Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.still.2022.105386 |
| Title (Primary) | Improved nitrogen use efficiency, carbon sequestration and reduced environmental contamination under a gradient of manure application |
| Author | Xie, J.; Shi, X.; Zhang, Y.; Wan, Y.; Hu, Q.; Zhang, Y.; Wang, J.; He, X.; Blagodatskaya, E. |
| Source Titel | Soil & Tillage Research |
| Year | 2022 |
| Department | BOOEK |
| Volume | 220 |
| Page From | art. 105386 |
| Language | englisch |
| Topic | T5 Future Landscapes |
| Keywords | Rice; Soil properties; N uptake; C accumulation; N use efficiency; N surplus |
| Abstract | The challenge of reducing the environmental contamination related to agricultural practices to improve nitrogen (N) use efficiency (NUE), carbon (C) sequestration, and crop yield, requires efficient N fertilization and management strategies. We carried out a field experiment from 2016 to 2018 exploring the effect of the gradual replacement of mineral N with organic manure N on soil properties, soil organic C storage, soil total N storage, rice grain yield and yield components, N uptake and C accumulation of rice, and NUE. Moreover, we explained the relationship among the proportions of manure added to fertilizers, soil properties, rice grain yield and yield components, and aboveground N uptake and C accumulation of rice after harvest. Compared to mineral fertilization, 50% manure improved NUE and increased the effective panicle, seed setting rate, grain yield, and straw yield. However, in comparison to mineral fertilization, 100% manure decreased the effective panicle, the number of spikelets per panicle, grain yield, and straw yield and decreased partial factor productivity (PFP), N agronomic efficiency (AEN), and N recovery efficiency (REN). Moreover, in comparison with mineral fertilization, 50% manure increased the aboveground N uptake and C accumulation of rice, decreased the N surplus by 61.5%, and increased the apparent accumulated N recovery efficiency by 10.7%. In comparison to mineral fertilization, manure percentages exceeding 25% increased the total and available N, phosphorus, potassium, and organic C contents in soil. According to redundancy analysis, aboveground C accumulation and N uptake of rice jointly contributed to the variation in grain yields and yield components by 27.9%. In conclusion, 50% manure is a promising ecologically friendly strategy that improves the grain yield, N uptake, C sequestration, and NUE of rice and improves soil fertility. Simultaneously, 50% manure decreases the risk of environmental contamination. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25994 |
| Xie, J., Shi, X., Zhang, Y., Wan, Y., Hu, Q., Zhang, Y., Wang, J., He, X., Blagodatskaya, E. (2022): Improved nitrogen use efficiency, carbon sequestration and reduced environmental contamination under a gradient of manure application Soil Tillage Res. 220 , art. 105386 10.1016/j.still.2022.105386 |
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