CAJ | 학술논문

通过盆栽试验,研究了不同土壤供钾水平对烟株长势、生理生化指标和下部烟叶含钾量的影响,并以此制定钾素丰缺指标.试验结果初步得出,烤烟现蕾初期下部烟叶钾含量小于0.9%为缺钾,0.9%～1.25%为轻度缺钾,1.26%～1.60%为潜在缺钾,大于1.60%为钾素充足;土壤速效钾含量小于55 mg/kg为低,55～110 mg/kg为较低,110～160 mg/kg为中等,160～230 mg/kg为较丰富,>230 mg/kg为丰富.
통과분재시험,연구료불동토양공갑수평대연주장세、생리생화지표화하부연협함갑량적영향,병이차제정갑소봉결지표.시험결과초보득출,고연현뢰초기하부연협갑함량소우0.9%위결갑,0.9%～1.25%위경도결갑,1.26%～1.60%위잠재결갑,대우1.60%위갑소충족;토양속효갑함량소우55 mg/kg위저,55～110 mg/kg위교저,110～160 mg/kg위중등,160～230 mg/kg위교봉부,>230 mg/kg위봉부.
A pot experiment was conducted to study the effects of soil potassium supply level on the growth,indices of physiology and biochemistry,and the potassium content in lower leaves of tobacco plant.The results showed that in early budding stage,when the potassium content of lower leaves was below 0.9%,the tobacco plant was deficient in potassium,when the content ranged 0.9%-1.25%,the tobacco plant was less deficient in potassium,and 1.26%-1.6% was potencially deficient,over 1.60% was sufficient.The content of soil available potassium was lower when below 55 mg/kg,deficient when 55-110 mg/kg,moderate when 110-160 mg/kg,relatively rich when 160-230 mg/kg,and rich when over 230 mg/kg.