Comparison of the hydrolysis characteristics of three polyphosphates and their effects on soil phosphorus and micronutrient availability

聚磷酸盐 化学 水解 聚磷酸铵 磷酸盐 钙质的 微量营养素 环境化学 农学 生物化学 植物 有机化学 原材料 生物
作者
Xuewei Wang,Yanju Gao,Baowei Hu,Guixin Chu
出处
期刊:Soil Use and Management [Wiley]
卷期号:35 (4): 664-674 被引量:36
标识
DOI:10.1111/sum.12526
摘要

Abstract Polyphosphate is an alternative phosphorus (P) source which can substitute for orthophosphate‐based P fertilizers in agriculture. In order to explore the effects of polyphosphate addition on soil P availability, and how pH and temperature affect polyphosphate hydrolysis, an aqueous and a soil incubation experiment were conducted at different pH s (5.0 and 8.2) and temperatures (15, 25 and 35°C); the influence of polyphosphate addition on soil available micronutrients (i.e., iron—Fe, manganese—Mn and zinc—Zn) was also studied. The experiments used three different polyphosphate fertilizers (solid and liquid ammonium polyphosphate and polyphosphoric acid) and two soil types (acid and alkaline). In aqueous incubation conditions, the average amount of phosphate ( ) released from polyphosphate fertilizers at 35°C was 2.7 times greater than at 25°C. The average Olsen P in polyphosphate‐treated soil at 35°C was 1.12 times greater than at 25°C, indicating that higher temperature facilitates polyphosphate hydrolysis. Polyphosphate hydrolysis increased as the pH decreased in aqueous solution, but its hydrolysis rate was greater in calcareous soil than in acid soil. Moreover, polyphosphate significantly increased soil available Fe, Mn and Zn concentrations by an average of 14%, 16% and 20%, respectively, relative to orthophosphate fertilizer. In summary, high temperature and low pH favour the hydrolysis of short‐chain polyphosphate (aqueous incubation experiment), and polyphosphate significantly increases soil P availability and mobilizes soil micronutrients. The application of polyphosphate can be recommended as a pragmatic P management strategy in agriculture: however, soil temperature and pH should be taken into account when using polyphosphate fertilizers.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Smile:)完成签到 ,获得积分10
刚刚
刚刚
芋圆Z.完成签到,获得积分10
1秒前
赵亚伟发布了新的文献求助10
2秒前
ZZZ完成签到,获得积分10
4秒前
栗子完成签到 ,获得积分10
6秒前
等待的盼波完成签到,获得积分10
6秒前
CAOHOU应助嘟嘟请让一让采纳,获得10
6秒前
6秒前
天天向上完成签到,获得积分10
6秒前
野原小龙虾完成签到,获得积分10
7秒前
time完成签到,获得积分10
7秒前
7秒前
阿绿发布了新的文献求助10
11秒前
12秒前
12秒前
雨柏完成签到 ,获得积分10
12秒前
wanci应助qwe1108采纳,获得10
13秒前
明天过后完成签到,获得积分10
15秒前
jin完成签到,获得积分10
16秒前
yhy完成签到 ,获得积分10
17秒前
黑色卡布奇诺完成签到,获得积分20
17秒前
tanglu发布了新的文献求助10
17秒前
可爱的函函应助梁大海采纳,获得10
17秒前
成就绮琴完成签到 ,获得积分10
18秒前
xicifish完成签到,获得积分10
18秒前
目光之澄完成签到,获得积分10
19秒前
wanci应助研友_ndDPBn采纳,获得10
19秒前
耍酷的白梦完成签到,获得积分10
20秒前
miracle完成签到 ,获得积分10
21秒前
coding完成签到,获得积分10
22秒前
23秒前
犹豫水蓝完成签到,获得积分10
24秒前
yin完成签到,获得积分10
24秒前
JUGG完成签到,获得积分10
24秒前
CipherSage应助阿湫采纳,获得10
25秒前
FIN应助手机采纳,获得20
25秒前
星辰大海应助东黎采纳,获得10
25秒前
量子星尘发布了新的文献求助10
25秒前
wujingshuai完成签到,获得积分10
26秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038524
求助须知:如何正确求助?哪些是违规求助? 3576221
关于积分的说明 11374737
捐赠科研通 3305912
什么是DOI,文献DOI怎么找? 1819354
邀请新用户注册赠送积分活动 892688
科研通“疑难数据库(出版商)”最低求助积分说明 815048