| Cite this article: | 任立军,赵文琪,陈松岭,等.有机肥和土壤调理剂组合对设施土壤氮素调控及番茄产量的影响[J].灌溉排水学报,0,():-. |
| REN Lijin,ZHAO-Wenqi,CHEN Songling,et al.有机肥和土壤调理剂组合对设施土壤氮素调控及番茄产量的影响[J].灌溉排水学报,0,():-. |
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| Effects of combination of organic fertilizer and soil conditioner on nitrogen regulation in Greenhouse Soil and tomato yield |
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REN Lijin, ZHAO-Wenqi, CHEN Songling, LI Jiaqi, ZOU-Hongtao, ZHANG-Yulong
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College of Land and Environment,Shenyang Agricultural University,Key Laboratory of Arable Land Conservation Northeast China,Ministry of Agriculture and Rural Affairs,National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources,Shenyang,110866
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| Abstract: |
| 【Objective】Organic fertilizer and soil conditioner are important measures to improve soil structure, increase soil enzyme activity and fertility. Therefore, the effects of different fertilization patterns on nitrogen regulation and tomato yield were studied in order to provide theoretical basis and data support for scientific and reasonable fertilization of greenhouse tomato. 【Method】In this study, there were five treatments, no fertilizer (CK), only chemical fertilizer (H), only organic fertilizer (Y), 50% chemical fertilizer N + 50% organic fertilizer N (HY) and 50% chemical fertilizer N + 50% organic fertilizer N + modifier (HYG), and the effects of different fertilization patterns on mineral nitrogen, total nitrogen, micro biomass nitrogen, urease and nitrate reductase activity and tomato yield of facility soil were studied. 【Result】Compared with CK treatment, each fertilization treatment significantly increased the contents of soil ammonium nitrogen and nitrate nitrogen in different soil layers at each growth stage. In the harvest period, the soil total nitrogen content and microbial biomass nitrogen content of HY treatment were significantly increased by 125.07% ~ 204.22% and 289.20% ~ 398.04% compared with CK treatment, 53.45% ~ 79.80% and 133.74% ~ 271.32% compared with H treatment. The soil urease activity in 0 ~ 20 cm soil layer was the highest at one ear fruit stage, while the soil urease activity in 20 ~ 40 cm soil layer reached the maximum at harvest stage; The activity of soil nitrate reductase in each soil layer reached the maximum in full fruit stage. Among different fertilization treatments, soil urease activity and soil nitrate reductase activity were the highest in Y treatment and the lowest in CK treatment. Compared with CK treatment, the yield increase effect of each fertilization treatment is obvious, and the yield increase range is between 11.05% ~ 38.18%. Compared with H treatment, the yield increase of HYG treatment is 38.18%, and the yield increase effect is the most significant. 【Conclusion】The treatment of 50% chemical fertilizer N + 50% organic fertilizer N can reduce agricultural cost, increase tomato yield, improve soil fertility and reduce nitrogen loss, play an important role in protecting environment and improving nitrogen utilization rate, and achieving double win of environmental benefits and economic benefits. |
| Key words: organic fertilizer; soil conditioner; tomato yield; soil enzyme |
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