Effects of Nitrogen Reduction Combined with Nitrification Inhibitor and Microbial Agents on Greenhouse Cucumber Yield and Quality and Soil Nitrogen Loss
|更新时间:2025-03-12
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Effects of Nitrogen Reduction Combined with Nitrification Inhibitor and Microbial Agents on Greenhouse Cucumber Yield and Quality and Soil Nitrogen Loss
ZHAO Yuqing, YANG Ying, TIAN Xiaonan, et al. Effects of Nitrogen Reduction Combined with Nitrification Inhibitor and Microbial Agents on Greenhouse Cucumber Yield and Quality and Soil Nitrogen Loss[J]. 2023, 37(4): 267-277.
DOI:
ZHAO Yuqing, YANG Ying, TIAN Xiaonan, et al. Effects of Nitrogen Reduction Combined with Nitrification Inhibitor and Microbial Agents on Greenhouse Cucumber Yield and Quality and Soil Nitrogen Loss[J]. 2023, 37(4): 267-277. DOI: 10.13870/j.cnki.stbcxb.2023.04.033.
Effects of Nitrogen Reduction Combined with Nitrification Inhibitor and Microbial Agents on Greenhouse Cucumber Yield and Quality and Soil Nitrogen Loss
By exploring the effects of nitrogen reduction combined with nitrification inhibitor DMPP and microbial agents and their combined application on soil nitrogen losses in different ways and nitrogen absorption and utilization of cucumber planting in greenhouse
and to screen the optimum nitrogen losses regulation measures for greenhouse vegetable production system by considering both yield and quality. The cucumber variety "Jinlv 20-10" was used as the experimental material to carry out filed experiment
ammonia (NH3) volatilization and soil profile nitrate nitrogen (NO3--N) accumulation
as well as the absorption and utilization
yield
and quality indicators of nitrogen by cucumbers were monitored and analyzed. The results showed that: (1) Compared with CN treatment
the absorption and utilization of nitrogen and nitrogen utilization rate of cucumber were improved by RN
RND
RNM and RND+M treatments. Under the same nitrogen application rate
RND+M treatment could increase total nitrogen absorption in shoots of cucumber by 18.93%
especially the apparent recovery rate of applied nitrogen (REN) and agronomic efficiency of nitrogen fertilizer (AEN) could reached up to 25.30% and 41.16 kg/kg (p<0.05)
respectively
showing obvious positive synergistic effect
and better than the application of DMPP or microbial agent alone. (2) The soil N2O emission
NH3 volatilization and NO3--N accumulation in 0-120 cm soil profile were significantly decreased by 26.38%~41.45%
28.82%~37.70%
and 13.07%~62.32% in the RN
RND
RNM and RND+M treatments compared with CN
respectively. Under the same nitrogen application rate
RNM treatment had little effect on N2O emission and NH3 volatilization in soil
but it could significantly reduce the NO3--N accumulation in 90-120 cm soil layer
which was 27.35% lower than that of RN. The N2O emission in the treatments of RND and RND+M were reduced by 20.11% and 20.47%
and NO3--N accumulation in 0—120 cm soil profile were reduced by 30.06% and 24.70%
respectively
reducing the risk of nitrogen accumulation and leaching in the soil but increasing the potential risk of NH3 volatilization (p>0.05). The performance of prevention and control of nitrogen losses was as follows: RND≈RND+M≥RNM≈RN. (3) Compared with RN treatment
the cucumber yield in RND+M treatments reached up to 70.32 t/hm2. Besides
the cost-saving and profit-increasing increased 5150 yuan/hm2. Moreover
the effect of RND+M treatment on improving the quality of cucumber fruit was more obvious
and the soluble protein content was 16.36% and 4.01% higher than that of RN and RNM treatment respectively. Comprehensive considering both the economic and environmental benefits
especially from the perspective view of sustainable soil development
under the experimental conditions
nitrogen applied as top dressing at the rate of 316 kg/hm2
combined with 2% pure nitrogen of DMPP and 75 L/hm2 microbial agent
which is considered to be an appropriate nitrogen losses regulation measure to achieve the high yield and quality
and green and high-quality development of greenhouse cucumber.
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Related Author
SHEN Jianlin
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LI Yuefeng
ZHAN Huixiu
TONG Chengli
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WANG Cong
WU Jinshui
Related Institution
Guangxi Key Laboratory of Forest Ecology and Conservation,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University
Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences
Institute of Applied Ecology, Chinese Academy of Sciences
University of Chinese Academy of Sciences
National Field Observation and Research Station of Shenyang Agro-ecosystems