Dave Neal, CEO of Dyna-Gro talks about Silicon and it's importance in plant nutrition. скачать в хорошем качестве

Dave Neal, CEO of Dyna-Gro talks about Silicon and it's importance in plant nutrition.

How important is Silicon to pants? Here is a brief list of many of the benefits of silicon: Silicon improves growth rates, accelerating root development on cuttings. Promotes natural fungal defense mechanisms in plants, significantly reducing or eliminating entirely, the need to use fungicides. Silicon increases relief from environmental stresses: cold, heat, drought, salinity, mineral toxicity or deficiency. When applied with a fungicide, silicon substantially improves the efficacy of the fungicide. Silicon, deposited in epidermal cell walls, enhances plants’ resistance to insects by forming a mechanical barrier to many feeding insects. The increased intracellular content of silicic acid also acts as an effective sap sucking inhibitor for many insects. Resulting increased mechanical strength in epidermal cell walls enhances leaf presentation to light and improves stem strength. Foliar application of silicon to the new growth Pro-TeKts tender new leaves. Foliar sprays of soluble silicon have also been shown to be effective for the control of aphids and other sucking insects on many plants. Cuttings and plugs are more tolerant of the stresses encountered during root formation and potting up as a result of decreased transpiration when silicon is used. Studies at the Universities of Florida and Minnesota have shown significantly increased success rates in propagation of cuttings when silicon is applied foliarly through a misting system, as a soak prior to sticking or as a drench. The surfactant characteristics of Silicon result in increased uptake of water and minerals for nutrition and growth. Silicon use results in higher concentrations of chlorophyll per unit area of leaf tissue. Silicon produces higher concentrations of the enzyme RUBP carboxylase in leaf tissue. It also regulates the metabolism of carbon dioxide making more efficient use of available levels of CO2. Silicon deficiencies often are indicated by the malformation of young leaves and a failure of pollination and fruit formation in many cases. Uptake of silicon results in delayed leaf and flower senescence. Shelf life of plugs, cut flowers and specialty pot crops is extended with silicon use. Leaves are thicker and darker green compared to those grown without soluble silicon. Silicon enhances metabolic functions and plant growth rates by balancing nutrient uptake, distribution and transport, and increasing chlorophyll concentration in leaves. Improved pollen fertility, fruit and flower count. Silicon, is selectively transported to the site of fungal infection, plays an active metabolic role in combating fungal growth by the production of polyphenolic compounds, part of a plant's natural defenses against fungi and insects. Silicon is rapidly bound in leaf tissue and deposited in a non-translocatable form within 24 hours of uptake.