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Position: Home > Articles > Research on nutrient-releasing characteristics of bio-organic-inorganic compound fertilizer Soil and Fertilizer Sciences in China 2010 (1) 49-53

生物有机无机复混肥的养分释放特征研究

作  者：
王家顺;赵承;陆引罡
单  位：
辽宁省测绘局;贵州大学农学院;安顺学院化学与生物农学系
关键词：
生物有机无机复混肥;养分释放;矿化;硝化
摘  要：
通过好气培养间歇淋洗法和室内培养法,研究了生物有机无机复混肥的养分释放和氮素在土壤中的矿化规律。结果表明,生物有机无机复混肥的氮磷钾淋洗累积量呈现"S"型曲线,氮素淋洗释放量在第21 d达到最高峰,磷素在第28 d养分释放量达到高峰,钾素在28~35 d出现养分释放高峰,养分释放更加平缓;氮素在土壤中矿化率2.8%~3.2%,0~18 d表现为净固定过程,18 d以后开始矿化释放无机氮,第35 d达到高峰,硝化作用进行比较缓慢,硝化率表现为前期弱,后期强。
译  名：
Research on nutrient-releasing characteristics of bio-organic-inorganic compound fertilizer
作  者：
WANG Jia-shun1,ZHAO Cheng2,LU Yin-gang3(1.Department of Chemical and Biological Agriculture,Anshun College,Guizhou Anshun 561000;2.Bureau of Surveying and Mapping of Liaoning Province,Liaoning Shenyang 110034;3.Agricultural College of Guizhou University,Guizhou Guiyang 550025)
关键词：
bio-organic-inorganic compound fertilizer;nutrients release;mineralization;nitration
摘  要：
The results of the compound fertilizer's releasing law based on the intermissive pouring and washing showed: in the whole experiment period,a " S" curve was found in the accumulation of release of nitrogen,phosphor and kalium,with their peaks respectively in the 21th,28th,and 28th～35th day.The nutrients released steadily and permanently.The mineralization and nitration culture experiments in lab indicated that in the soil with 65% water content of outward fields and temperature of 30 ℃,the mineralization rate of nitrogen of the compound fertilizer was 2.8%～3.2%.In the period of 0～18 day,only net stabilization progress was shown,and inorganic nitrogen had been released since the 18th day,a peak of mineralization rate in the 35th day,following that was a descending trend of nitrogen releasing.It was proved that nitration did not change largely from the start point to the end of culture experiments,the nitration rate was weak for the earlier period,was later period strong.

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