一种生物有机无机复合肥的养分释放规律研究  

Nutrient Release Law of One Biological-organic-inorganic Compound Fertilizer

作　　者：张辉[1] 李维炯[2] 倪永珍[2] 

机构地区：[1]天津师范大学城市与环境科学学院,天津300074 [2]中国农业大学资源与环境学院,北京100094

出　　处：《农业环境科学学报》2005年第6期1123-1126,共4页Journal of Agro-Environment Science

基　　金：黄淮海平原曲周试区"十五"攻关课题--"黄淮海平原高产区优质;高效农业结构模式与技术研究"项目(96220910D)

摘　　要：通过好气培养间歇淋洗法比较了生物有机无机复合肥和普通无机化肥复合肥养分释放的不同,模拟了生物有机无机复合肥的养分释放规律。结果表明,在20周内生物有机无机复合肥氮的淋洗总量占加入量的37.92%,磷淋洗量占加入量的19.14%,钾基本上全部淋洗出来,养分释放平稳持久。不同肥料的大田试验结果表明,不同生育期生物有机无机复合肥处理的土壤速效养分含量均高于其他处理,满足作物的养分需求;生物有机无机复合肥可促进花椰菜生长发育,显著提高产量。The characteristics of nutrient release.from a biological-organic-inorganic compound fertilizer and a chemical compound fertilizer were compared, and the process of nutrient release from the biological-organic-inorganic compound fertilizer was simulated by applying the aerobic culture and intermittent leaching method. The results of the simulation experiment showed that 37.92% and 19.14% of the total N and P of the fertilizers were leached respectively, and almost all the K was leached in twenty weeks. The nutrients of the biological-organic-inorganic compound fertilizer released steadily and permanently. The results of field experiments showed that in different soils added with biological-organic-inorganic compound fertilizer, the contents of available nutrients were all higher than those with other kinds of fertilizers at different stages. The biological-organic-inorganic compound fertilizer could sufficiently supply the cauliflower with available nutrients, promote crop growth, and increase the yield significantly.

关 键 词：生物有机无机复合肥 养分释放 速效养分 

分 类 号：S144.1[农业科学—肥料学]