Journal of Tianjin Agricultural University ›› 2023, Vol. 30 ›› Issue (4): 78-83.doi: 10.19640/j.cnki.jtau.2023.04.014

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Research progress on soil fertility improvement technology and application in new greenhouse

Wang Wei, Lu Shuchang   

  1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2022-01-27 Online:2023-08-31 Published:2023-11-01

Abstract: With the rapid development of facility agriculture, the scale proportion of new greenhouses is increasing, but there is a big gap between the soil fertility of new greenhouses and the requirements of facility efficient production. This paper makes a systematic and comprehensive study on the evaluation index of soil fertility, different soil fertilization techniques and existing problems of the new greenhouse. The results showed that the evaluation of new greenhouse fertility could refer to organic matter, total nitrogen, available phosphorus and potassium, pH, soil enzymes, micro biomass carbon and nitrogen and other indicators. The effect of organic fertilizer application technologies such as livestock and poultry manure, conditioner application and green manure turning and pressing on the improvement of soil fertility of new greenhouses is relatively stable, sustainable and comprehensive. The application technology of inorganic fertilizer based on the application of chemical fertilizer is an important way for the rapid improvement of soil available nutrients in new greenhouses. Organic-inorganic combined fertilization techno- logy integrates the advantages of the above two and has become a widely selected technical measure in greenhouse fertilization. At the same time, it is pointed out that there are some problems in soil fertility in the new greenhouse, such as the coexistence of excessive and insufficient fertility, the imbalance of fertilization structure, and the lack of in-depth research on soil fertility evaluation factors. Finally, it is proposed that building a stable, sustainable and effective fertilizer supply and retention system should be the most important for soil fertility in the new greenhouse. The research on reasonable and efficient soil fertility technology such as biological fertility, application of high-efficiency conditioning materials and combination of organic and inorganic is the main direction to improve the quality of soil fertility in the future. It can provide a reference for improving soil quality in new greenhouses and promoting the sustainable development of facility agriculture.

Key words: new greenhouse, soil fertility, technology application, research progress

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