施用腐植酸肥料对洋葱产量和品质的影响

目的]施用腐植酸肥料对洋葱产量和品质的影响.方法]试验采用随机区组对比试验,小区面积48 m2,每个处理3个重复,追肥采用4个不同生长时期条施或撒施后浇水.结果]与对照相比,腐植酸肥料可平均增产13.2;,最高达到24.9;.在品质方面,与对照相比,腐植酸肥料可平均提高总糖6.7;,最高可达11.6;,同时降低洋葱硝酸盐含量64;～100;.结论](1)腐植酸对土壤具有改良作用.(2)腐植酸具有提高肥效作用.(3)腐植酸对于作物根系有刺激作用.(4)腐植酸肥料对洋葱施用具有提高品质和增产效果.

The Impact of Humic Acid Fertilizer on Yield and Quality of Onion

【Objective】Influence of humic acid Fertilizer on yield and quality of onion was researched through the field test.【Method】Random comparing test was used between areas and groups,the area was 48 square meters,each treatment was repeated three times,topdressed treatments were conducted in four different growing stage,using row application or broadcast application,then watered.【Result】Comparing with CK,humic acid fertilizer was able to increase the production by 13.2 % in average;the highest could reach 24.9%.For quality,humic acid fertilizer could enhance total sugar by 6.7 % in average,the highest could reach 11.6%,onion nitrate content was decreased by 64% to 100%.【Conclusion】(1)Humic acid could better the soil.(2)Humic acid had the effect of raising the fertilizer efficiency.(3)The root of crops were stimulated well by humic acid.(4)Humic acid fertilizer could enhance the quality and productivity of onion.