Tef [Eragrostis tef (zucc) Trotter]在可变湿度条件下对碳化大米皮的应用做出回应的产量,住宿和用水效率
Mekonnen Gebru Tekle1,2, Getachew Alemayehu2, Yayeh Bitew2
1College of Agriculture and Natural Resource Management, Wolkite University, Horticulture, Wolkite, Gurage, Ethiopia.
PloS one
|March 7, 2024
概括
优化水分耗尽水平 (MDL) 和碳化大米 (CRH) 在tef种植中的应用可以提高住宿阻力和收获指数,这对埃塞俄比亚高地至关重要. 为了更广泛的应用,建议进行进一步的研究.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 土壤科学 土壤科学
背景情况:
- 埃塞俄比亚高原的特夫 (Eragrostis tef) 种植面临着严重的产量限制,原因是极端干旱和住宿.
- 严重受天气影响的土壤加剧了这些挑战,影响了作物生产率和稳定性.
研究的目的:
- 调查不同水分耗尽水平 (MDL) 和碳化大米 (CRH) 应用对特产量和投放的影响.
- 确定最优的管理策略,以改善在具有挑战性的土壤和气候条件下提高的弹性.
主要方法:
- 进行了一项为期两年的分图因子实验,使用四个MDL (20%,35%,55%,75%) 和四个CRH率 (0,291,582,873公斤/ha-1).
- 评估了农学特征,包括叶面积指数 (LAI),存放指数 (LI),植物高度,每个植物的耕种者和收获指数 (HI).
- 进行了聚合平均值和个别年差异分析 (ANOVA).
主要成果:
- 聚合ANOVA表明MDL和CRH对LAI和LI没有显著的主要或相互作用影响. 然而,单个年份的分析显示了LI和LAI的显著相互作用.
- 最低的投放指数 (LI) 被观察到在2022年较高的CRH申请率 (873公斤/ha-1和582公斤/ha-1).
- 湿度耗尽水平显著影响了植物高度和每个植物的耕者,以及收获指数 (HI),但不是谷物产量,草产量或用水效率.
结论:
- 虽然综合分析没有显示出显著的产量差异,但在MDL的55%下灌tef最大化了收获指数 (33.8%) 和改善了入住阻力 (LI为31.9%).
- 这些发现表明,优化MDL和CRH应用可以增强tef的住宿阻力和收获指数.
- 建议进一步进行多个地点的研究,以验证这些发现,以便在埃塞俄比亚高地农业中更广泛地适用.
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