Loading...
Please wait, while we are loading the content...
Similar Documents
Can Split Application of Slow-Release Fertilizer Improve Wheat Yield, Nitrogen Efficiency and Their Stability in Different Ecological Regions?
| Content Provider | MDPI |
|---|---|
| Author | Ma, Quan Tao, Rongrong Ding, Yonggang Zhang, Xinbo Li, Fujian Zhu, Min Ding, Jinfeng Li, Chunyan Guo, Wenshan Zhu, Xinkai Sheng, Haijun |
| Copyright Year | 2022 |
| Description | Environmental conditions (precipitation, temperature and soil properties) differ greatly in different regions and have dual effects on the wheat growth and nutrient release of slow-release fertilizer (SRF). Conventional fertilization methods such as the multiple-split application of urea and the one-time application of SRF may have difficulty achieving a stable and high wheat yield and nitrogen (N) efficiency in various environments. Therefore, the exploration of a rational application strategy of SRF is needed for improving wheat yield and its stability in different regions. A two-year field experiment was conducted in different regions (eight test sites per year) with five patterns: 100% N (270 kg $ha^{−1}$) SRF applied pre-sowing (M1); 60% N SRF applied pre-sowing and 40% N urea applied at jointing (M2); 60% N SRF applied pre-sowing and 40% N SRF applied at re-greening (M3); M2 reducing the N rate by 15% (M4); M3 reducing the N rate by 15% (M5). The fourth-split application of urea was taken as the control (CK, 270 kg N $ha^{−1}$). The results suggested that the average yield in M1 decreased by 3.65% of the CK, and the yield stability was poor. Both M2 and M3 significantly increased N efficiency, grain yield and benefit, but the stability of M3 was higher than that of M2 in different environments. Considering further improvements in wheat yield, N efficiency and profit, our results suggested that the twice-split application of SRF, which also improved the adaptability of wheat in different environments, could be recommended for wheat cultivation. |
| Starting Page | 407 |
| e-ISSN | 20734395 |
| DOI | 10.3390/agronomy12020407 |
| Journal | Agronomy |
| Issue Number | 2 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-02-06 |
| Access Restriction | Open |
| Subject Keyword | Agronomy Agricultural Engineering Slow-release Fertilizer Different Environments Wheat Yield Nitrogen Agronomic Efficiency Stability |
| Content Type | Text |
| Resource Type | Article |
