1、Synthesis of liquid nitrogenous fertilizer via a nitrogen conversion

Here the authors develop an absorption‒electroreduction relay strategy capable of the distributed production of liquid N fertilizer from NOx or even air.

2、Toward Green Liquid Nitrogen Fertilizer Synthesis: Plasma

Abstract Liquid fertilizers, particularly when integrated with precision irrigation systems, offer a more efficient and sustainable alternative to traditional solid nitrogen fertilizers.

3、Liquid fertilizer production from organic waste by conventional and

This study aims to evaluate different technologies based on conventional and microwave extraction, using water and alkaline solutions as solvents, to recover carbon and nitrogen from organic waste, such as municipal waste compost, to obtain a liquid organo-mineral fertilizer.

Method For Manufacturing Organic Liquid Fertilizer

Systems and methods for manufacturing an organic liquid fertilizer product are shown. The contemplated systems and methods are configured to treat waste from a natural source in order to produce the organic liquid fertilizer. The liquid organic waste may be derived from an organic source.

Toward Green Liquid Nitrogen Fertilizer Synthesis: Plasma‐Driven

Liquid fertilizers, particularly when integrated with precision irrigation systems, offer a more efficient and sustainable alternative to traditional solid nitrogen fertilizers.

Nitrogen

Method: A thorough review of existing literature on nitrogen-enriched LOFs based on their chemical attributes and methodologies to increase the nitrogen content.

Synthesis of liquid nitrogenous fertilizer via a nitrogen conversion

Schematic diagram showing the conventional production of solid nitrogenous fertilizer and a blueprint of our relay strategy for the sustainable manufacture of liquid nitrogenous...

Liquid biofertilizers as a sustainable solution for agriculture

The production of liquid biofertilizers, types of liquid inoculants, and their effect on plant growth are covered in this review. Liquid biofertilizers can be made from wastes and by-products of several industries, making zero or near-zero discharge possible and thus gearing towards circular economy.

Distributed production of ready

A relay strategy — driven by sustainable energy — to produce and distribute liquid nitrogenous fertilizer has now been shown to provide effective fertilization.

The production of organic liquid nitrogen fertilizer involves a process integrating chemistry, biology, and agricultural technology. It primarily relies on nitrogen gas released from the decomposition of organic matter under specific conditions, which can be absorbed and utilized by plants. Below is a simplified method for producing organic liquid nitrogen fertilizer:

I. Material Preparation

1. Raw Material Selection

   • Organic Fertilizer: Choose reliable and high-quality organic fertilizers, such as chicken manure, cattle manure, or pig manure. These materials are rich in nitrogen, phosphorus, potassium, and trace elements, making them ideal for producing organic liquid nitrogen fertilizer.
   • Microbial Agents: Use microbial agents with strong bioactivity, such as rhizobia (root nodule bacteria) or nitrogen-fixing bacteria, which convert atmospheric nitrogen into plant-absorbable forms.
   • Water: Ensure clean water free of harmful substances to guarantee the safety and effectiveness of the fertilizer.

2. Container Preparation

   • Select suitable containers (e.g., plastic buckets, glass jars, or stainless steel barrels) that are chemically stable and non-reactive with the fertilizer.
   • The container must have adequate capacity to hold all materials and allow space for gas emissions during fermentation.

3. Auxiliary Equipment

   • Thermometer and pH Meter: Monitor temperature and pH changes during fermentation to maintain optimal conditions for microbial activity.
   • Stirrer: Use a mechanical stirrer or manual mixing tool to promote gas exchange and uniform nutrient distribution.
   • Sieve/Filter Cloth: For separating solid residues from the liquid fertilizer after fermentation.

II. Preparation Steps

1. Mixing Raw Materials

   • Combine organic fertilizer and microbial agents in appropriate proportions (e.g., add 5–10 kg of microbial agent per 100 kg of organic fertilizer).
   • Ensure thorough mixing for even distribution of components before proceeding to fermentation.

2. Adjusting pH

   • Use lime (calcium hydroxide) or sodium carbonate (soda ash) to adjust the pH of the mixture. Lime is suitable for acidic soils, while sodium carbonate works for neutral or alkaline soils.
   • Conduct small-scale tests to determine the optimal pH range (typically 6.5–7.5) before scaling up.

3. Sealed Fermentation

   • Transfer the pH-adjusted mixture into the container, press out air, and seal tightly.
   • Monitor temperature (ideally 25–30°C) and pH regularly. Maintain stable conditions to support microbial activity.

4. Continuous Monitoring and Adjustment

   • Closely track temperature and pH fluctuations. If temperatures rise excessively, increase ventilation or cool the environment.
   • Periodically test samples to ensure nitrogen content meets standards.

5. Maturation and Separation

   • Stop fermentation when microbial activity peaks and organic matter is fully decomposed.
   • Filter the liquid fertilizer to remove solid residues.
   • Concentrate and dry the filtered liquid to obtain the final organic liquid nitrogen fertilizer product.

III. Precautions

1. Safety First: Follow operational protocols strictly to ensure personal and equipment safety.
2. Environmental Impact: Fermentation may generate heat and gases. Implement proper ventilation to prevent fire or explosion risks.
3. Quality Control: Regularly inspect the fertilizer to ensure it meets national standards and crop requirements.
4. Storage and Transport: Store the fertilizer in a cool, dry place away from direct sunlight and high temperatures. During transport, protect against moisture and leaks to maintain quality.

this method outlines the basic steps for producing organic liquid nitrogen fertilizer. Due to its complexity and strict conditional requirements, it is recommended to operate under professional guidance to ensure product quality and efficacy.