Over the years, I have defined the difference between the fertilizer for the lawn "Fall" and fertilizer "Winterizer". These two kinds of fertilizer really solve the root growth and hardiness of blue grass of Kentucky.
Physiologically grass produces an excessive amount of new roots in spring and autumn, when the cool temperature, soil moisture is high, and the primary nutrients for the development of the roots are easily accessible.
Kentucky bluegrass roots develop from subterranean nodes rhizomes and basal nodes aboveground shoots called crown. Roots also develop in the end nodes of rhizomes that extend above the soil in the form of escape.
The highest root growth in the fall, followed by a spring and slows down, almost stopped during the intense heat in the summer. Root growth of Kentucky Bluegrass in soil temperature peaks at 60 ° C and sharply decreases when the temperature rises above 70 ° C. The growth of roots practically stops at temperatures above 80F.
FALL fertilizer should be applied when the soil temperature begins to reach 70 degrees, until the soil temperature reaches 55 degrees mark. The present autumn fertilizer designed to create new roots for herbal plants, providing additional phosphorus (P) and potassium (K), that with the & # 39 are the main nutrients required for healthy new roots. This dose "P & K" promotes and supports the growth of new roots, so your lawn can "dig" and prepare for the cold out & # 39; I. Fall fertilizer and preparing your lawn for the root 100% Winterizer fertilizer to go through 4-5 weeks after the fall of fertilizer.
Accumulation and storage of carbohydrates in these newly formed roots – the name of the game when it comes to the next stage of nutrients that will be applied.
On the other hand, WINTERIZER fertilizer – a fertilizer that is intended to make after the herb to create new roots EMPTY and directly before the earth firmly frozen (or in the case of skating skates – one of the two fertilizer they offer. your lawn every year). It is also possible that the inclusion of fertilizers in the early seasons, wet snow or rain storms, which are always a few weeks before the first snow, which stick. So in other words, do not worry that your spray system was up and running in December, just in order to pour the water or turn zimovayzera application.
The role of the high nitrogen (1.5 – 2 pounds of active nitrogen per 1,000 square feet) is to provide the maximum amount of nitrogen which then can be converted to store, convenient carbohydrate before the soil is frozen. This application helps to feed the plant is winter in the southern regions and prepares cool grass for a long winter. Another advantage of this application – this early planting your lawn or lawn customers next spring.
To sum up, the accumulation of carbohydrates in the rhizomes peak falls on the late autumn, when the "above ground" or run of the mill growth slows Kentucky. As soon as the temperature of the spring are favorable for growth, the carbohydrate reserves again become available for the development of new shoots increments.
In fact, this application "throw your lawn to bed" and keep it safe during the long, harsh winter, which allows it to & # 39; in the spring to emerge as the champion, who will envy all your neighbors! Green with envy!