The effects of different biodiversity-based cropping systems on ryegrass (Lolium multiflorum Lam.) biomass, nitrogen, carbon accumulation and soil nutrients

IF 6.4 1区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Agriculture, Ecosystems & Environment Pub Date : 2025-10-04 DOI:10.1016/j.agee.2025.110018

Yuzhuo Pan , Weihu Wang , Xia Yu , Shihao Xiao , Tingxian Yan , Meijuan Lu , Wenting Yang

{"title":"The effects of different biodiversity-based cropping systems on ryegrass (Lolium multiflorum Lam.) biomass, nitrogen, carbon accumulation and soil nutrients","authors":"Yuzhuo Pan , Weihu Wang , Xia Yu , Shihao Xiao , Tingxian Yan , Meijuan Lu , Wenting Yang","doi":"10.1016/j.agee.2025.110018","DOIUrl":null,"url":null,"abstract":"<div><div>Cover crops are an interesting option for designing biodiversity-based cropping systems and moving toward agroecological systems. However, the influence of different biodiversity-based cropping systems on the cover crop biomass, nitrogen and carbon storage and soil nutrient is still unclear. In this four-year field experiments, two cropping systems (sweet corn monocropping+ryegrass, MC; sweet corn-soybean intercropping+ryegrass, CS) and three nitrogen rates for sweet corn (N0, 0 kg N ha<sup>−1</sup>, N1, 150 kg N ha<sup>−1</sup>, N2, 300 kg N ha<sup>−1</sup>) were designed to investigate the effects of different cropping systems and N rates of the preceding crops (sweet corn) on biomass production, carbon and nitrogen accumulation of ryegrass and soil nutrients. The results indicated that the cumulative dry matter yields of ryegrass were significantly higher in the preceding intercropping system than that in the preceding monocropping system under N2. However, the preceding intercropping system suppressed the ryegrass biomass production under N0 and N1. Compared to N0, N2 increased ryegrass yield and carbon accumulation across all four years in both cropping systems (CS and MC), with the exception of the MC in 2021. Additionally, N2 increased ryegrass N accumulation across all four years in both cropping systems. However, N2 reduced the C/N ratio across all four years in the CS. Moreover, under N2, the soil nitrate was reduced in CS compared to MC in 2021 and 2022. The preceding intercropping had a significant negative correlation between soil nitrate-N and biomass, carbon and nitrogen accumulation of ryegrass under N2. In MC, ryegrass biomass, carbon and nitrogen accumulation, and C/N ratio were positive correlated with soil Olsen phosphorus with N application increasing, but had a contrary result in CS. In conclusion, the preceding cropping system and nitrogen rate for the preceding crop could affect the biomass production, and carbon and nitrogen accumulation of cover crop (ryegrass). Therefore, in order to increasing the biomass of cover crop and reducing soil residual nitrogen loss, the reasonable preceding cropping system and nitrogen application should be considered.</div></div>","PeriodicalId":7512,"journal":{"name":"Agriculture, Ecosystems & Environment","volume":"396 ","pages":"Article 110018"},"PeriodicalIF":6.4000,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Agriculture, Ecosystems & Environment","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S016788092500550X","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Cover crops are an interesting option for designing biodiversity-based cropping systems and moving toward agroecological systems. However, the influence of different biodiversity-based cropping systems on the cover crop biomass, nitrogen and carbon storage and soil nutrient is still unclear. In this four-year field experiments, two cropping systems (sweet corn monocropping+ryegrass, MC; sweet corn-soybean intercropping+ryegrass, CS) and three nitrogen rates for sweet corn (N0, 0 kg N ha⁻¹, N1, 150 kg N ha⁻¹, N2, 300 kg N ha⁻¹) were designed to investigate the effects of different cropping systems and N rates of the preceding crops (sweet corn) on biomass production, carbon and nitrogen accumulation of ryegrass and soil nutrients. The results indicated that the cumulative dry matter yields of ryegrass were significantly higher in the preceding intercropping system than that in the preceding monocropping system under N2. However, the preceding intercropping system suppressed the ryegrass biomass production under N0 and N1. Compared to N0, N2 increased ryegrass yield and carbon accumulation across all four years in both cropping systems (CS and MC), with the exception of the MC in 2021. Additionally, N2 increased ryegrass N accumulation across all four years in both cropping systems. However, N2 reduced the C/N ratio across all four years in the CS. Moreover, under N2, the soil nitrate was reduced in CS compared to MC in 2021 and 2022. The preceding intercropping had a significant negative correlation between soil nitrate-N and biomass, carbon and nitrogen accumulation of ryegrass under N2. In MC, ryegrass biomass, carbon and nitrogen accumulation, and C/N ratio were positive correlated with soil Olsen phosphorus with N application increasing, but had a contrary result in CS. In conclusion, the preceding cropping system and nitrogen rate for the preceding crop could affect the biomass production, and carbon and nitrogen accumulation of cover crop (ryegrass). Therefore, in order to increasing the biomass of cover crop and reducing soil residual nitrogen loss, the reasonable preceding cropping system and nitrogen application should be considered.

查看原文本刊更多论文

不同生物多样性种植制度对黑麦草生物量、氮、碳积累和土壤养分的影响

覆盖作物是设计基于生物多样性的种植系统和向农业生态系统发展的一个有趣的选择。然而，不同生物多样性种植制度对覆盖作物生物量、氮碳储量和土壤养分的影响尚不清楚。在为期4年的田间试验中，设计了2种种植制度（甜玉米单作+黑麦草，MC；甜玉米-大豆间作+黑麦草，CS）和3种施氮量（N0、0 kg N ha - 1、N1、150 kg N ha - 1、N2、300 kg N ha - 1）的甜玉米，研究了不同种植制度和前茬作物（甜玉米）施氮量对生物量生产、黑麦草碳氮积累和土壤养分的影响。结果表明：N2条件下，间作黑麦草的累积干物质产量显著高于单作；而在N0和N1条件下，原有间作制度抑制了黑麦草生物量产量。与N0相比，在两种种植制度（CS和MC）中，除MC在2021年外，N2在所有四年中都增加了黑麦草产量和碳积累。此外，氮肥增加了黑麦草4年氮素积累。然而，N2降低了CS四年中的碳氮比。此外，在N2条件下，2021年和2022年，CS土壤硝态氮含量较MC降低。套作前土壤硝态氮与氮肥处理下黑麦草生物量、碳氮积累量呈显著负相关。随着施氮量的增加，黑麦草生物量、碳氮积累量和碳氮比与土壤奥尔森磷呈显著正相关，而CS则相反。综上所述，前作制度和前作施氮量会影响覆盖作物（黑麦草）的生物量和碳氮积累。因此，为增加覆盖作物生物量，减少土壤残氮流失，应考虑合理的前作制度和施氮。

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

Agriculture, Ecosystems & Environment 环境科学-环境科学

CiteScore

11.70

自引率

9.10%

发文量

392

审稿时长

26 days

期刊介绍： Agriculture, Ecosystems and Environment publishes scientific articles dealing with the interface between agroecosystems and the natural environment, specifically how agriculture influences the environment and how changes in that environment impact agroecosystems. Preference is given to papers from experimental and observational research at the field, system or landscape level, from studies that enhance our understanding of processes using data-based biophysical modelling, and papers that bridge scientific disciplines and integrate knowledge. All papers should be placed in an international or wide comparative context.