Balance of chemical fertilizer consumption
decreasing fertilizer consumption
N fertilizer consumption per unit crop yield
P fertilizer consumption
potassium fertilizer consumption
application of organic fertilizer combined with chemical fertilizer
Different ratio of cake fertilizer and inorganic fertilizer
Nitrogen fertilizer combined with potassium fertilizer
organic fertilizer and chemical fertilizer
organic fertilizer plus inorganic fertilizer
(Mn+Zn)-LS trace fertilizer
(organic-inorganic) complex fertilizer
~(15)N labelled fertilizer
~(15)N labelled nitrogen fertilizer
~(15)N-labelled fertilizer
~(15)N-rape cake fertilizer