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Fig. 5 | Chemical and Biological Technologies in Agriculture

Fig. 5

From: A slow release nitrogen fertiliser produced by simultaneous granulation and superheated steam drying of urea with brown coal

Fig. 5

Ammonium and nitrate concentration in leachates at each leaching event. The column to the far right shows the total N leached. Treatment abbreviations are: U urea, UBC-H urea-brown coal granule (17 % N), UBC-L urea-brown coal granule (8.7 % N), BC brown coal granule, control no N or C addition. Within a specified time, letters above column are different if the value is significantly different (P < 0.05)

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