甘肃农业科技
甘肅農業科技
감숙농업과기
GANSU AGRICULTURAL SCIENCE AND TECHNOLOGY
2014年
8期
41-42,43
,共3页
王爱军%马秋叶%杨春旺%孙婧
王愛軍%馬鞦葉%楊春旺%孫婧
왕애군%마추협%양춘왕%손청
烤烟%根际养分%氮源%根系活力
烤煙%根際養分%氮源%根繫活力
고연%근제양분%담원%근계활력
Flue-cured tobacco%Rhizosphere nutrient%Nitrogen%Root activity
采用大田试验方法，研究了不同氮源对烤烟根系生长及根际土壤养分有效性的影响。结果表明，在等氮量条件下，现蕾期和圆顶期的根系鲜重施硝铵磷处理比施尿素处理分别提高19.61%、29.85%，根系氧化力分别提高23.11%、13.68%；土壤碱解氮在圆顶期根际、非根际分别增加了10.38%、9.97%，土壤速效磷在现蕾期和圆顶期根际分别增加了16.06%、12.76%。综合考虑，施用硝铵磷比施用尿素更有利于烤烟生长。
採用大田試驗方法，研究瞭不同氮源對烤煙根繫生長及根際土壤養分有效性的影響。結果錶明，在等氮量條件下，現蕾期和圓頂期的根繫鮮重施硝銨燐處理比施尿素處理分彆提高19.61%、29.85%，根繫氧化力分彆提高23.11%、13.68%；土壤堿解氮在圓頂期根際、非根際分彆增加瞭10.38%、9.97%，土壤速效燐在現蕾期和圓頂期根際分彆增加瞭16.06%、12.76%。綜閤攷慮，施用硝銨燐比施用尿素更有利于烤煙生長。
채용대전시험방법，연구료불동담원대고연근계생장급근제토양양분유효성적영향。결과표명，재등담량조건하，현뢰기화원정기적근계선중시초안린처리비시뇨소처리분별제고19.61%、29.85%，근계양화력분별제고23.11%、13.68%；토양감해담재원정기근제、비근제분별증가료10.38%、9.97%，토양속효린재현뢰기화원정기근제분별증가료16.06%、12.76%。종합고필，시용초안린비시용뇨소경유리우고연생장。
A field test method was conducted to investigate the effects of different nitrogen sources on tobacco root growth and and available nutrient of rhizosphere soil of tobacco. The results showed that the root fresh weight of application of ammonium nitrate and phosphorus treatment than in urea treatment increased by 19.61% ,29.85% ,root oxidation increased by 23.11% , 13.68%,respectively,at budding stage and mature stage in the condition of equal amount of nitrogen;soil available nitrogen of the rhizosphere and non-rhizosphere increased by 10.38%,9.91%,respectively,at mature stage,available phosphorus increased by 16.06%,12.76% respectively,at budding stage and mature stage. Considering the application of ammonium nitrate and phosphorus is more than urea conducive to the growth of flue-cured tobacco.
