Introduction to organic fertilizer
Generalized
In a broad sense, organic fertilizer refers to farm fertilizer, including various animal and plant residues or metabolites, such as human excreta and straw, as well as cake fertilizer, which can effectively improve the physical and chemical properties of soil
Narrow sense
In a narrow sense, organic fertilizer refers to all kinds of animal wastes and plant residues, which are processed to eliminate harmful substances and reach the harmless standard
Classification of organic fertilizer
Organic fertilizer can be divided into agricultural waste, livestock manure, industrial waste, domestic waste, urban sludge, modern physics and chemistry, etc
Organic fertilizer action
First, organic fertilizer can improve soil and fertility, and create good soil conditions for plant growth
Second, organic fertilizer can increase crop yield and improve the quality of agricultural products
Third, organic fertilizer can improve the utilization rate of fertilizer
Precautions for use of organic fertilizer
If the organic fertilizer is applied too deeply, it will affect the biological activity
Second, bio organic fertilizer should be applied alone
Third, the hole application of bio organic fertilizer can make the seedlings absorb nutrition faster, activate the soil and better promote the rapid growth and development of plant roots< span>