Full
Outline
To clarify the effects of one-time basal application of different types of controlled-release fertilizers on rice-stubble wheat, a field experiment was conducted using the wheat cultivar Huaimai 139. Four types of controlled-release fertilizer treatments were applied: vegetable oil-coated controlled-release compound fertilizer (A, N 26%), polyurethane-coated controlled-release compound fertilizer (B, N 32%), polyurethane-coated controlled-release nitrogen fertilizer (C, N 43%), and water-based resin-coated nitrogen fertilizer (D, N 43%). A treatment with split application of urea was used as control (CK, nitrogen applied at a basal to tillering to jointing to booting ratio of 5∶1∶2∶2), and a non-nitrogen treatment (N0) was set up caculate the nitrogen efficiency. The dry matter production, nitrogen accumulation, yield and economic benefits of rice-stubble wheat under different treatments were analyzed. The results showed that, compared with CK, A and B treatments significantly reduced nitrogen accumulation from jointing to heading and from heading to maturity, as well as nitrogen use efficiency. In A and B treatments, the number of spikes, grains per spike, and thousand-kernel weight were significantly decreased, leading to lower yield. C treatment significantly increased nitrogen accumulation at all key growth stages, enhanced photosynthetic capacity, nitrogen use efficiency, dry matter accumulation at maturity, thousand-kernel weight, yield, and net economic benefits. Yields in 2021-2022 and 2022-2023 increased by 3.89% and 5.35%, respectively, and the net benefit in 2022-2023 increased by 3.27%. D treatment showed no significant difference compared with CK in nitrogen accumulation patterns or yield, indicating stable performance. In conclusion, one-time basal application of polyurethane-coated nitrogen fertilizer can effectively meet nitrogen demand during mid-to-late growth stages, optimize yield formation, and improve both yield and economic efficiency.
111
24
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
