CAJ | 학술논문

土壤普查14年后，安康川道和中高山区作物出现缺钾症面积不断增大。对此，我们对全市不同区域耕地土壤进行了调查分析，结果表明：土壤速效钾与土查时相比，平均下降37.06 mg/kg,水稻土下降32.27 mg/kg，旱地土壤下降34.5 mg/kg；速效钾＜100 mg/kg的水田占60.68%，旱地占59.59%，川道占78%，中高山(镇坪、平利)占96.43%；土壤钾素下降趋势是中高山＞川道＞丘陵。钾肥试验表明：施1kg K2O，水稻、小麦、玉米、薯类、油菜分别平均增产13.83，8.1，26.6，497.39，2.75 kg。5年累计示范应用钾肥68.05万 hm2，累计增产粮食24.27万t，油菜0.14万t、烟草1.69万t，补钾效益显著。
토양보사14년후，안강천도화중고산구작물출현결갑증면적불단증대。대차，아문대전시불동구역경지토양진행료조사분석，결과표명：토양속효갑여토사시상비，평균하강37.06 mg/kg,수도토하강32.27 mg/kg，한지토양하강34.5 mg/kg；속효갑＜100 mg/kg적수전점60.68%，한지점59.59%，천도점78%，중고산(진평、평리)점96.43%；토양갑소하강추세시중고산＞천도＞구릉。갑비시험표명：시1kg K2O，수도、소맥、옥미、서류、유채분별평균증산13.83，8.1，26.6，497.39，2.75 kg。5년루계시범응용갑비68.05만 hm2，루계증산양식24.27만t，유채0.14만t、연초1.69만t，보갑효익현저。
Cropland of lack of potassium is now getting larger and larger in Ankang plain and medium-high mountain area since the general survey of soil conducted 14 years ago,we made a investigation on the soil of different area in Ankeng.The result indicates that the average quick-acting potassium of soil has declined 37.06 mg/kg in comparison with fouteen years ago. The declining tread of potassium is medium-high mountain＞plain＞hill.The experiment shows that the average amount of increase in production of rice,wheat,maize,yam,rape are 13.83,8.1,26.6,497.39,2.75 kg respectively through applying 1 kg K2O.After 5 years demonstrative experiment,the total amount of increase in grain production is 242 700 t,and tobacco is 1 400 t,the effect of adding potassium is remarkable.