可以增加豆的生长,产量,营养含量和耐旱性 (Vigna radiata L. 威尔切克 (Wilczek) 的意思
Mohammad Rafiqul Islam1, Umakanta Sarker2, Mohammad Golam Azam3
1Agronomy Division, Regional Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Ishwardi, Pabna, 6620, Bangladesh.
Scientific reports
|April 23, 2024
概括
补充 (K) 施肥显著提高了豆在水应激 (WS) 下的性能. 使用推的K肥 (RKF) 增加125%的K,最大限度地提高了用水效率 (WUE) 和产量,这对于干旱地区的可持续农业至关重要.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 土壤科学 土壤科学
背景情况:
- 干旱是由不规律的降雨和高温引起的,对热带和亚热带地区的夏季豆种植构成了重大挑战.
- (K) 是一种重要的植物营养素,已知可以提高植物对水应激 (WS) 的耐受性.
研究的目的:
- 研究不同 (K) 肥料水平对水利用效率 (WUE),生长,产量属性,营养含量和水压条件下的豆产量的影响.
- 确定最佳的K化肥策略,以减轻干旱影响,确保可持续的豆生产.
主要方法:
- 现场试验是使用两种豆基因型 (耐干旱的BMX-08010-2和易干旱的BARI Mung-1) 和七种K级肥料 (KL) 在雨棚下进行的.
- 测量包括用水效率 (WUE),营养含量 (N,P,K,S),总干物质 (TDM),叶面积指数 (LAI),作物生长率 (CGR),根量 (RV),根密度 (RD),植物高度和产量组件.
主要成果:
- 水利用效率 (WUE) 从4.73到8.14公斤-1毫米-1不等,最高记录在WS (8.14公斤-1毫米-1) 下增加了125%的K (KL7),产生了1093.60公斤-1.1.
- 增加K水平,特别是KL7,显著改善了所有测量的特征,包括营养含量,TDM,LAI,CGR,RV,RD,植物高度和产量组件,与仅在WS (KL2) 下推的K肥 (RKF) 相比.
- 与RKF相比,KL7的谷物产量增长最高为32.52%与RKF的较低K水平相比,这表明在干旱条件下补充K的实质性益处.
结论:
- 补充的应用对于提高豆的性能和减轻水应激 (WS) 的负面影响至关重要.
- 优化K化肥,特别是额外的K超出推水平,可以显著提高用水效率 (WUE) 和产量,有助于干旱地区可持续的豆生产.
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