Influence of long-term fertilization on phosphorus fertility of calcareous soil Ⅱ.Inorganic and organic phosphorus.

Abstract

Abstract: By the Jiang-Gu inorganic phosphorus fractionation method and the Bowman-Cole organic phosphorus fractionation method,this paper studied the forms and compositions of inorganic and organic phosphorus in 0～100 cm layer of calcareous soil after 23 years located experiment.The result showed that the content of inorganic phosphorus was in the order of treatment animal manure>fallow>chemical fertilizer>low rate straw>high rate straw>medium rate straw>no fertilizer.The IP i value of inorganic phosphorus forms in different fertilizer treatments had the following characteristics:a) it was relatively low for Ca₂-P,Ca₈-P and Al-P,but relatively high for Ca₁₀ -P,Fe-P and O-P;b) comparing with no fertilizer treatment,treatments animal manure and fallow had a notably high IP i value of Ca₂-P,Ca₈-P and Al-P and a low IP i value of Ca₁₀ -P,Fe-P and O-P;while treatment chemical fertilizer had a high IP i value of Ca₂-P,Ca₈-P,Al-P and O-P,but a low IP i value of Ca₁₀ -P and Fe-P;c) as for available phosphorus source (Ca₂-P,Ca₈-P and Al-P),their content was higher in treatment animal manure than in treatment chemical fertilizer,and higher in treatment chemical fertilizer than in treatments straws.A combined application of straw and chemical fertilizer could increase soil organic phosphorus content notably.Applying animal manure could increase the content of all organic phosphorus forms,while applying chemical fertilizer could promote the transformation of soil resistant organic phosphorus to labile and medium labile organic phosphorus.No fertilizer treatment had a relatively lower content of labile and medium labile organic phosphorus,but a relatively high content of resistant organic phosphorus.For treatment fallow,it had a relatively low content of soil organic matter and organic phosphorus,but a relatively high content of labile and medium resistant organic phosphorus.

Key words: Long-term located experiment, Calcareous soil, Fractionation of soil inorganic phosphorus, Fractionation of organic phosphorus

CLC Number:

Q143

XIE Linhua, LÜ Jialong, ZHANG Yipping, LIU Lihua . Influence of long-term fertilization on phosphorus fertility of calcareous soil Ⅱ.Inorganic and organic phosphorus.[J]. Chinese Journal of Applied Ecology, 2004, (5): 790-794.

References

[1] Bowman RA,Cole CA.1978.An exploratory method for fractionation of organic phosphorus from grassland soil.Soil Sci,125:95～101
[2] Cheng C-M(程传敏),Cao C-y(曹翠玉).1997.Transformationand availability of inorganic phosphorus in calcareous soils during flooding and draining alternating process.Acta Pedol Sin(土壤学报),34(4):382～391(in Chinese)
[3] Guo Z-F(郭智芬),Tu S-X(涂书新),Li X-H(李晓华),et al.1997.Contribution of different forms of inorganic phosphates in calcareous soils to phosphorus nutrition of crops.Sci Agric Sin(中国农业科学),30(1):26～32(in Chinese)
[4] Heckrath G,Brookes PC.1995.Phosphorus leaching from soils containing different phosphorus concentrations in the broad balk experiment.J Environ Qual,24:904～910
[5] He T(贺铁),Li S-J(李世俊).1987.On the fractionation of organic phosphorus in soil by Bowman-Cole's method.Acta Pedol Sin(土壤学报),24(2):152～159(in Chinese)
[6] Liu J-L(刘建玲),Zhang F-S(张富锁).2000.Dynamics of soil P pool in a long-term fertilizing experiment of wheat-maize rotation Ⅰ .Crop yield effect of fertilizer P and dynamics of soil total P and inorganic P.Chin J Appl Ecol(应用用生态学报),11(3):360～364(in Chinese)
[7] Liu J-L(刘建玲),Zhang F-S(张福锁).2000.Dynamics of soil P pool in a long-term fertilizing experiment of wheat-maize rotation Ⅱ .Dynamics of soil olsen-P and inorganic P.Chin J Appl Ecol(应用生态学报),11(3):365～368(in Chinese)
[8] Lu J-L(吕家珑),Liu W-G(刘文革),Wang X-D(王旭东),et al.1995.Effect of long-term fertilization on inorganic-P form composition in soil.Acta Univ Septentrionali Occidentali Agric(西北北农业大学学报),23(3):51～54(in Chinese)
[9] Jiang B-F(蒋柏藩),Gu Y-C(顾益初).1989.A suggested fractionation scheme of inorganic phosphorus in calcareous soils.Sci Agric Sin(中国农业科学),22(3):58～66(in Chinese)
[10] Ni J-Z(倪进治),Xu J-M(徐建民).2001.The size and characterization of biologically active organic phosphorus pool in soils.Plant Nut Fert Sci(植物营养养与肥料学报),7(1):56～63(in Chinese)
[11] Sarnadi A,Gilkes RJ.1998.Forms of phosphorus in virgin and fertilized calcareous soils of Western Australia.Aust J Soil Res,36:585～601
[12] Sharpley AN,Chapra SC,Wedepohl JT,et al.1994.Managing agricultural phosphorus for protection of surface waters:issues and options.J Environ Qual,23:437～451
[13] Shen R-F(沈仁芳),Jiang B-F(蒋柏藩).1992.Distribution and availability of various forms of inorganic-P in calcareous soils.Acta Pedol Sin(土壤学报),29(1):80～85(in Chinese)
[14] Sun X(孙羲),Zhang Y-S(章永松).1992.Effects of organic phosphorus in organic manures and paddy soil.Acta Pedol Sin(土壤学报),29(4):365～369(in Chinese)
[15] Wang X-D(王旭东),Li Z-Y(李祖荫),Zhang Y-P(张一平).Phosphorus change and its supply ability of different organic materials in soil.Chin J Soil Sci(k壤通报),29(3):113～115(in Chinese)
[16] Wang X-D(王旭东),Zhang Y-P(张一平),Li Z-Y(李祖荫).1997.Study on the variation of organic phosphorus component in Lou soil(Cumulic cinnamon soil).Soil Fert(土壤肥料),(5):16～18(in Chinese)
[17] Xie L-H(谢林花),Lu J-L(吕家珑),Zhang y-p(张一平),et al.2004.Influence of long term fertilization on phosphorus fertility of calcareous soil Ⅰ .Organic matter,total phosphorus and availablephosphorus.Chin J Appl Ecol(应用生态学报),15(5):787～789(in Chinese)
[18] Yu W-T(宇万太),Chen X(陈欣),Zhang L(张璐),et al.1996.Changes of soil phosphorus pool under low-input phosphorus fertilization system Ⅰ .Soil total,organic and inorganic phosphorus pools.Acta Pedol Sin(土壤学报),33(4):373～379(in Chinese)