和受精率和施肥方法对玉米P积累的差异影响
Sharifullah Sharifi1,2,3, Songmei Shi4, Hikmatullah Obaid1,2,3
1National Base of International S&T Collaboration on Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing 400716, China.
Plants (Basel, Switzerland)
|July 13, 2024
概括
深度放置肥料通过减少固定和改善根部接入,显著提高了的吸收和玉米的产量. 这种方法提高了缺乏的土壤中的作物生长和可持续性.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 农业学是一种农业学.
背景情况:
- 阿富汗的作物生产受到低的限制,这影响了农业的可持续性.
- (P) 对于作物生长至关重要,但在土壤中不动,使其吸收具有挑战性.
- 优化P肥的使用对于提高作物产量和粮食安全至关重要.
研究的目的:
- 研究深层施肥在提高吸收和玉米产量的有效性.
- 在不同的 (N) 和P肥料率下,将深波段放置与广播和侧波段方法进行比较.
- 确定放置策略对P度,积累和土壤P动态的影响.
主要方法:
- 在两种玉米品种 (Xida-789和Xida-211) 进行了为期两年的盆栽实验.
- 三种肥料放置方法 (广播,侧带,深带) 用九种N和P速率组合进行了测试.
- 在播种 (DAS) 后45,60和115天分析了玉米组织和土壤P度.
主要成果:
- 与其他方法相比,深波段放置显著提高了P吸收效率,组织P度和积累.
- 这种方法导致了较高的总土壤P,奥尔森-P和P使用效率.
- 较高的N应用率 (N187和N150) 与深度放置相结合,进一步改善了P的可用性和利用率.
结论:
- 深带肥料的放置是提高P吸收,利用和玉米生产力的优越策略.
- 这种方法优化了P肥的使用,改善了玉米的生长,并最大限度地减少了环境P损失.
- 建议对现场实践进行深度放置,以改善农业中的管理.
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