优化小麦料中的源:关于生长,产量和氨挥发的实地研究
Muhammad Sajid Farooq1, Rashid Mahmood2, Aaqib Hameed1
1Department of Agronomy Faculty of Agricultural Sciences University of the Punjab, Lahore, Pakistan.
Scientifica
|October 8, 2024
概括
用VnU-20等涂层尿素的顶层小麦显著减少了氨气挥发和性土壤中的损失. 这与传统的源相比,提高了使用效率,作物健康和谷物产量.
科学领域:
- 农业学是一种农业学.
- 土壤科学 土壤科学
- 植物营养 植物营养
背景情况:
- 氨气挥发是性石灰质土壤中主要的损失途径,降低了作物使用效率.
- 优化 (N) 上衣策略对于提高作物生产率和最大限度地减少环境损失至关重要.
研究的目的:
- 评估各种 (N) 上衣来源对小麦种植中的氨挥发的影响.
- 评估这些源对小麦生长,吸收和两个生长季节的谷物产量的影响.
主要方法:
- 小麦用基数剂量的酸 (DAP) 和尿素受精,其次是不同的顶层N来源.
- 顶部处理的N来源包括化尿素 (PU),颗粒性尿素 (GU),硫酸 (AS),酸 (CAN) 和新型涂层尿素 (VnU-20,VnU-40,BU,PPDU).
- 氨气挥发被监测了12周,并记录了小麦生长参数,度和产量.
主要成果:
- 从基底N的氨损失是一致的 (约4%的应用N). 上面处理的硫酸 (AS) 和颗粒性尿素 (GU) 在第一年显示出更高的损失.
- 在第二年,涂层尿素显著降低了氨损失,与涂层尿素 (PU) 相比,VnU-40的损失减少了48%.
- 减少氨损失与谷物和草中较高的度相关. VnU-20的应用导致谷物产量比PU增加27%.
结论:
- 使用涂层尿素配方,特别是VnU-20的上衣有效地减轻了性土壤中的氨挥发.
- 涂层尿素提高了使用效率,改善了作物的状况,并提高了小麦的经济产量.
- 选择合适的N上衣来源对于可持续农业至关重要,减少环境N损失并提高作物生产率.
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