条件筛选
-
What are the precautions for applying trace element fertilizers?
Precautions for applying trace element fertilizers
-
Five precautions for applying trace element fertilizers
The production of green food also imposes various restrictions on the fertilizers used. So what fertilizers are allowed? 1. Farmyard manure. Refers to fertilizers containing large amounts of biological matter, animal and plant residues, excreta, biological waste, and other substances. 1. Compost. Made from various types of straw, fallen leaves, human and livestock manure...