...网站] 关键词 控释肥料，养分释放模式，养分利用率， 增产效应， 环境保护 [gap=2579]Key words：Controlled-release fertilizers (CRFs); Nutrient release patterns; Nutrient use efficiency; Agricultural production in..
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关键词:一品红;施肥;硬水;控释肥 [gap=918]Key words: Poinsettia; Fertilization; Hard water; Controlled-release fertilizer
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The relationship between vapor pressure difference and rate of nutrient release from film coated controlled release fertilizer was discussed.
研究了水蒸气压差与包膜型控释肥料养分释放速率的关系。
The result showed: Among all examined fertilizers, the nutrient release rate of urea was the highest and that of controlled release nitrogen fertilizer was the lowest.
研究结果表明：控释氮肥养分释放速率最低、肥效最长，与尿素相比可改善运动场草坪的外观品质；
However, the application of controlled release fertilizer is limited by its high cost and environmental pollution brought from membrane materials of synthesized polymer with low degradation.
但是现有控制释放氮肥因大多成本过高并且控制释放膜使用的膜材料多为难降解的合成高分子材料而限制了其大规模应用。
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