Delay in the release from the sigmoid-type HCRF-S70 is due to its larger amount of water requirement to start the nutrient release as compared to the exponential type HCRF-E50.
与指数曲线形的HCRF - E50相比较，S曲线形的HCRF - S70养分释放推迟是由于养分开始释放时所需水分量较大。
Delay in the release from the sigmoid-type HCRF-S70 is due to its larger amount of water requirement to start the nutrient release as compared to the exponential type HCRF-E50.
与指数曲线形的HCRF - E50相比较，S曲线形的HCRF - S70养分释放推迟是由于养分开始释放时所需水分量较大。
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