effect of fertilizer 第1页

A STUDY ON APPLICATION EFFECT OF FERTILIZER IN MASSON PINE YOUNG STAND Dynamics of soil P pool in a long-term fertilizing experiment of wheat-maize rotation Ⅰ. Crop yield effect of fertilizer P and dynamics of soil total P and inorganic P SELECT OF MODEL AND RECOMMENDATION OF NITROGEN FERTILIZATION FOR RUMEX K-1 HYBRID DOCK EFFECT OF PLANT DENSITY AND FERTILIZATION ON HIGH YIELD OF MAIZE( Zea mays L.)