索东让.长期定位试验中化肥与有机肥结合效应研究[J].干旱地区农业研究,2005,(2):71~75
长期定位试验中化肥与有机肥结合效应研究
Combined fertilization of chemical and organic fertilizers in along-term position experiment
  
DOI:10.7606/j.issn.1000-7601.2005.02.15
中文关键词:  化肥与有机肥结合  增产率  供肥率  残留率  土壤养分
英文关键词:combination  organic fertilizers  chemical fertilizers  yield-increasing rate  fertilizer-supplying rate  residual rate  soil nutrient
基金项目:甘肃省科学事业资助(GS031-13)
作者单位
索东让 甘肃省张掖市农科所甘肃 张掖 734000 
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中文摘要:
      21a试验表明,化肥有机肥结合施用表现出的增产率、供肥率均大于二者分别单施。有机肥与N素化肥结合效果最显著,连应值1.33,增产率大于二者单施之和,比单施平均增产55.4%;与P素化肥连应值为0.90,比单施平均增产19.3%;与K素化肥连应值为0.57,比单施平均增产8.4%。与N素配施N素残留率26.5%~35.1%,土壤全N、速效N比单施提高9.3%~73.3%和10.1%~46.9%;与P素配施P残留率68.3%~69.7%,土壤全P、速效P比单施提高5.3%~26.6%和200%~207%;与K素配施土壤K素亏缺量年均降低28.8%~78.5%,土壤速效钾比单施提高84.6%~128%。配施土壤有机质比单施提高41.8%~56.8%。
英文摘要:
      A 21-year experiment showed the combined fertilization was better than the single fertilization in fertilizer supply. The combined fertilization of organic fertilizers and nitrogenous chemical fertilizers showed the best performance with an interactive value of 1.33 and its yield-increasing effect was more than the single fertilization of either of the two. The combined fertilization of organic and phosphorous fertilizers had a interactive value of 0.90 and increased crop yields by 19.3% on average compared with the single fertilization of the two; the combined fertilization of organic and potassium fertilizers had an interactive value of 0.57 and increased crop yields by 8.4% compared with their single fertilization; in the combined fertilization of organic fertilizers and nitrogen fertilizers, the residual nitrogen rate ranged between 26.5% and 35.1% and the total nitrogen and available nitrogen increases respectively by 9.3%~73.3% and (10.1%)~46.9% compared with those in their single fertilization; in the combined fertilization of organic and phosphorous fertilizers , the residual phosphorous rate ranged between 68.3% and 69.7% and the total phosphorous and available phosphorous increased by 5.3%~26.6% and 200%~207% compared with those in their single fertilization; in the combined fertilization of organic and potassium fertilizers, the shortage of soil potassium decreased by 28.8%~78.5% and the available potassium increased by (84.6%~)128% compared with those in their single fertilization. In the combined fertilization, the soil organic matter increased by 41.8%~56.8%.
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