一种稻田红萍高效固氮种养方法
By using a symbiotic system of paddy field red duckweed and anemones to replace part of the chemical nitrogen fertilizer and construct a tiered planting and breeding system, the problem of nitrogen fertilizer dependence in double-cropping rice production has been solved, achieving efficient nitrogen utilization and soil improvement, and reducing production costs and environmental pollution.
CN122397579APending Publication Date: 2026-07-17INST OF SOIL & FERTILIZER FUJIAN ACADEMY OF AGRI SCI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INST OF SOIL & FERTILIZER FUJIAN ACADEMY OF AGRI SCI
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
Abstract
本发明公开了一种稻田红萍高效固氮种养方法，属于农业种植技术领域，在完全保留农户原有种植习惯、不增加任何额外劳动投入的前提下，实现了氮肥用量的精准大幅削减与氮素利用效率的显著提升，方案将基肥尿素用量从常规水平精准下调，减量幅度达50%，不足部分由卡州萍与鱼腥藻共生形成的高效生物固氮体系自然补充，其固氮量可完全匹配水稻全生育期的氮素需求，相较于盲目减氮导致的减产风险，本方案通过红萍自然腐解释氮与水稻分蘖、拔节、孕穗等关键需氮期的时空耦合，将氮素当季利用率提升，同时减少氨挥发损失，从源头上降低了农业生产成本。
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