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Effects of Different Ratios and Application Rates of Nitrogen Forms on the Nitrate Accumulation in Lettuce

Jin Ya-zhong

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Abstract

In the experiment, the Lettuce was used as experimental material, adopted the way of substrate culture to study the effects of different ratios and application rates of Nitrogen forms supply levels on the nitrate accumulation in Lettuce. The results showed that the single output increasd, but the nitrate content actually decreased obviously when the concentration of nitrogen was 3.2mmol L and nitrate (NO3--N)to ammonium(NH4+-N)were 75∶25 and 50∶ 50.

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What this paper is about

In the experiment, the Lettuce was used as experimental material, adopted the way of substrate culture to study the effects of different ratios and application rates of Nitrogen forms supply levels on the nitrate accumulation in Lettuce. The results showed that the single output increasd, but the nitrate content actually decreased obviously when the concentration of nitrogen was 3.2mmol L and nitrate (NO3--N)to ammonium(NH4+-N)were 75∶25 and 50∶ 50.

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Available abstract

In the experiment, the Lettuce was used as experimental material, adopted the way of substrate culture to study the effects of different ratios and application rates of Nitrogen forms supply levels on the nitrate accumulation in Lettuce. The results showed that the single output increasd, but the nitrate content actually decreased obviously when the concentration of nitrogen was 3.2mmol L and nitrate (NO3--N)to ammonium(NH4+-N)were 75∶25 and 50∶ 50.

Key concepts: Nitrate, Nitrogen, Substrate (aquarium), Ammonium, Chemistry, Ammonium nitrate, Environmental chemistry, Biology

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Effects of Different Ratios and Application Rates of Nitrogen Forms on the Nitrate Accumulation in Lettuce — Research Paper | ScholarLens