1、Preparation, swelling behaviors and fertilizer
In this work, the multifunctional superabsorbent resin with biodegradable and slow release fertilizer properties was synthesized by inverse suspension polymerization.
2、Application of Super Absorbent Polymer in the Research of Water
Super absorbent polymer is a new type of functional polymer material that has been researched in recent decades. Due to its special structure and water-absorbing and water-retaining properties,...
3、The water
In this study, a new type of comprehensive slow-release fertilizer, nutrient water carrier (NC) fertilizer, was prepared by combining the synthesis technology of urea formaldehyde and modified chitosan.
Preparation of Hypromellose
The obtained results unequivocally validate the effectiveness of the synthesized superabsorbent resin and slow-release fertilizer in significantly enhancing plant growth.
Novel fabrication of biodegradable superabsorbent polymer from wheat
To address these issues, we developed a superabsorbent material composed of wheat stalk (WS) and polyacrylic acid (PAA)–polyacrylamide (PAM), fabricated via versatile polymerization techniques.
A Review on Sustainable Slow‐Release N, P, K Fertilizer Hydrogels for
Superabsorbent hydrogels can be used for slow-release of N-, P-, K-fertilizers into the soil, enhancing soil moisture and plant growth. These hydrogels thus help in improving crop productivity through sustained nutrient release, aligning with smart agriculture.
Application of Super Absorbent Polymer in the Research of Water
This article summarizes the literature, expounds the research status, existing problems, and future research directions and hot spots of super absorbent resins.
Superabsorbent polymers used for agricultural water retention
SAPs that made from synthetic polymers (also referred to as superabsorbent resin (SAR)), such as PAA, PAM and PVA, generally have superior water-absorption and water-retention properties than natural polymers.
A comprehensive assessment of superabsorbent resin produced using
Superabsorbent resin (SAR), as a polymer material with a large number of hydrophilic groups and network structure with a certain degree of crosslinking, has excellent water absorption and retention capacity with applications in different fields for decades.
New Environment
With the aim of improving fertilizer use efficiency and minimizing the negative impact on the environment, a new double-coated slow-release nitrogen and phosphorus fertilizer with water retention was prepared. Wheat straw was introduced into the formulations as the basic coating material.
In modern agricultural production, fertilizers, as indispensable nutritional sources for crop growth, directly influence crop development and final yields through their quality and application methods. With the growing demand for sustainable agriculture, traditional fertilizers are increasingly failing to meet the requirements of modern farming. Consequently, developing new, efficient, and eco-friendly fertilizers has become a critical direction in agricultural technology. Among these innovations, superabsorbent resin-modified fertilizers, as an emerging form of fertilization, are gradually gaining attention and adoption due to their unique performance advantages.
Superabsorbent resin, a high-water-absorption polymer material, can rapidly expand and retain moisture for extended periods upon contact with water. This property endows superabsorbent resin-modified fertilizers with significant advantages in water and nutrient retention. Compared to conventional fertilizers, these modified fertilizers more effectively reduce water evaporation losses and improve soil water utilization rates, making them particularly valuable in arid or semi-arid regions.
The primary advantage of superabsorbent resin-modified fertilizers lies in their exceptional water-retention capabilities. Due to their unique molecular structure, superabsorbent resins form a gel-like matrix after absorbing water, which can lock in moisture for prolonged periods, even under extreme weather conditions. This means that fields treated with these fertilizers maintain better soil humidity, reducing irrigation frequency and volume while minimizing water waste.
Beyond water retention, these fertilizers also enhance nutrient preservation. The specialized molecular structure of superabsorbent resins allows them to adsorb soil nutrients, such as nitrogen, phosphorus, and potassium, making these elements more accessible for plant uptake. This not only improves fertilizer efficiency but also helps reduce chemical fertilizer usage, alleviating environmental pressure.
Additionally, superabsorbent resin-modified fertilizers exhibit good biodegradability. Unlike traditional plastic-based fertilizers, superabsorbent resins can be decomposed by microorganisms in natural environments, avoiding long-term soil contamination. This characteristic aligns with the goals of green agriculture pursued by modern producers.
these fertilizers also have limitations. First, their production costs are relatively high, potentially increasing financial burdens for farmers. Second, the water absorption rate and retention capacity of superabsorbent resins are significantly affected by temperature, humidity, and other environmental factors, requiring optimized adjustments for specific conditions. Finally, broader adoption faces challenges such as low market recognition and difficulties in promotion.
To address these shortcomings, researchers and enterprises are actively innovating and improving products. For example, reformulating and optimizing manufacturing processes can lower costs; developing new superabsorbent resin varieties enhances stability and efficiency across diverse environments; and strengthened marketing efforts aim to raise farmer awareness and acceptance.
In the future, superabsorbent resin-modified fertilizers are poised to become a vital tool in agricultural production. They promise not only higher crop yields and quality but also sustainable agricultural development, delivering both economic and ecological benefits. With technological advancements and expanding markets, these fertilizers will play an increasingly important role in modernizing agriculture.
