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小苏打,即碳酸氢钠,它与碳酸氢钾、氢氧化钙和碳酸钠一样,都属于弱碱性物质,是重要的化工原料,它在农业上可用作防治作物病害和饲料添加剂。防治作物病害小苏打水溶液的酸碱度在8.3左右,在这种弱碱性环境中,它能抑制病菌分生抱子的发芽和形成,使之失去侵染能力,作物的许多真菌难以生存。它用于防治黄瓜炭疽病、白粉病、豇豆煤霉病防效可达90%以上,对大棚蔬菜的病害防治效果更好。对水稻叶斑病防治效果为60～70%,对甜瓜和柑桔等
Sodium bicarbonate, like sodium bicarbonate, calcium hydroxide and sodium carbonate, is a weakly alkaline substance and is an important chemical raw material that is used in agriculture as a crop disease control and feed additive. The pH value of aqueous solution of sodium bicarbonate for controlling crop diseases is about 8.3. In this weak alkaline environment, it can inhibit the sprouting and formation of spore-forming spores of pathogens, thus losing the ability to infiltrate. Many fungi of crops are hard to survive. It is used to control cucumber anthracnose, powdery mildew, cowpea coal mold control effect of up to 90%, better control of greenhouse vegetable disease. The control effect on leaf spot is 60 ~ 70%, for melon and citrus