• ISSN 1008-505X
  • CN 11-3996/S
陈磊, 郝明德, 张少民, 樊虎玲. 黄土高原旱地长期施肥对小麦养分吸收和土壤肥力的影响[J]. 植物营养与肥料学报, 2007, 13(2): 262-266. DOI: 10.11674/zwyf.2007.0213
引用本文: 陈磊, 郝明德, 张少民, 樊虎玲. 黄土高原旱地长期施肥对小麦养分吸收和土壤肥力的影响[J]. 植物营养与肥料学报, 2007, 13(2): 262-266. DOI: 10.11674/zwyf.2007.0213
CHEN Lei, HAO Ming-de, ZHANG Shao-min, FAN Hu-ling. Effects of long-term application of fertilizer on wheat nutrient uptake and soil fertility in Loess Plateau[J]. Journal of Plant Nutrition and Fertilizers, 2007, 13(2): 262-266. DOI: 10.11674/zwyf.2007.0213
Citation: CHEN Lei, HAO Ming-de, ZHANG Shao-min, FAN Hu-ling. Effects of long-term application of fertilizer on wheat nutrient uptake and soil fertility in Loess Plateau[J]. Journal of Plant Nutrition and Fertilizers, 2007, 13(2): 262-266. DOI: 10.11674/zwyf.2007.0213

黄土高原旱地长期施肥对小麦养分吸收和土壤肥力的影响

Effects of long-term application of fertilizer on wheat nutrient uptake and soil fertility in Loess Plateau

  • 摘要: 通过定位试验研究了长期施肥对小麦子粒、秸杆养分吸收和土壤肥力变化的影响。结果表明,合理施用化肥不但增产幅度大,还在一定程度上增加了小麦N、P、K养分浓度。单施氮、单施磷肥能增加小麦子粒和秸杆的N、P、K吸收量,氮磷肥配施增加效果显著,其子粒吸收N、P、K增加了153.2%、157.1%和162.4%。施有机肥能补充土壤中的N、P、K含量,增加小麦子粒中的养分含量,使品质有大幅度的提高。单施磷肥的土壤有机质、全P、速效P含量增加,土壤全N、速效N含量减少,N素亏缺。氮磷肥配施加剧了土壤K的亏缺。有机肥培肥作用显著,有机肥和氮、磷肥配施的土壤有机质、全N、全P、速效N、速效P和速效K分别增加了69.0%5、7.5%、54.8%、73.1%、830.5%和119.1%。

     

    Abstract: Based on a 20-years long-term fertilization experiment with fixed site on continuous wheat in Changwu,Shaanxi Province,the effect of long-term fertilizer application on the soil fertility and wheat nutrient uptake was studied.Results showed that rational use of chemical fertilizer not only increased wheat yield,but also increased N,P and K content in wheat to some extent.Single applying chemical fertilizer increased N,P and K uptake in wheat and straw,but the combination of N and P had a more pronounced effect,which increased by 143.3%,186.4% and 171.6% in N,P and K uptake in seeds,respectively.The combination of N,P and manure improved soil N,P and K content,increased nutrient content in grain and improved grain quality.Soil organic matter,total phosphorus,available phosphorus and available potassium were increased,while total N and available N were decreased in single phosphorus treatment.The combined application of N,P and manure made the soil organic matter,total N,total P,available N,available P,available potassium increased by 69.0%,57.5%,54.8%,73.1%,830.5% and 119.1%,respectively.It indicated that applying manure could increase soil fertility.

     

/

返回文章
返回