HA/HTC-PVA coated with superphosphate to prepare slow-release phosphorus fertilizer: For hydroponic plant growth

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2025-03-08 DOI:10.1016/j.reactfunctpolym.2025.106257

Shuo Zhang, Shaoqi Ma, Qi Zhu

{"title":"HA/HTC-PVA coated with superphosphate to prepare slow-release phosphorus fertilizer: For hydroponic plant growth","authors":"Shuo Zhang, Shaoqi Ma, Qi Zhu","doi":"10.1016/j.reactfunctpolym.2025.106257","DOIUrl":null,"url":null,"abstract":"<div><div>In recent years, the low fertilizer utilization efficiency is prominent in the soil, and the application of fertilizer to hydroponic plants has also encountered the same problem. Due to the continuous accumulation of soluble fertilizers in the water, it is necessary to frequently change the water to ensure the appropriate nutrient concentration.To improve the utilization rate of nutrients,in this study, the core particles were prepared by bentonite and superphosphate, and the slow-release film raw materials hydrothermal carbon(<em>HTC</em>)and humic acid(<em>HA</em>)were prepared by resource utilization of agricultural waste rape stalks. Together with polyvinyl alcohol(PVA), the slow-release film was prepared by in-situ polymerization, and the slow-release particles were obtained by impregnation. The material was characterized and the results showed that hydrothermal carbon, humic acid and polyvinyl alcohol could improve the water absorption and swelling performance of the slow-release materials, and had a good slow-release effect on phosphorus(<em>P</em>)release. The initial phosphorus release rate was 10.2 % on the first day, and the nutrient release rate was 73.6 % on the 28th day, which met the slow-release standard of fertilizer. Therefore, the slow-release material has the potential to be widely used in aquatic plant cultivation.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"212 ","pages":"Article 106257"},"PeriodicalIF":4.5000,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reactive & Functional Polymers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1381514825001099","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

In recent years, the low fertilizer utilization efficiency is prominent in the soil, and the application of fertilizer to hydroponic plants has also encountered the same problem. Due to the continuous accumulation of soluble fertilizers in the water, it is necessary to frequently change the water to ensure the appropriate nutrient concentration.To improve the utilization rate of nutrients,in this study, the core particles were prepared by bentonite and superphosphate, and the slow-release film raw materials hydrothermal carbon(HTC)and humic acid(HA)were prepared by resource utilization of agricultural waste rape stalks. Together with polyvinyl alcohol(PVA), the slow-release film was prepared by in-situ polymerization, and the slow-release particles were obtained by impregnation. The material was characterized and the results showed that hydrothermal carbon, humic acid and polyvinyl alcohol could improve the water absorption and swelling performance of the slow-release materials, and had a good slow-release effect on phosphorus(P)release. The initial phosphorus release rate was 10.2 % on the first day, and the nutrient release rate was 73.6 % on the 28th day, which met the slow-release standard of fertilizer. Therefore, the slow-release material has the potential to be widely used in aquatic plant cultivation.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.