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Sodium Bi-carbonate

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Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO3. It is a salt composed of a sodium cation (Na+) and a bicarbonate anion (HCO3−). Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder. It has a slightly salty, alkaline taste resembling that of washing soda (sodium carbonate). The natural mineral form is nahcolite. It is a component of the mineral natron and is found dissolved in many mineral springs

Because it has long been known and widely used, the salt has many different names such as baking soda, bread soda, cooking soda, and bicarbonate of soda and can often be found near baking powder in stores. The term baking soda is more common in the United States, while bicarbonate of soda is more common in Australia, United Kingdom and Ireland.[11] and in many northern/central European countries it is called Natron. Abbreviated colloquial forms such as sodium bicarb, bicarb soda, bicarbonate, and bicarb are common.

Although the minimum temperature for germination is 10°C, germination will be faster and less variable at a soil temperature of 16°C to 18°C. At 20°C, maize should emerge within five to six days. Yield is reduced if the temperature reaches about 32°C.

At the other extreme, frost can damage maize at all growth stages, and a frost-free period of 120 to 140 days is required to prevent damage. A yield of 3,2t/ha requires between 350mm and 450mm of rain per annum. At maturity, each plant will have used 250ℓ of water in the absence of moisture stress.