肥类型和施加率对菜的生长,酸盐积累和收获后质量的影响
Kemal Yalçın Gülüt1, Gamze Güleç Şentürk1
1Department of Soil Science and Plant Nutrition/Faculty of Agriculture, Çukurova University, Sarıçam, Adana, Turkey.
PeerJ
|July 16, 2024
概括
选择合适的化肥对于菜的生长和质量至关重要. 缓释硫酸盐 (SRAS) 和酵母残留物 (YR) 显示出对管理酸盐水平的前景,与可以超过安全限量的酸盐 (CN) 不同.
科学领域:
- 农业科学 农业科学
- 园艺园艺 园艺园艺
- 植物营养 植物营养
背景情况:
- 优化 (N) 供应对于菜 (Spinacia oleracea) 种植至关重要,影响植物生长和酸盐 (NO3-) 积累.
- 有效的肥管理对于实现菜的理想产量和储存质量至关重要.
研究的目的:
- 评估不同类型的肥和施加率对菜生长,酸盐积累和收获后储存质量的影响.
- 为了比较硫酸 (AS),缓释硫酸 (SRAS),酸 (CN) 和酵母残留物 (YR) 在不同剂量的N下的疗效.
主要方法:
- 菜植物在温室条件下在子里种植,并用四种N类型的肥料 (AS,SRAS,CN,YR) 在五种N剂量 (25,50,200,400毫克Nkg-1) 处理.
- 测量了包括SPAD值 (叶绿素),植物高度和新鲜体重在内的生长参数.
- 叶子中的酸盐含量在收获 (第0天) 和在+4°C储存5天和10天后进行分析.
主要成果:
- 的应用显著影响了菜的生长和酸盐含量. 酵母残留物 (YR) 在400mgNkg-1下产生了最大的叶子.
- 较高的N剂量通常会增加SPAD值,AS和SRAS治疗显示400毫克Nkg-1.1的最高叶绿素含量.
- 酸盐 (CN) 在400毫克N千克-1导致最高的叶子酸盐水平 (4,395毫克千克-1),超过了欧盟的安全限制,而SRAS和YR保持较低的度. 储存期间酸盐水平下降,特别是在第10天.
结论:
- 硫酸 (AS) 可能支持中等剂量的快速早期生长,而缓释硫酸 (SRAS) 则提供更平衡的生长和潜在的较低的酸盐积累.
- 酵母残留物 (YR) 显示出有机菜生产的潜力,因为它释放的气缓慢,酸盐含量始终低.
- 储存条件显著影响酸盐的减少,在+4°C下10天后观察到显著下降.
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