields and quality.
• Classification: Potassium fertilizers are categorized by their sources and forms. Common types include potassium sulfate, potassium chloride, and potassium nitrate. Among these, potassium sulfate and potassium chloride are widely used, while potassium nitrate represents a newer form. These fertilizers can be produced through various methods to meet agricultural demands.

2. Necessity of Recycling Potassium Fertilizer Resources

• Environmental Protection: Rising global populations and industrialization have increased land exploitation, leading to soil degradation and water pollution. Recycling potassium resources reduces reliance on new land, minimizes pollution, and supports sustainable development.
• Resource Conservation: Potassium reserves are finite. Excessive extraction risks depletion. Recycling extends their lifespan, reduces waste, and ensures long-term availability.
• Economic Benefits: Recycling lowers costs by reducing the need for new fertilizers. Additionally, by-products from recycling processes (e.g., potassium extracted from wastewater) can generate additional income.

3. Methods for Recycling Potassium Fertilizer Resources

• Agricultural Waste Treatment: Crop residues, livestock manure, and other wastes contain significant potassium. Composting these materials converts them into organic fertilizers for reuse in fields.
• Industrial By-Product Recovery: Industrial processes often produce waste slag or water containing potassium. Treating these materials allows potassium extraction for agricultural or fertilizer production.
• Chemical Recovery Technologies: Chemical methods separate potassium from waste through reactions, transforming it into usable forms. These techniques offer high recovery rates and economic viability.
• Biological Recovery Technologies: Microorganisms can convert potassium in waste into usable forms. This approach is cost-effective and eco-friendly but requires optimal microbial strains and conditions.

4. Challenges and Solutions for Recycling Potassium Resources

• Technical Challenges: Low separation efficiency and high costs hinder recycling. Addressing this requires advancing technologies, increasing research investment, and fostering talent in the field.
• Policy Support: Governments should incentivize recycling through tax breaks, subsidies, and policies that lower risks for businesses.
• Public Awareness: Educating communities about the importance of recycling potassium resources—through workshops, exhibitions, and media—can boost participation and adoption.

5. Future Trends in Potassium Fertilizer Recycling

• Technological Innovation: Future efforts will focus on developing efficient, eco-friendly technologies for potassium recovery, such as green materials and low-energy processes.
• Industrial Integration: Recycling will increasingly align with sectors like renewable energy and新材料 (new materials), driving collaborative growth.
• Global Collaboration: International cooperation is essential to share technologies, address resource shortages, and tackle environmental challenges collectively.

6. Case Studies in Potassium Fertilizer Recycling

• Case 1: A region implemented a project collecting potassium from agricultural waste to produce organic fertilizers. This reduced reliance on new fertilizers, lowered costs, and improved soil health.
• Case 2: A chemical company used advanced recovery tech to extract potassium from industrial waste, creating new fertilizers while cutting pollution and waste.
• Case 3: A bio-recovery platform leveraged specific microbes to convert waste potassium into usable forms, providing farmers with低成本 (low-cost) fertilizer while solving waste issues.

recycling potassium fertilizer resources is crucial for sustainable agriculture. By combining technological innovation, policy support, and public engagement, we can overcome challenges and advance greener, more efficient practices. Embracing these strategies ensures the responsible use of finite resources while safeguarding food security for future generations.