CAJ | 학술논문

为研究安国市药田和粮田土壤中有效氮含量累积及分布特征，分析了河北省安国市药田和粮田不同土壤深度中有效氮的含量。结果表明，药田和粮田土壤中有效氮含量在各地块间差异较大；药田和粮田土壤中有效氮含量随土层深度的增加而减低，差异极显著（P＜0．01）；药田0～20，20～40，40～60 cm土壤中有效氮含量分别为39.42，24．02，16．07 mg／kg，粮田0～20，20～40，40～60 cm土壤中有效氮含量分别为37．37，22．88，13．20 mg／kg，粮田土壤中有效氮含量略低于药田土壤。按照第2次全国土壤普查确定的土壤肥力分级标准可知，药田和粮田中有效氮含量处于五级或六级水平，肥力很低。由此说明，药田和粮田土壤的供氮水平相当，但土壤氮素肥力较低，生产中应多采取有机肥与无机肥配施提高地力。
위연구안국시약전화량전토양중유효담함량루적급분포특정，분석료하북성안국시약전화량전불동토양심도중유효담적함량。결과표명，약전화량전토양중유효담함량재각지괴간차이교대；약전화량전토양중유효담함량수토층심도적증가이감저，차이겁현저（P＜0．01）；약전0～20，20～40，40～60 cm토양중유효담함량분별위39.42，24．02，16．07 mg／kg，량전0～20，20～40，40～60 cm토양중유효담함량분별위37．37，22．88，13．20 mg／kg，량전토양중유효담함량략저우약전토양。안조제2차전국토양보사학정적토양비력분급표준가지，약전화량전중유효담함량처우오급혹륙급수평，비력흔저。유차설명，약전화량전토양적공담수평상당，단토양담소비력교저，생산중응다채취유궤비여무궤비배시제고지력。
The distribution characteristic of alkali-hydrolysable nitrogen was studied by analysis of alkali-hydro-lysable nitrogen content in different soil depth of herbal fields and food-crop fields in Anguo city ,Hebei province . The results indicated that difference of alkali-hydro nitrogen content in the lands between blocks of herbal fields and food-crop fields was magnitudes ,and alkali-hydro nitrogen content was reduced with the increase of soil depth ,ex-tremely significant difference (P<0.01).Alkali-hydro nitrogen content of 0-20,20-40,and 40-60 cm in herb-al fields and food-crop fields were 39.42,24.02,and 16.07 mg/kg and 37.37,22.88,and 13.20 mg/kg,respec-tively.Alkali-hydro nitrogen content of food-crop fields was slightly lower than herbal field soils .Alkali-hydrolysable nitrogen content of herbal fields and food-crop fields were in fifth or sixth level according to the soil fertility classifi-cation standards of the second national soil survey ,and the fertility of soils were low .Therefore,soil nitrogen suppl-ying capacity of herbal fields and food-crop fields were similar , but the soil fertility was low , so more measures should be taken to improved soil fertility ,as application of organic and nitrogen fertilizer .