混合控制释放化肥增加了米的化后积,转移和使用效率
Manman Yuan1, Gang Wu1, Jiabao Wang1
1Key Laboratory of Nutrient Cycling, Resources and Environment of Anhui, Institute of Soil and Fertilizer, Anhui Academy of Agricultural Sciences, Hefei, China.
Frontiers in plant science
|May 14, 2024
概括
混合控制释放化肥 (CRN) 的一次性应用可以提高大米产量和使用效率 (NUE). 与传统的尿素应用相比,这种方法还降低了劳动力成本,增加了经济收益.
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:
- 在大米种植中使用顶级化肥带来了挑战和高成本.
- 控制释放肥 (CRN) 为高效的管理提供了一个潜在的解决方案.
- 混合CRN对大米产量,动态和经济可行性的影响需要进一步调查.
研究的目的:
- 为了评估一次性混合CRN应用与常规尿素应用对大米的影响.
- 评估混合CRN对干物质,积,转位,产量和利用效率 (NUE) 的影响.
- 为了确定在米种植中使用混合CRN的经济效益.
主要方法:
- 实地实验是在中国长江三角洲的三个地点进行的.
- 混合CRN和常规尿素被应用在不同的速度 (0240公斤N ha-1).
- 测量了水产量,干物质,积和转移以及NUE.
主要成果:
- 与常规尿素相比,混合CRN显著增加了大米产量 (0.96.9%),主要是通过增加尖端子数量.
- 用混合CRN观察到200公斤N ha-1的最佳产量,达到45.9%的NUE.
- 混合CRN增强了前解转位,增加了对谷物的贡献,并将NUE提高了3.228.4%.
结论:
- 混合CRN在≤200公斤N ha-1一次性应用可以提高大米产量,NUE和经济利.
- 混合CRN将劳动力成本降低约1800元/ha,并提高经济收益 (21.568.8%).
- 这种方法为大米种植提供了更有效和更具成本效益的管理策略.
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