Relationship Between Soil Available Phosphorus and Inorganic Phosphorus Forms Under Equivalent Organic Matter Condition in a Tier Soil
LI RuoNan, WANG ZhengPei, BATBAYAR Javkhlan, ZHANG DongJie, ZHANG ShuLan, YANG XueYun,College of Natural Resources and Environment, Northwest A&F University/Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi
Abstract 【Objective】 Investigating the contribution of inorganic phosphorus (P) fractions to soil available phosphorus under equivalent soil organic matter content might be helpful in development of phosphate fertilizer management strategy whereby to improve phosphorus use efficiency in a given soil.【Method】 We collected and screened the soils with a gradient of Olsen P level but the quite similar soil organic matter content (SOC ranges from 10.03 to 10.68 g·kg -1) in a Tier soil under winter wheat-summer maize cropping in Guanzhong Plain of Shaanxi Province. The Olsen P contents of the selected soil samples were 10.73 mg·kg -1, 18.06 mg·kg -1, 20.61 mg·kg -1, 24.01 mg·kg -1, 30.73 mg·kg -1, 43.69 mg·kg -1, and 58.58 mg·kg -1, respectively. We then analyzed the soil inorganic phosphorus forms with the phosphorus fractionation method developed by Chang & Jackson and modified by Jiang & Gu.【Result】 The results showed that the calcium bounded phosphorus fraction was the dominant form in the cultivated soil in the northwestern winter wheat-summer maize planting area, accounting for 66.67% of the total amount of inorganic phosphorus, of which dicalcium phosphate (Ca2-P), octa-calcium phosphate (Ca8-P) and apatite (Ca10-P) account for 2.80%, 16.80% and 47.09%, respectively, on average; and aluminum bounded phosphate (Al-P), iron bounded phosphate (Fe-P) and occluded phosphate (O-P) composed of 16.28%, 5.23% and 11.81%, respectively. Soil Olsen P was increased significantly and linearly with the increasing content of Ca2-P, Ca8-P, Ca10-P, Al-P, Fe-P and O-P; while the phosphorus activation coefficients, defined as the ratio of soil Olsen P to total P, were correlated significantly positively and linearly to the content of Ca2-P, Ca8-P, Al-P, Fe-P and O-P. The results of path analysis showed that the contribution of inorganic phosphorus to soil available phosphorus (Olsen P) in Guanzhong Plain area of Shaanxi Province was in the order of Ca2-P (0.974)>Al-P (0.186)>Ca8-P (0.182)>Fe-P (0.150)>Ca10-P (0.007)>O-P (-0.074), the contribution of inorganic phosphorus to phosphorus activation coefficient (PAC) was Ca2-P (0.768)>Al-P (0.082)>Ca8-P (0.071)>Fe-P (-0.018)>Ca10-P (-0.055)>O-P (-0.388), which was consistent with the contribution of soil phosphorus component to available phosphorus. The results of stepwise regression analysis showed that Ca2-P and Ca8-P were the major two contributors to Olsen P, but the Ca2-P contributed the most to PAC.【Conclusion】 Under the same or similar soil organic matter condition, Ca2-P was the most effective phosphorus source in Tier soil of wheat-maize growing area in Guanzhong Plain of Shaanxi Province. The increase of soil phosphorus availability was mainly achieved by increasing the proportion of phosphorus forms of readily available and relatively high availability such as Ca2-P, Ca8-P and Al-P, and reducing the proportion of very low availability forms, i.e. Ca10-P. Generally, under current cropping system, the application of phosphate fertilizers mainly kept the soil phosphorus in pools of available forms in the Guanzhong Plain. Keywords:forms of inorganic phosphorus;winter wheat summer maize cropping;tier;phosphorus availability;Olsen P gradient
PDF (2244KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 李若楠, 王政培, BATBAYARJavkhlan, 张东杰, 张树兰, 杨学云. 等有机质 土有效磷和无机磷形态的关系 [J]. 中国农业科学, 2019, 52(21): 3852-3865 doi:10.3864/j.issn.0578-1752.2019.21.014 LI RuoNan, WANG ZhengPei, BATBAYAR Javkhlan, ZHANG DongJie, ZHANG ShuLan, YANG XueYun. Relationship Between Soil Available Phosphorus and Inorganic Phosphorus Forms Under Equivalent Organic Matter Condition in a Tier Soil[J]. Scientia Agricultura Sinica, 2019, 52(21): 3852-3865 doi:10.3864/j.issn.0578-1752.2019.21.014
Table 2 表2 表2土不同有效磷水平下土壤无机磷相对含量(%) Table 2The proportion of different forms of inorganic phosphorus to total inorganic phosphorus in soils with a gradient of Olsen P level of a tier soil
土壤样品 Soil sample
各形态无机磷占总无机磷的百分比 Proportion of inorganic phosphorus fraction to total (%)
Ca2-P
Ca8-P
Ca10-P
Ca-P
Al-P
Fe-P
O-P
S 1
1.63c
14.84bc
53.65a
70.12a
12.50c
5.63ab
11.76a
S 2
2.02bc
13.92c
54.24a
70.19a
12.32c
5.84a
11.65a
S 3
2.23b
