TIAN Shugang,HE Shan,SHI Jia,et al.Effects of Applying Enhanced Phosphate Fertilizer on Yield Formation and Application Effect of Rice in Cold Regions[J].HEILONGJIANG AGRICULTURAL SCIENCES,2026,(03):1-6.[doi:10.11942/j.issn1002-2767.2026.03.0001]
施用增效磷肥对寒地水稻产量形成及应用效果的影响
- Title:
- Effects of Applying Enhanced Phosphate Fertilizer on Yield Formation and Application Effect of Rice in Cold Regions
- 文章编号:
- 1
- Keywords:
- enhanced phosphate fertilizer; cold region; rice; yield; benefit
- 文献标志码:
- A
- 摘要:
- 为明确低含量增效磷肥替代常规64%磷酸二铵的优化配方，提高肥料利用效率，应用含核心母粒二铵53%（N-P2O5=14-39）的掺混肥，探究该掺混肥对寒地水稻叶绿素含量、干物质积累与分配、产量及产量构成的影响，并对其产生的效益进行分析。以配制的常规掺混肥48%（28-10-10）作为对照（CK），另设置3个试验处理，分别为含核心母粒二铵53%配制的掺混肥48%（28-10-10）（CF1）、掺混肥48%（26-10-12）（CF2）和掺混肥48%（28-8-12）（CF3）。结果表明，与CK相比，CF1、CF2和CF3处理的水稻产量分别显著增加10.97%、23.73%和14.52%，CF2的增幅最高，显著高于CF1和CF3；CF2和CF3处理的每穗粒数分别显著增加20.52%和14.75%，CF2的千粒重显著增加3.26%，而3个处理的结实率则均显著降低；CF2处理灌浆期的总干物质量显著增加14.61%，成熟期的茎质量、叶质量、穗质量和总干物质量分别显著增加23.5%、32.92%、33.15%和30.15%；CF2处理灌浆期的叶片SPAD值显著提高4.77%，CF2和CF3处理成熟期的叶片SPAD值分别显著提高14.02%和10.10%；CF1、CF2和CF3处理的水稻氮肥偏生产力分别显著提高15.33%、28.00%和19.02%；CF2处理的效益增加5 421.03元·hm-2，增幅最高。综上所述，施用含核心母粒二铵53%配制的掺混肥48%（26-10-12）可以促进水稻生长，增加每穗粒数和千粒重，进而提高产量，增加种植效益。
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备注/Memo
收稿日期：2025-12-16