ZHOU Bao-ku,ZHANG Xi-l in,LI Shi-long,et al.Study on Soil Phosphorus Accumulation and Its Availability Through Long -term Fertilization to Balck Soil[J].HEILONGJIANG AGRICULTURAL SCIENCES,2004,(04):5-8.[doi:10.11942/j.issn1002-2767.2004.04.0005]
长期施肥对黑土磷素积累及有效性影响的研究
- Title:
- Study on Soil Phosphorus Accumulation and Its Availability Through Long -term Fertilization to Balck Soil
- 文章编号:
- 1002 -2767(2004)04 -0005 -04
- 分类号:
- S155 .2
- 文献标志码:
- A
- 摘要:
- 通过黑土长期定位试验, 查明了长期不同施肥条件下, 土壤磷素积累及有效性。长期不施肥, 土壤全磷下降37 .4 %, 速效磷下降了60 %;长期施用磷肥土壤全磷增加53 .9 %~ 65 .7 %, 速效磷增加6 ~ 15 倍。积累在土壤中的磷素具有生物有效性。
- Abstract:
- The soil phosphorus accumulation and its av ailabili ty were tested throug h long term andfixed -site t rails for black soil .The result show that total P and available P in soil decreased by 37 .4 %and 60 % respectively , if no fert ilizer applying fo r a long time .If applying phosphorus fertilizer to blacksoil fo r a long term , total P and available P increased by 53 .9 %~ 65 .7 % and 6 ~ 10 times , respectively.The accumulated phosphorus in black soil is available to crop .
参考文献/References:
[ 1]林葆, 林继雄, 李家康.关于合理施用磷肥的几个问题[ J] .土壤, 1992 , 24(2):57-60.
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备注/Memo
收稿日期:2004 -02 -16