Factors used in classification of ; Fertilizers? Diseases? Pests?

Factors used in the classification of fertilizers may include nutrient content (such as nitrogen, phosphorus, and potassium levels), release rate (slow-release vs. quick-release), and formulation (liquid, granular, or organic).

Factors used in the classification of diseases may include the type of pathogen causing the disease (such as bacteria, fungi, viruses, or nematodes), the symptoms exhibited by the plant, the mode of transmission, and the environmental conditions that favor disease development.

Factors used in the classification of pests may include the type of pest (such as insects, mites, rodents, or weeds), the damage caused by the pest, the life cycle of the pest, and the methods of control that are effective against the pest.

Fertilizers

- Nutrient content: Nitrogen (N), phosphorus (P), potassium (K), and other macronutrients and micronutrients
- Source: Organic (derived from plants or animals) or inorganic (synthetically produced)
- Form: Liquid, granular, powder, or slow-release
- Application method: Foliar, broadcast, banded, or drip irrigation

Diseases

- Symptom: Observable signs of disease, such as leaf spots, wilting, or necrosis
- Causal agent: Pathogens, such as bacteria, fungi, viruses, or nematodes
- Host: Plant species or cultivar affected by the disease
- Environment: Conditions that favor disease development, such as temperature, moisture, or soil pH
- Disease cycle: Sequence of stages in the pathogen's life cycle

Pests

- Type: Insects, mites, nematodes, or other organisms that damage plants
- Feeding habits: Chewing, sucking, boring, or mining
- Host: Plant species or cultivar affected by the pest
- Life cycle: Stages in the pest's development, from egg to adult
- Control methods: Mechanical, chemical, biological, or cultural