Final answer:
Fertilizer application frequency depends on plant nutrient requirements. Options range from 1 to 5 applications per year.
Step-by-step explanation:
Fertilizers are materials applied to soil or plant tissues to supply essential nutrients for plant growth. There are different options for the number of fertilizer applications per year, ranging from 1 to 5 applications. The optimal number of applications depends on the specific plants and the nutrients they require.
Option 1: 2-3 applications per year - This option suggests applying fertilizer 2-3 times throughout the year. It is suitable for plants that have moderate nutrient requirements.
Option 2: 4-5 applications per year - This option recommends more frequent applications, 4-5 times per year. It may be necessary for plants with high nutrient demands or fast growth rates.
Option 3: 1 application per year - This option suggests applying fertilizer only once a year. It would be suitable for plants with low nutrient requirements or in nutrient-rich soils.
Option 4: No need for fertilizer on other plants - This option indicates that some plants may not require any additional fertilizer, as they can obtain necessary nutrients from the soil naturally.