Effects of Irrigation Strategy and Plastic Film Mulching on Soil N 2 O Emissions and Fruit Yields of Greenhouse Tomato

Yuan Li, Mingzhi Zhang, Zhenguang Lu, Yushun Zhang and Jingwei Wang
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Yuan Li: Northwest Land and Resources Research Center, Shaanxi Normal University, Xi’an 710119, China
Mingzhi Zhang: Henan Provincial Water Conservancy Research Institute, Zhengzhou 450053, China
Zhenguang Lu: Henan Provincial Water Conservancy Research Institute, Zhengzhou 450053, China
Yushun Zhang: Henan Provincial Water Conservancy Research Institute, Zhengzhou 450053, China
Jingwei Wang: College of Resources and Environment, Shanxi University of Finance and Economics, Taiyuan 030006, China

Agriculture, 2022, vol. 12, issue 2, 1-15

Abstract: Agriculture is a major source of global greenhouse gas emissions. Approximately 1/3 of vegetables in China are produced in greenhouses. However, the effects of different irrigation strategies and plastic film (PF) mulching combinations on N 2 O emissions and tomato fruit yields in greenhouses are unclear. The aims of this study were to explore the effects of micro-sprinkler irrigation under plastic film (MSPF), drip irrigation under plastic film (DIPF) and micro-sprinkler irrigation (MSI) on the soil nutrients, enzyme activity, nirS -type denitrifying bacterial community, N 2 O emissions and fruit yields of tomato. The results showed that MSPF could improve the uniformity of soil water distribution and surface (0–40 cm) soil water content. Film mulching could increase soil temperature at depths of 5–25 cm. Both MSPF and DIPF increased microbial nitrogen, promoted the activity of rhizosphere soil urease and leucine aminopeptidase, changed the community of denitrifying bacteria, accelerated the turnover of soil nutrients and improved yield and water use efficiency. PF mulching had a greater impact on the nirS -type denitrifying bacterial community when compared to irrigation strategy. We conclude that MSPF can be used to configure commercially available installation and operation. The comprehensive benefit of MSPF treatment is that it is more profitable than that of DIPF.

Keywords: irrigation strategy; plastic film mulching; denitrifying bacteria community; N 2 O emissions; yield (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: Add references at CitEc
Citations: View citations in EconPapers (1)

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