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通过选择5个不同地区的风化煤,设置0.5%和1.0%2种使用浓度,进行玉米发芽试验。结果表明:不同地区风化煤由于质量差异较大,对玉米芽长、根长及干物重的影响不同。整体来看,以处理3(宁夏石嘴山)、处理4(山西灵石)、处理5(云南寻甸)风化煤对玉米芽长、根长及干物重的影响效果较好。说明腐植酸含量高且偏酸性的风化煤活性较好,对玉米发芽生长有较强的刺激作用,可为肥料新产品开发过程中选择相关的风化煤作为原料提供理论参考。
Corn germination tests were conducted by selecting weathered coal in 5 different areas and setting the use concentrations of 0.5% and 1.0%. The results showed that the weathered coal in different areas had different effects on the length of buds, the length of roots and the weight of dry matter. On the whole, treatment 3 (Ningxia Shizuishan), treatment 4 (Shanxi Lingshi), treatment 5 (Yunnan Xundian) weathered coal on corn bud length, root length and dry weight are better. It shows that the humic acid with high acidity and weathered coal is more active and has a strong stimulating effect on the germination and growth of corn. It can provide theoretical reference for the selection of relevant weathered coal as the raw material in the process of new product development.