Spring fertilizers: when to apply, norms

When saturating the soil only with organic fertilizing, plants may suffer from a lack of phosphorus, nitrogen or potassium. The lack of these components can lead not only to a decrease in fruit growth, but also to a deterioration in their taste and quality. Mineral fertilizers are characterized by: - ​​Nitrogen. They have excellent efficiency for any type of soil and dissolve well. Promote greater growth of green mass. You should use nitrogen for every 1 m2 of 300-350 grams. - Phosphoric. The use of this type of supplement is characterized by the activation of metabolic processes and the formation of a strong feed system. Do not combine phosphorus fertilizer with lime and ash, as the former loses its effectiveness. It is used in quantities of 1 m2 - 1-250 grams. - Potash. They contribute to increasing the resistance of plants to drought, disease, and wintering. Also, their use effectively affects the development of the root system, so the application rate increases for fruits such as potatoes, beets, carrots, etc. For every 1 m2, up to 200 grams is applied. You can buy mineral fertilizers in granules or in liquid form. Before buying, you should familiarize yourself with the composition of phosphorus, nitrogen or potassium. For inexperienced gardeners, many manufacturers indicate on the packaging the name of the crops for which it is most preferable to use one or another top dressing.

I say this in kindness ... The All New Square Foot Gardening technique emphasizes the use of good (preferably homemade) compost.  Chemical fertilizers are not part of the equation.

Hi Kay, Fertilizers are not used in SFG, just more composts when replanting.

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