WHAT ARE SILICATES?
A silicate is a compound containing an ion in which one or more central silicon atoms are surrounded by electronegative ligands. This definition is broad enough to include species such as hexafluorosilicate (“fluorosilicate”), [SiF6]2−, but the silicate species that are encountered most often consist of silicon with oxygen as the ligand. Silicate anions, with a negative net electrical charge, must have that charge balanced by other cations to make an electrically neutral compound.
Silica, or silicon dioxide, SiO2, is sometimes considered a silicate, although it is the special case with no negative charge and no need for counter-ions. Silica is found in nature as the mineral quartz, and its polymorphs.
Silica as Plant Nutrient:
Silicates make the cell walls of the plants thicker and stronger while also increasing the size of the vascular system of the plant. The thicker cell walls translate to the plant being stronger in all aspects, while the enlarged vascular system can take up more water and nutrients resulting in a bigger, healthier, higher yielding plant! The larger the plant’s vascular system, the more potential the plant has for maximum yield.
Mostly silica is deposited on leaves and stems of plants, and some effects are through interaction between silicic acid and other elements such as Al. In contrast to essential elements, the function of Silica in plants is probably mechanical rather than physiological. This characteristic of Silica function explains why Si effects are easily observed in plants that accumulate Silica to a certain extent and why Si effects are more obvious under biotic or abiotic stress. With the changes occurring in the global environment, the role of Silica will become more and more important for better and sustainable production of crop.
Targets of a suitable Silica fertilizer:
Higher content of soluble Silica
Silica is the second most abundant element in the earth’s crust. It is always combined with other elements and many of these sources are insoluble. Responses of crops to soluble Silica applications in sands (largely SiO2) provide an example of the insolubility of the sandy soils. Although basic slags (by-products) from the processing of iron and alloy industries, have been used, their concentrations and solubility of Silica and the contents of other elements and their bondage vary widely. Potassium silicate is used in nutriculture for disease control in some high value crops but are too costly for general use.
Sodium silicate and silica gel have also been used to supply Silica in research and high value crops. Calcium silicates have emerged as the most important sources for soil applications. Of those, calcium meta-silicate (wollasonite, CaSi03) has been the most effective source in many locations with low concentrations of soluble Silica in soils. Such a material, supplied as a slag by-product from the high temperature electric furnace production of elemental P is applied extensively to organic and sandy soils for application for sugarcane and rice crops as well as utilization on turf.
Green Si Sol B Contains:
Powder for soil application :
Silicate based Bacillus spp.
Liquid for foliar spray :
Liquid Silicon and Bacillus spp.
TARGET CROPS: Cereals, Pulses, Oils seeds, Flowers, Spices, Condiments, Orchards, Filed crops etc.
Soil Application at Root Zone at the time of land :
Cereals, Pulses, Oils seeds, Flowers, Vegetables, Filed crops : 5 Kg/ Acre
Orchard Tress : 25-50g/ tree
Sugarcane : 5-10 Kg/ Acre
Spices, Condiments, Foliar Application : 5-10 Kg/ Acre
Cereals, Pulses, Oils seeds, Flowers, Vegetables, Filed crops : 100 ml/ Acre
Orchard Tress : 5 ml/ tree
Sugarcane : 100-200 ml/ Acre
Spices, Condiments : 100-200 ml/ Acre