Your plants require three elements for survival: sunlight, water and nutrients.
Sunlight aids in photosynthesis, and photosynthesis produces chlorophyll, the element that gives plants their color. Water carries the chlorophyll throughout the plant, and also aids in nutrient uptake. Plant roots absorb nutrients and water from the soil to help keep the plant healthy and strong.
Milorganite’s slow release nutrients are available to the plant as the plant requires it -- in adequate, but not excessive amounts.
Releasing nutrients as plants need them
Milorganite contains 5% organic nitrogen, 2% phosphorous and 4% iron.
Over 60% of the nitrogen in Milorganite is water insoluble, and is delivered to the roots via microbial activity. Microbial activity occurs when soil moisture is adequate and soil temperatures are between the 55-85⁰F range. When these conditions are favorable, the microbes break down the Milorganite granule into a plant available form and the nutrients are then taken up by the roots. When conditions are not favorable, Milorganite’s nutrients stay in the soil until conditions are right for root uptake.
The advantage to applying slow release nutrients, like those in Milorganite, is that the nutrients are available to the plant gradually over an extended period of time. Milorganite’s nutrients feed the soil on a constant basis, up to 10 weeks, which means fewer applications. This extended feeding provides more uniform growth, a deeper and better established root system, and in the case of your lawn, a thicker turf stand that is better able to fight off weeds.
The benefits don’t stop there. Milorganite is very low in salts; unlike synthetic fertilizers, Milorganite‘s nitrogen will not burn your plants and can be applied any time during the growing season. Also because the nutrients release as the plant needs it, the nutrients are less likely to leach into waterways, which is better for the environment.