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在甘中优化叶子N-fertilization取决于植物基因型和度

Saulo Augusto Quassi de Castro^1,2,3, Renata Alcarde Sermarini⁴, Monica Lanzoni Rossi⁵

¹Department of Soil Science, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil.

Physiologia plantarum

|December 26, 2023

概括

甘中的叶子化 (FNf) 显示出高回收率 (62.3%),其中茎是主要的沉积点. 优化基因型和度将毒性降至最低,并最大限度地提高效益.

科学领域:

农业科学农业科学
植物生理学植物生理学
农业学是一种农业学.

背景情况:

叶子化 (FNf) 为基于土壤的方法提供了一个有希望的替代方案,以同步植物的需求和应用时间.
减少对环境的气损失是FNf的一个主要好处.
关于FNF在甘中的有效性和优化,目前的研究有限.

研究的目的:

为了优化甘中的叶子N肥.
评估工厂的回收 (NRP) 并评估潜在的毒性影响.
调查基因型和度对FNf效率的影响.

主要方法:

四种甘基因型通过在五种不同度的叶子上应用15N-尿素进行了治疗.
植物的回收 (NRP) 在五个时间点测量了各种植物部分 (根,茎,叶) 的回收.
用形态解剖学和体化学技术分析了叶子烧伤,以评估FNF的毒性.

主要成果:

叶子N-fertilization导致了植物的高平均回收率 (62.3%).
茎被确定为15N-尿素的主要沉积点,其次是未扩张的叶子 (UEL).
叶子烧灼强度因基因型而异,并且随着15N-尿素度的增加而增加,表明基因型特异性毒性.

结论:

叶子N肥在甘中是有效的,具有显著的吸收和潜在的环境和经济效益.
精心选择甘基因型和适当的度对于优化FNF效率和最大限度地降低毒性至关重要.
对再分配模式和基因型特异性反应的进一步研究可以增强FNF策略.

关键词:

标有的标签上的.叶子灼热的烧灼气回收的方法气回收甘的品种甘的品种尿素 urea 的使用方法

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