摘要
[目的]在沙质土壤中施用不同量及不同配方的复混肥，研究了城市生活污水污泥复混肥在冬小麦生长中的应用效果。[结果]与施用化肥相比，小麦冬前分蘖多30万～60万个／hm^2，株高增加2～4cm。穗粒数增加1～2个，增产457．5～1209．0kg／hm^2，增产率为7．5％～20．2％。土壤性状分析结果表明，施用复混肥对土壤中微生物的总量及主要生理群微生物数量均无不良影响，但是由于污泥中重金属在土壤中的累积及在粮食作物中的富集现象，施用复混肥应控制污泥的比例。[结论]污泥复混肥具有良好的改良土壤、增加小麦产量的作用，
[ Objective]This paper studied the application effect of sewage sludge composite fertilizer oi1 the growth of winter wheat through using different quantity in sand soil and different prescription composite fertilizer. [ Result]Compared with chemical fertilizer, winter wheat tillering number increased by 300 - 600 thousand per hm^2, the plant height increased by 2 - 4 cm. The general grain nmnber per ear increased by 1 - 2, per hm^2 yield increased by 457.5 - 1 209.0 kg and the peroentage increased 7.5 % - 20.2%. Through analyzing the soil properties, the sludge composite fertilizer for the major physiological crowd microorganism quantity and the amount of microorganism in soil did not have bad influence. But the heavy metal in sludge could be accumulated in soil and enriched in grain crop so that the proportion of sewage sludge should be controlled. [ Conclusion]Sewage sludge composite fertilizer could improve fertility of soil and increase the wheat output.
出处
《安徽农业科学》
CAS
北大核心
2009年第3期1182-1184,共3页
Journal of Anhui Agricultural Sciences
基金
唐山市科学技术研究与发展计划项目(07130204A-1)
关键词
污泥
复混肥
冬小麦
土壤
Sewage sludge
Composite fertilizer
Winter wheat
Soil
