CAJ | 학술논문

通过对哈密垦区棉花红叶茎枯病的发病田与不发病田不同时期土壤养分及植株不同部位养分含量的检测，结果表明：壤土棉田的棉花红叶茎枯病的发病率高于黏土棉田；发生棉花红叶茎枯病的棉田，棉花花期土壤中速效氮和速效磷的含量增加，铃期土壤中速效氮和速效磷的含量降低，对照棉田从棉花苗期到铃期土壤中速效氮、速效磷含量持续增加；发生棉花红叶茎枯病的棉田，棉花根、茎、叶、铃中全氮和全磷的含量无明显变化趋势，但全钾的含量在铃期低于对照。
통과대합밀은구면화홍협경고병적발병전여불발병전불동시기토양양분급식주불동부위양분함량적검측，결과표명：양토면전적면화홍협경고병적발병솔고우점토면전；발생면화홍협경고병적면전，면화화기토양중속효담화속효린적함량증가，령기토양중속효담화속효린적함량강저，대조면전종면화묘기도령기토양중속효담、속효린함량지속증가；발생면화홍협경고병적면전，면화근、경、협、령중전담화전린적함량무명현변화추세，단전갑적함량재령기저우대조。
The paper tested the nutrient content of different parts of plant and soil nutrient in different period in morbidi-ty and not morbidity field.The results showed that,incidence rates of red leaves and stem wilting in loam soil cotton field high-er than the clay cotton field;the red leaves and stem wilting cotton field,increased with the content of soil available nitrogen and available phosphorus in cotton flowering,reduced the content of boll stage soil available nitrogen and available phospho-rus,from cotton seedling to boll period of controlled cotton field,soil available nitrogen,available phosphorus content contin-ued to increase;cotton red leaves and stem wilting in cotton field,total nitrogen content of cotton root,stem,leaf,boll and total phosphorus had no obvious change trend,but the total potassium content in boll stage was lower than that of control.