Effects of Different Ammonium and Nitrate Ratios on Lettuce Growth

From the study Effects of Different Ammonium and Nitrate Ratios on Lettuce Growth and Accumulation of Plant Nitrogen,Phosphorus and Potassium, in China vegetables, from LEI Yu-ling,CHEN Zi-yan,SONG Shi-wei*,CHEN Ri-yuan,LIU Hou-cheng,SUN Guang-wen Under hydroponic condition, it is studied the effect of different rates of ammonium : nitrate in the nitrogen application on lettuce (Lactuca sativa L.)…