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• Soil improvement
• Soilless horticulture
• Ingredient for mixtures and soils for cultures
• Improvement and drainage of lawns
• Soil coverage
• Green Roofs
Especially in hot climate areas loss of water increases due to high evaporation at surface-irrigated agricultural-green areas and greenhouses. In the countries with limited water resources pumice usage is increasing for the purpose of minimizing water consumption, increasing the efficiency of consumption, minimizing the amount of alcali which is increasing as a result of evaporation especially in calcareous water. The upper layer of soil (depending on the type of plant) is taking off in a certain depth a drainage layer is formed under the soil by spreading and padding the pumice and re-covering the soil. In this application which the irrigation can be made directly through pipes through this layer, soil takes the necessary water inside from the pumice layer and it reaches the plant roots in this way. By the irrigation which is done in this way evaporation of irrigation is minimizes, consumption of water is decreased and in addition to that irrigation can be done at any time of day. Israel, Saudi Arabia, Dubai, Qatar and countries like that which has limited water resources and fertile lands can be shown as the best practice examples.

The roots of plants are living organisms requiring a continual supply of oxygen, the introduction of air into the soil even though it is wet is very important. Likewise, roots are constantly releasing carbon dioxide, (via respiration), which must be removed from the root zone. Plants require that these gases be supplied or exhausted via soilpores. Thus, a good soil must be porous to permit the exchange of gases while also adequately retaining water to meet the needs of the plant. Additionally, the plant must obtain more than a dozen elements from the soil for its growth.

Clay or dense soils are so compacted that their structure does not allow outside nutrients and moisture to penetrate to plant roots, thus, leaving the plant deficient. Pumice has excellent drainage characteristics similar to coarse sand. It is most important that soil has a relatively high air space after drainage. Pumice compares very favorably with organic amendments in this respect. Clays are notably low in this property. Leaching of excess soluble salts is no problem with adequate pumice incorporated, when it becomes necessary. Where bark or other wood residuals are employed, it is always desirable to fumigate or steam in order to avoid possible pathogen introduction.

Pumice stone is perfectly suitable for soilless cultivations of tomato, cucumber, pepper, rose, gerbera, gypsophila, carnation, chrysanthemum and other vegetables and flowers. For all these reasons, pumice stone has become a very interesting substrate for hydroponic cultures in most countries.

Extensive research has shown that foliage plants thrive in an organic type soil which has high aeration and retains moisture well. A mixture of one part pumice to one part leoanrdite by volume will grow luxurious plants if properly fertilized. Flowering pot plants will grow well in a mix containing one part pumice, one part leoanrdite, and two parts bark by volume. Starting annuals in flats or pots can be accomplished with success by using the mixture for flowering pot plants.

In establishing new lawns, it is used in preparing the seed bed, incorporated in the soil and also for mulching the seed. Pumice will have no objectionable odor as steer manure has. It will not compete for the nitrogen in the soil as the organic materials, (such as sawdust) when they breakdown. In established turf, it can be used as a top dressing after aerification, especially on golf greens. The heavy traffic and use of machinery causes compaction, the destruction of pore spaces in the soil. Aerification and use of pumice (which does not decompose or pack) will restore the soil structure and make possible better root growth.

Pumice is an effective mulch in shrub and flower beds. It is a type of mulch that has aesthetic as well as practical value in gardening. The soil beneath the mulch stays moist for a longer period and does not compact due to overhead watering.Pumice will not breakdown so there is never a replacement problem. A mulch 5 to 6 cm thick effectively minimizes weed problems. As a mulch it is also an ideal insulator, it will prevent temperature rise in the root zone, making it possible for continual growth activity even under extremely high temperature conditions, it has been successfully used in Palm Springs to maintain lawns throughout the summer in excellent condition.

A Green Rooftop consists in all or part of the surface area of a rooftop or a balcony that has been planted with vegetation in order to upgrade the environment or, to be more exact

• Increase green spaces in urban environments,
• Reduce the effects of the "urban heat island" effect (UHI),
• Reduce noise pollution,
• Manage rainwater,
• Increase buildings' energy efficiency and Cut down on energy consumption.

A green rooftop is a special multi-layer system consisting of a growing medium, an irrigation system and vegetation. Green rooftops are also known as living roofs and roof gardens

• Excellent aeration
• Good drainage
• Neutral PH
• Does not break down, (can be used over and over again).
• Does not rot
• No shrinking or compacting in aging
• Easy to control nutrients
• Not a host to fungi, nematodes, insects, etc.
• Easily leached
• No offensive odors

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