论文部分内容阅读
草木灰我国农村施用历史悠久,根据粗略估计,我国每年燃烧植物的灰量在2,000吨以上,若平均以含氧化钾5%计,折合生产氧化钾100万吨或相当硫酸钾200万吨,是钾肥的主要来源之一。各种作物秸秆、杂草、枯枝落叶以及木材燃烧后的残灰,统称草木灰。由于燃烧的原料不同,其灰分中营养含量相差很大。草木灰中一般
Ash has a long history of application in rural areas in our country. According to a rough estimation, the annual burning ash content of plants in our country is over 2,000 tons. If the average amount of potassium oxide is 5%, equivalent to 1 million tons of potassium oxide or 2 million tons of potassium sulfate, One of the main sources. A variety of crop stalks, weeds, litter and residue after burning wood ash, collectively referred to ash. Due to the different raw materials of combustion, the nutrient content of ash varies greatly. Ash in the grass in general