复混肥中聚谷氨酸（γ-PGA）稳定性及其对肥料物理性质的影响

摘要

Used theγ-PGA preparation(solid containingγ-PGA 8%, liquid containingγ-PGA 3.5%)to add, with disk granulation and blending the parcellto produce different combination γ- PGA concentrations of compound fertilizer. Analysis the content ofγ-PGA in the fertilizer and its physical properties respectively, under the condition that the fertiliz-er production of the next day and stored for 30 days, 90 days, 180 days .Also, discusses the stability of the compound fertil-izer of γ-PGA. Experimental results show that the content ofγ-PGA is relatively stable of most of the processing in the four different times, On the other hand, differentγ-PGA of detection rate of machining process but there is a big differ-ence, and also have certain influence to the physics properties of fertilizer.The study will provide fertilizer added γ-PGA synergistic agent production and processing technology to lay the theoretical foundation.%应用γ-PGA制剂（固体含γ-PGA8%，液体含γ-PGA3.5%），以圆盘造粒、掺混包裹两种结合方式生产不同γ-PGA浓度的复混肥，在肥料生产当日及存放30天，90天，180天分别测定肥料中γ-PGA含量及其物理性质，探讨复混肥中γ-PGA的稳定性及γ-PGA对肥料物理性状的影响。结果表明，不同时段复混肥中γ-PGA含量相对稳定，但因不同加工工艺过程导致γ-PGA的检出率存在较大差异，其中，采用包裹肥料方式，检出率明显较高。γ-PGA对复混肥物理性状也有一定影响，采用造粒方式含γ-PGA复混肥无粉尘、无结块等现象，采用包裹方式含γ-PGA复混肥虽存在少量粉尘、结块等问题，但不至于影响肥料中γ-PGA含量，说明生产含γ-PGA复混肥以包裹方式相对较好。