What types of fertilizers are permitted for use on pear trees?

① Farmyard fertilizers: including compost, waterlogged compost, barnyard manure, biogas fertilizer, green manure, crop straw fertilizer, mud fertilizer, cake fertilizer, etc.

② Commercial fertilizers: including commercial organic fertilizer, humic acid fertilizers, microbial fertilizers, organic compound fertilizers, inorganic (mineral) fertilizers, foliar fertilizers, organic-inorganic fertilizers, etc.

③ Other fertilizers: fertilizers made from organic materials such as non-toxic food products, fish residues, cattle and sheep wool waste, bone meal, amino acid residues, bone glue waste residues, poultry and livestock processing waste, sugar factory waste, etc., which are registered with the agricultural department and permitted for use.