SOIL MOISTURE
Moisture plays a critical role in POLYON nutrient release. Here is how moisture impacts the release rate:
HERE’S HOW IT IMPACTS
WATER PENETRATION For POLYON to release nutrients, moisture (usually from rain or irrigation) must penetrate the polymer coating surrounding the fertilizer substate. Water gradually seeps through the coating, dissolving the nutrients inside the granule. NUTRIENT DISSOLUTION Once moisture permeates the POLYON coating, it dissolves the fertilizer substrate contained within the POLYON coating. The dissolved substrate forms a nutrient solution inside the POLYON coating.
DIFFUSION OF NUTRIENTS After the fertilizer substrate is dissolved, the nutrient solution begins to move across the POLYON coating into the surrounding soil via osmotic diffusion. Moisture enables this diffusion by helping carry the dissolved nutrients out of the granule at a controlled rate. SOIL MOISTURE CONTENT Excessive soil moisture does not impact POLYON nutrient release. If soil moisture is above the minimum level to facilitate nutrient release, additional soil moisture will not impact nutrient release speed.
In summary, moisture is essential for initiating and sustaining the nutrient release from POLYON.
POLYON Release Factors Effect of Moisture
H 2 O
+ Soil moisture is required for release + Rainfall or irrigation is recommended following application. + Excessive soil moisture does not affect nutrient release rate.
N
N
N
N N N
N
N N
H 2 O
N
N N N N N
N
N
N
N
N
N
N
N
N
N N N
N
N N
N
N
N
N
UREA
N N
N
Polymer
N
N N
N
N N N N
N
N
N
N
N
N N N N
N N N
N
N N
N
N
N
N
N
N N
N
N
N N N
N
N N
N
N N
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