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研究证明我国各类土壤(包括酸性、碱性、石灰性或旱地、水田土壤)好气培养法(测定培养后的 NO_3-N 和 NH_4-N)与厌气培养法(测定培养后的 NH_4-N 和初始 NO_3-N)结果之间都有很高的相关性;冬小麦盆栽试验的相关研究表明这二种培养法都可作为测定土壤有效氮的参比方法。另一方面,我国各地不同土类的三项电超滤-吸光量(EUF-Q_T,-Q_(OM)和-Q_(NO_3)能对应地表征土壤的 EUF-N_T,-N_(OM)和-N_(SO_3)。通过以培养矿化氮为参比的相关研究,证明我国各土类旱地土壤的这三项 EUF-Q 值可以很好地分别反映有效氮容量因子、土壤易水解的有机氮和土壤硝态氮;但 EUF-Q 法不能适用于水田土壤。
Studies have shown that all kinds of soils in China (including acid, alkaline, calcareous or dry land, paddy soils) good gas culture method (measured after the cultivation of NO_3-N and NH_4-N) and anaerobic culture (measured NH_4-N And initial NO3-N). The results of pot culture experiments in winter wheat indicated that both methods could be used as a reference method to determine soil available nitrogen. On the other hand, EUF-N_T, -Q_ (OM) and -Q_ (NO_3) of three kinds of electrospray ionization in different soils all over China can characterize the EUF-N_T, -N_ (OM) and -N_ (SO_3) .Through the study of mineralized nitrogen as a reference, it is proved that these three EUF-Q values of soil in different types of dryland in our country can well reflect the effective nitrogen capacity factor, the soil easily hydrolyzed organic Nitrogen and soil nitrate nitrogen; however, the EUF-Q method can not be applied to paddy soil.