NPK 13:40:13: At what stage it should be applied.

NPK 13:40:13 is a fertilizer formulation that contains nitrogen (N), phosphorus (P), and potassium (K) in specific ratios. The application of NPK 13:40:13 fertilizer depends on the specific crop and its growth stage. Here is a general guideline on when to apply NPK 13:40:13 to crops:

1. Seedling Stage:

During the initial stages of crop growth, such as the seedling stage, plants have high nutrient requirements, particularly for phosphorus. Phosphorus promotes root development and overall plant establishment. Therefore, it is recommended to apply NPK 13:40:13 fertilizer at the time of sowing or shortly after germination. This helps provide an early boost of phosphorus to support healthy seedling growth.

2. Vegetative Stage:

In the vegetative stage, when the crop is actively growing and producing leaves, both nitrogen and phosphorus are important for plant development. Nitrogen supports leaf growth, chlorophyll synthesis, and overall plant vigor. Phosphorus continues to aid in root development and also supports stem growth. At this stage, a second application of NPK 13:40:13 fertilizer can be made to provide a balanced supply of nitrogen and phosphorus.

3. Flowering and Fruit Development Stage:

As the crop enters the flowering and fruit development stage, there is an increased demand for potassium. Potassium plays a vital role in flower and fruit formation, as well as overall plant health and disease resistance. Therefore, a third application of NPK 13:40:13 fertilizer can be made during this stage to ensure an adequate supply of potassium.

It's important to note that the specific timing and frequency of fertilizer applications may vary depending on the crop, local growing conditions, soil fertility, and other factors. It is recommended to conduct a soil test to determine the nutrient requirements of the specific crop and adjust the fertilizer application accordingly. Additionally, following the manufacturer's instructions and consulting with local agricultural extension services or agronomists can provide valuable guidance on the appropriate timing and rate of NPK 13:40:13 fertilizer application for specific crops in your region.