Explanation of the PourThru method for large containerized crops

The PourThru method is a great procedure to determine the nutritional status of containerized crops. This Alert outlines the steps needed to perform a PourThru on larger containers for mix combination planters, herbaceous perennials, and nursery or specialty crops.

Large containers are often used to produce annual bedding plants, e.g., combination planters, tropical foliage plants, herbaceous perennials, nursery stock, and depending on the production system, sometimes specialty crops such as food crops and hemp.
Containerized crops grown in soilless substrate overtime can become susceptible to nutritional disorders.

These disorders are related to pH drift or fertility [soluble salts also referred to as electrical conductivity (EC)] because of reduced residual
limestone effect to buffer substrate pH over long crop cycles and use of controlled-release fertilizers or fertigation, respectively. The PourThru method is a quick and easy technique that allows growers to evaluate the nutritional status by determining substrate pH and EC of crops in-house without disturbing the root-zone or sacrificing plant material for nutrient analysis.

Read the complete research at www.e-gro.org.


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