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基于综合评估优化下层灌限制的菜:一个实地实验

Maomao Hou¹, Houdong Zhang¹, Hiba Shaghaleh²

¹College of Horticulture, Fujian Agriculture and Forest University, Fuzhou 350000, China.

Plants (Basel, Switzerland)

|April 9, 2024

概括

优化滴灌 (DR) 方法提高了生菜的产量和质量,同时减少了土壤排放. DR2灌显示出最佳的整体性能,平衡了节水,作物产量,质量和减少温室气体排放.

科学领域:

农业科学农业科学
环境科学环境科学
土壤科学土壤科学

背景情况:

优化灌通常优先考虑农作物生长而不是土壤气态碳 (C) 和 (N) 排放.
需要采用灌方法来保持作物产量和质量,同时尽量减少对环境的影响.

研究的目的:

评估不同滴灌 (DR) 方法对生菜产量,质量和土壤气体排放的影响.
确定一个最佳的灌策略,平衡作物生产率,质量和环境可持续性.

主要方法:

使用随机块设计的四种灌方法进行开放场地实验:三种滴水灌水平 (DR1,DR2,DR3) 和沟灌 (FI) 作为控制.
监测作物生长指标,生菜产量,质量参数 (原纤维,维生素C,可溶糖,酸盐) 和茎裂率.
使用模型来评估每个灌方法的综合益处.

主要成果:

与灌 (FI) 相比,滴灌 (DR) 处理通常改善了生菜的质量.
与FI相比,DR2灌显著降低了近一半的茎裂率.
在模型中,DR2方法获得了最高的综合评估值 (0.93),表明了最佳的效益.

结论:

滴灌,特别是DR2,为生菜种植提供了相对于沟灌的显著优势.
DR2灌方法有效地平衡了节水,提高产量,提高作物质量和减少土壤排放.
这项研究强调了在灌管理中考虑土壤气体排放对于可持续农业的重要性.

关键词:

滴水灌灌方式减少排放,减少排放.重系数的重系数菜菜菜菜

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