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本文探讨了硫磺粉、硫酸亚铁和糠醛渣三种酸性物质对石灰性褐土上小麦产量的影响。结果表明,单施酸性物质或与氮磷肥配合施用均可提高小麦产量,增产幅度可达6.2 ～12 .0 % ,其中硫酸亚铁与氮磷肥配合施用的效果最好,单施硫酸亚铁的处理次之。施用酸性物质代替部分磷肥可在一定程度上降低肥料投入。
In this paper, the effects of sulfur acid, ferrous sulfate and furfural residue on the yield of wheat on calcareous cinnamon soil were discussed. The results showed that the yield of wheat could be increased by 6.2 ~ 12.0% with the single application of acidic substances or with the application of N and P, and the ferrous sulfate and N-P fertilizers had the best effect. Ferrous sulfate alone Followed by the second. The use of acidic substances instead of part of the phosphate fertilizer can reduce the fertilizer input to a certain extent.