摘要
考察了煅烧温度、煅烧时间对草木灰中各元素的有效性影响.实验结果表明:草木灰经700℃煅烧1.0h,所含的硅能够大量转化为可溶性硅,其他元素可溶性物质无明显改变,故可作为硅肥的补充剂使用;以盐酸为浸提剂实验效果最好;浸提温度对实验结果影响不明显.
The plant ash contains large amounts of silicon,phosphorus,potassium,calcium and so on.Experiments,mainly on the calcination temperature and time on the effectiveness of various elements.Calcination temperatures were chosen 590℃,700℃,900℃,calcination time were selected 0.5,1.0,1.5,2.0 h.To investigate the test results,were used citric acid,hydrochloric acid,sodium borate as the extraction solvent,extraction temperature were chosen 20℃,25℃,30℃,35℃,40℃.Test showed that the plant ash after calcination at 700℃,which contains a large number of silicon can be converted into soluble silicon,silicon can be used as supplements.Experiment showed that plant ash calcined at 700℃ 1.0h,which contains a large number of silicon can be converted into soluble silicon,silicon can be used as supplements to use.Among these,hydrochloric acid test for the best extraction solvent,extraction temperature is not obvious.
出处
《东北师大学报(自然科学版)》
CAS
CSCD
北大核心
2011年第4期154-156,共3页
Journal of Northeast Normal University(Natural Science Edition)
基金
吉林省科技发展计划项目(20090598)
关键词
草木灰
预处理
有效性
plant ash
pretreatment
soluble