After the crops are harvested, a large amount of straw is stacked in the fields. In South Africa, the most straightforward way for people to deal with these straws is to burn them, but burning straws bring great harm. For example, some cities have severe haze caused by burning straw, which has a great impact on people’s health and environment. In the recent years, the silage baler for sale in South Africa is a hot sale product, for the awareness of environmental protection has been improving.
那么，焚烧稻草的危害有哪些？
危害人体健康
焚烧稻草对|人类健康|有害。农作物稻草含有氮、磷、钾、碳氢化合物和有机硫。尤其是，当|稻草|尚未干燥时，部分未完全燃烧会产生大量有害物质。
它还可能产生二次污染物，如臭氧。其次，焚烧稻草时，如果|可吸入颗粒物|的浓度达到一定水平，会伤害|人们的眼睛、鼻子和喉咙。更糟糕的是，可能引起咳嗽、胸闷和流泪。
减少土壤肥力，土地变得贫瘠
稻草中大部分的氮、硫等元素转化为挥发性物质或颗粒进入大气。只有一些如钾等物质留在土壤中，养分元素严重流失，不利于土壤肥力。
确定每次焚烧稻草会使土壤有机质降低0.2到0.3个百分点。如果这些土壤有机质是通过还田稻草产生的，通常需要连续5到10年。
研究表明，焚烧后土壤中的细菌和真菌数量分别减少了85.95%、78.58%和87.28%。
在南非应广泛使用青贮打包机
In summary, the harm caused by straw combustion is extremely great. After reading this article, I believe that everyone has a preliminary understanding about it. I hope people in South Africa can improve their awareness and widely use 青贮打包机 to reduce the harm of burning straw.