Effects of Straw and Nitrogenous Fertilizers on the Soil Aggregate Stability and Quality in Subtropical Regions of China

IF 3.4 3区 农林科学 Q2 ENVIRONMENTAL SCIENCES
Jia Yi Yang, Shahbaz Atta Tung, Jin Ting Xu, Yan Qiong Pan, Li Yang, Xun Bo Zhou
{"title":"Effects of Straw and Nitrogenous Fertilizers on the Soil Aggregate Stability and Quality in Subtropical Regions of China","authors":"Jia Yi Yang, Shahbaz Atta Tung, Jin Ting Xu, Yan Qiong Pan, Li Yang, Xun Bo Zhou","doi":"10.1007/s42729-024-01955-y","DOIUrl":null,"url":null,"abstract":"<p>To optimize the utilization of straw resources and devise appropriate nitrogen fertilizer application strategies, this study centers on enhancing soil productivity while boosting double-season maize yield in Guangxi, ultimately aiming to foster sustainable agricultural development while pursuing yield. It was a five-year split-plot study where the main plots were straw return and traditional planting treatments, and the subscript were 0 and 250 kg ha<sup>− 1</sup> N fertilizer applications. The soil physicochemical property were determined in 0–20 cm and 20–40 cm soil depth. Furthermore, soil samples were fractionated into different size aggregates, followed by a measurement of aggregate distribution and nutrient content. Our findings revealed a distribution trend of large macro-aggregates (&gt; 2000 μm) &gt; small macro-aggregates (250–2000 μm) &gt; micro-aggregates (53–250 μm), with a notably small proportion of aggregates &lt; 0.053 μm. Specifically, 250 kg ha<sup>− 1</sup> nitrogen application under straw return (SRN250) demonstrated an enhancement in soil aggregate organic carbon (SOC) content, leading to improved soil physical attributes and stability within the 0–40 cm soil depth. Changes in aggregate total nitrogen, total phosphorus, and total potassium were predominantly observed in the 0–20 cm soil depth. Furthermore, a positive correlation was established between SOC and aggregate stability. The experimental results show that the SRN250 management practice can not only increase maize yields but also enhance the soil fertility within five years. Additionally, the study highlights the crucial role of SOC content in facilitating aggregate formation and increasing large macro-aggregates distribution, indicating the importance of maintaining SOC content for soil health and sustainability.</p>","PeriodicalId":17042,"journal":{"name":"Journal of Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Soil Science and Plant Nutrition","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s42729-024-01955-y","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

To optimize the utilization of straw resources and devise appropriate nitrogen fertilizer application strategies, this study centers on enhancing soil productivity while boosting double-season maize yield in Guangxi, ultimately aiming to foster sustainable agricultural development while pursuing yield. It was a five-year split-plot study where the main plots were straw return and traditional planting treatments, and the subscript were 0 and 250 kg ha− 1 N fertilizer applications. The soil physicochemical property were determined in 0–20 cm and 20–40 cm soil depth. Furthermore, soil samples were fractionated into different size aggregates, followed by a measurement of aggregate distribution and nutrient content. Our findings revealed a distribution trend of large macro-aggregates (> 2000 μm) > small macro-aggregates (250–2000 μm) > micro-aggregates (53–250 μm), with a notably small proportion of aggregates < 0.053 μm. Specifically, 250 kg ha− 1 nitrogen application under straw return (SRN250) demonstrated an enhancement in soil aggregate organic carbon (SOC) content, leading to improved soil physical attributes and stability within the 0–40 cm soil depth. Changes in aggregate total nitrogen, total phosphorus, and total potassium were predominantly observed in the 0–20 cm soil depth. Furthermore, a positive correlation was established between SOC and aggregate stability. The experimental results show that the SRN250 management practice can not only increase maize yields but also enhance the soil fertility within five years. Additionally, the study highlights the crucial role of SOC content in facilitating aggregate formation and increasing large macro-aggregates distribution, indicating the importance of maintaining SOC content for soil health and sustainability.

Abstract Image

秸秆和氮肥对中国亚热带地区土壤团粒结构稳定性和质量的影响
为优化秸秆资源利用,制定适当的氮肥施用策略,本研究以提高广西双季玉米产量的同时提高土壤生产力为中心,最终在追求产量的同时促进农业可持续发展。该研究为期五年,主区为秸秆还田和传统种植处理,副区为氮肥施用量为 0 和 250 kg ha- 1。土壤理化性质测定的深度分别为 0-20 厘米和 20-40 厘米。此外,土壤样本被分成不同大小的团聚体,然后测量团聚体的分布和养分含量。我们的研究结果表明,土壤中的聚集体呈大型聚集体(> 2000 μm)> 小型聚集体(250-2000 μm)> 微型聚集体(53-250 μm)的分布趋势,而聚集体(< 0.053 μm)所占比例很小。具体而言,在秸秆还田条件下施用 250 千克/公顷氮肥(SRN250)可提高土壤团聚体有机碳(SOC)含量,从而改善 0-40 厘米土壤深度内的土壤物理属性和稳定性。总氮、总磷和总钾的变化主要出现在 0-20 厘米土壤深度。此外,SOC 与团聚体稳定性之间还存在正相关关系。实验结果表明,SRN250 管理方法不仅能提高玉米产量,还能在五年内提高土壤肥力。此外,该研究还强调了 SOC 含量在促进团聚体形成和增加大型团聚体分布方面的关键作用,表明保持 SOC 含量对土壤健康和可持续性的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Soil Science and Plant Nutrition
Journal of Soil Science and Plant Nutrition Agricultural and Biological Sciences-Soil Science
CiteScore
5.90
自引率
10.30%
发文量
331
审稿时长
9 months
期刊介绍: The Journal of Soil Science and Plant Nutrition is an international, peer reviewed journal devoted to publishing original research findings in the areas of soil science, plant nutrition, agriculture and environmental science. Soil sciences submissions may cover physics, chemistry, biology, microbiology, mineralogy, ecology, pedology, soil classification and amelioration. Plant nutrition and agriculture submissions may include plant production, physiology and metabolism of plants, plant ecology, diversity and sustainability of agricultural systems, organic and inorganic fertilization in relation to their impact on yields, quality of plants and ecological systems, and agroecosystems studies. Submissions covering soil degradation, environmental pollution, nature conservation, and environmental protection are also welcome. The journal considers for publication original research articles, technical notes, short communication, and reviews (both voluntary and by invitation), and letters to the editor.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信