Unverified80% confidenceTradeoffTime unknown
缓释期越长的液体肥往往包膜越厚，短期速效性越差；急救黄叶、缺素症状应选普通速效液肥，缓释肥仅适合日常稳定供肥
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified缓释肥不能完全替代速效肥：缓释肥养分释放平缓，植物急需追肥（如花期爆发）时应配合水溶肥使用，单靠缓释肥难以满足高需求期81% similarUnverified颗粒越小保水保肥能力越强但透气性越差、越易板结，育苗后期需及时移栽；大颗粒透气好但需增加浇水频率77% similarUnverified缓释周期越长释放越平稳越省心，但单价越高且无法灵活调整；周期越短越可控但需频繁施用。多肉、兰花等对肥料敏感的植物宁可选短周期低浓度，避免长效肥持续释放导致烧根76% similarUnverified综合成本上，液体缓释肥单价高于普通液肥，但施用频次可从每周降至每2-4周；若养护植株少于5盆且愿意每周浇水，普通液肥更经济76% similarUnverified颗粒越细保水锁肥能力越好但越易板结压实，颗粒越粗透气越好但保水弱；育苗选细、通用混配选中，各有取舍75% similar
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