Even when your soil is fertile, there may be times during the growing period when your crops need a little boost with the addition of a water soluble fertilizer for vegetables. There are many options of liquid fertilizer, even organic and DIY liquid fertilizer for vegetables.
Below we’ll teach you the pros and cons of liquid vegetable fertilizer, how to tell if you need it, how you apply it, and how to make your own at home.
Both liquid and granular fertilizers have similar nutrient amounts, but there are differences between the two.
Nutrients, especially phosphorus, are more mobile in a water solution and can get to plant roots more easily. Granular fertilizer can be too strong or “hot,” containing heavier bands of nitrogen or potassium which can damage plants.
Granular fertilizer has differing amounts of nutrients in each grain, whereas liquid fertilizer contains an identical amount in each drop. Using a liquid fertilizer ensures that each plant is getting fed the same amount of nutrients at each application.
Granular fertilizers are often less expensive when bought in bulk and easier to store than liquid. However the uniformity of application with a liquid food is a plus. Liquid fertilizers are also the recommended food for tender starter plants, again owing to their consistent even coverage.
Liquid fertilizers do not store as well as granular. They tend to settle or “salt out” in cold weather. Granular foods are also available in slow-release forms which may be more suitable for some plants.
Whether or not to fertilize depends on a number of factors. If the plant is in an active growing or production phase, if it is naturally a heavy feeder, and if the soil is nutrient-deficient are all considerations when deciding if you
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