复混肥添加剂对养分释放的影响  

Compound Additives on The Impact of Nutrient Release

作　　者：丁洪[1,2] 张玉树[2] 张竟竟[1] 

机构地区：[1]商丘师范学院环境与规划系,河南商丘476000 [2]福建省农业科学院土壤肥料研究所,福建福州350013

出　　处：《现代农业科学》2009年第6期71-72,共2页

基　　金：福建省发改委产业技术研究开发研究项目(2003-170);福建省科技厅重点科技项目(99-Z-98);福建省农科院创新团队建设财政专项(STIF-Y016)

摘　　要：实验研究了复混肥添加剂对肥料养分释放的影响。结果表明,在复混肥中添加木质素、风化煤、硼砂等添加剂能显著地降低肥料养分在土壤中的释放速率,并且以3种添加剂复配添加效果最好。与未加添加剂的相比,肥料与土壤混匀后培养17 d,期间氮释放速率能降低0.3%～5.7%,磷释放速率降低0.3%～5.3%,钾释放速率降低0%～8.1%。由此可见,在复混肥中添加添加剂具有显著的缓释效应,能减少肥料流失,提高养分利用率。Experimental study of the compound additives on the release of fertilizer nutrients was introduced in this paper. The resuits showed that the lignin in the compound added to weathered coal, borax and other additives can significantly reduce the fertilizer nutrients in the soil of the release rate, and three kinds of additives in order to add the best mixed. The nutrients which was not add the additives compared to mixing fertilizer and soil cultivation after 17 d, during the nitrogen release rate can be reduced by 0.3% - 5.7%, phosphorus release rate reduced by 0.3% - 5.3%, potassium release rate reduced from 0% to 8.1%. This shows that the compound added in a significant additive effect of sustained - release, can reduce the loss of fertilizer and improve nutrient utilization.

关 键 词：复混肥料 添加剂 养分释放 

分 类 号：S143[农业科学—肥料学]