Final answer:
The three factors to be considered before applying fertilizer to crops are soil type, nutrient content, and plant growth stage.
Step-by-step explanation:
Three factors to be considered before the application of fertilizer to crops are:
- Soil type: Different crops have different soil requirements. Some crops may thrive in acidic soil, while others may need alkaline soil. It is important to understand the soil type before applying fertilizer to ensure that the nutrients will be available to the plants.
- Nutrient content: It is important to analyze the nutrient content of the soil and determine the specific nutrient needs of the crops. This will help in selecting the appropriate fertilizer with the right balance of nutrients.
- Plant growth stage: The growth stage of the crops will determine their nutrient requirements. Young plants may need different nutrients compared to mature plants. Adjusting the fertilizer according to the growth stage of the crops can promote healthy growth.