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Effects of Intercropping Oat and Common Vetch on Plant Biomass Yield and Soil Nitrogen and Phosphorus Availability in Different Soil Characteristics

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Abstract

Increasing agricultural productivity and assessing the responses of soil properties in soils with different groups under intercropping are the key steps to meeting both forage demand and soil full utilization. The effect of intercropping oat (Avena sativa L.) and common vetch (Vicia sativa L.) on yield, soil nutrient availability in different soil textures was examined under five planting systems: sole common vetch (V), sole oat (O), or intercropped with common vetch at ratios 1:1, 2:1, and 3:1. The biomass in oat/common vetch intercropping 2:1 (OV2:1) and 3:1 was higher than that of other treatments except for monoculture oat. The soil available nitrogen (AN) of oat/common vetch intercropping 3:1 (OV3:1) was significantly (P < 0.05) higher than O except for chernozem. However, the soil available phosphorus (AP) in OV2:1 was significantly increased by 34.89% and 17.93%, 29.18% and 43.74%, and 39.31% and 14.22% compared with the corresponding oat monoculture while available potassium in saline-alkali was 17.57% and 11.75%, and 13.36% and 7.93% significantly higher than corresponding oat and common vetch monoculture. These results suggest that oat intercropped with common vetch at 3:1 could acquire high biomass while 2:1 is beneficial to the improvement of soil quality.

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Data Availability

The data that support the findings of this study are available from the corresponding author, (Lijun Li), upon reasonable request.

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Acknowledgements

We would like to thank the oat research team for field and data collection.

Funding

This study was funded by Inner Mongolia science and Technology major special project “Research on rational Utilization technology and Integration mode of water Resources in dryland Area” (2020ZD0005-0401), National Natural Science Foundation of China, “Mechanism and system evaluation of water conservation and carbon sequestration of agro-pastoral compound cropping pattern in ecologically fragile region of northern China” (No.31660374), and Inner Mongolia Sci-entific and Technological Achievements Transformation Project (CGZH2018141).

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Jia-hui Qu, Li-jun Li, and Pei-yi Zhao conceived and designed the experiments. Ting-ting Zhang and Guang-min Chen performed the experiments. Jin-hu Yang and Dong-yu Han performed the statistical analysis. Jiahui-Qu, Li-jun Li, and Pei-yi Zhao wrote the paper.

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Correspondence to Lijun Li or Peiyi Zhao.

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Qu, J., Li, L., Zhao, P. et al. Effects of Intercropping Oat and Common Vetch on Plant Biomass Yield and Soil Nitrogen and Phosphorus Availability in Different Soil Characteristics. J Soil Sci Plant Nutr 23, 3258–3270 (2023). https://doi.org/10.1007/s42729-023-01211-9

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  • DOI: https://doi.org/10.1007/s42729-023-01211-9

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