The establishment and subsequent maintenance of a quality turf grass requires not only the availability of essential elements, but also their right amounts and time of application. Three very important reasons are enumerated which make availability of essential elements to grasses indispensable.
1. Turf grasses are regularly subjected to pressures brought about by machineries, density of people, and others.
2. Turf grasses are regularly cut at least twice a week.
3. The growing medium particularly the rootzone mix, is made up of materials with very low cation exchange (CEC) and high infiltration rate.
In golf courses, for turf grass greens to withstand the rigors of daily stomping by players and caddies, adequate amounts and timely application of essential elements must be made to support normal growth and development. Grass surfaces that are played regularly and heavily are predisposed to disease infection, especially if they lack proper nourishment.
A better understanding of the important reasons and circumstances that make nutrition management of the golf courses, parks and house lawns are very indispensable. Considering the tremendous amount of nutrient losses through erosion, leaching and mowing, it is quite complicated to find out what nutrient elements must be added to the soil, in what forms, what amounts and what frequencies. Of course, one can always refer to published literatures and/or get advice from major practitioners. More often than not, the answers to these questions would be interim or tentative in nature, in as much as the nutritional requirement of the turf grasses will be unique based on the prevailing physical and biological conditions of the locality. For accuracy and appropriateness in the long term, however, the nutritional requirements of the turf and all plants, for that matter, must be established following standard procedures.
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