16.26b
50.17ab
68.66a
13.46c
4.93ab
12.95a
S 4
2.31b
19.05a
45.83bc
67.18a
16.84b
4.44b
11.54a
S 5
3.64a
16.61b
47.30b
67.54a
14.83bc
5.36ab
12.27a
S 6
3.69a
16.48b
42.39c
62.57b
21.02a
4.84ab
11.56a
S 7
4.08a
20.43a
35.95d
60.46b
22.97a
5.60ab
10.97a
Mean
2.80
16.80
47.08
66.67
16.28
5.23
11.81
Different lowercase letters within a column indicate significant differences of the relative content of phosphorus fraction between soil samples at the 5% probability level 同列数据后不同小写字母表示同一无机磷组分相对含量在不同土壤样品间差异显著(5%)
图中不同小写字母表示同一形态磷在不同磷梯度土壤样品间差异达显著(5%) Fig. 2Content of different forms of inorganic phosphorus in a tier soil with a gradient of Olsen P level
Different lower-case letters on top of the bars represent significant difference of the phosphorus fraction between the soil samples in question (P<5%)
Fig. 3The relationship between the content of different forms of inorganic phosphorus and the content of Olsen P in a tier soil with a gradient of Olsen P level
Fig. 4The relationship between the relative content of inorganic phosphorus fractions and the content of Olsen P in a tier soil with a gradient of Olsen P level
Fig. 5Phosphorus activation coefficient (PAC) as a function of the concentration of different forms of inorganic phosphorus in a tier soil with a gradient of Olsen P level
Table 3 表3 表3土壤无机磷组分与有效磷含量之间的通径分析 Table 3Path analysis for soil available phosphorus content (Olsen P) as a function of soil inorganic phosphorus fractions
作用因子 Factor
直接作用 Direct effect
间接作用 Indirect effect
与y的相关系数 Correlation coefficient with y
x1→y
x2→y
x3→y
x4→y
x5→y
x6→y
Ca2-P (x1)
0.974
0.160
0.003
0.175
0.119
-0.065
0.974
Ca8-P (x2)
0.182
0.855
0.004
0.174
0.103
-0.063
0.897
Ca10-P (x3)
0.007
0.439
0.093
0.094
0.039
-0.048
0.444
Al-P (x4)
0.186
0.917
0.170
0.004
0.121
-0.063
0.938
Fe-P (x5)
0.150
0.773
0.125
0.002
0.151
-0.047
0.828
O-P (x6)
-0.074
0.852
0.154
0.005
0.158
0.095
0.834
y为有效磷含量。表4同 y: Denotes soil available phosphorus content. The same as Table 4
Table 5 表5 表5土壤无机磷组分与磷活化系数(PAC)之间的通径分析 Table 5Path analysis for phosphorus activation coefficient(PAC)as a function of soil inorganic phosphorus fractions
XIANG WS, HUANGM, LI XY . Progress on fractioning of soil phosphorous and availability of various phosphorous fractions to crops in soil Journal of Plant Nutrition and Fertilizer, 2004,10(6):663-670. (in Chinese) [本文引用: 1]
CHANG YL, LIU JM, LI YH, SUN BH, ZHANG SL, YANG XY . Investigation and evaluation of fertilization under winter wheat and summer maize rotation system in Guanzhong Plain, Shaanxi Province Journal of Northwest A&F University (Natural Science Edition), 2014,42(8):51-61. (in Chinese) [本文引用: 1]
LU RK , The phosphorus level of soil and environmental protection of water body Phosphate and Compound Fertilizer, 2003,18(1):4-6. (in Chinese) [本文引用: 1]
BROCK EH, KETTERINGS QM ,KLEINMAN P JA. Phosphorus leaching through intact soil cores as influenced by type and duration of manure application Nutrient Cycling in Agroecosystems, 2007,77(3):269-281. DOI:10.1007/s10705-006-9065-3Magsci [本文引用: 1] <a name="Abs1"></a>Leaching of phosphorus (P) in manure-amended soils has received increased attention as a significant source of non-point source P pollution. Intact soil cores were collected from fields on a farm in Southern New York to test the effects of long-term dairy or poultry manure application on P leaching. Nine fields were selected (four poultry, four dairy, and one unamended) to represent a broad range of P saturation levels (5.3 to 62.4%) in the topsoil (0–7.5 cm). Water was applied weekly at a rate matching a 1-year return period storm for the study area (230 mm h<sup>−1</sup>). Dissolved reactive P (DRP) losses in leachate from all soil cores ranged from 0.007 to 0.055 kg P ha<sup>−1</sup>, except in two fields with long-term histories of dairy and poultry manure application, where losses averaged 0.21 and 0.45 kg P ha<sup>−1</sup>, respectively. Hydrographs of the field with the dairy manure history suggested preferential flow as an explanation of leachate P enrichment. In the poultry manure amended field, high levels of soil P saturation throughout the profile suggested subsoil P desorption as a factor controlling leachate P. Surface application of dairy manure to the soil cores (167 kg total P ha<sup>−1</sup>) increased the mean leachate DRP concentration from 1.5 to 10.5 fold. After five leaching events spanning 22 days, DRP concentrations remained 2.0 to 13.4 fold above pre-manure application levels. This study points to saturation of P in subsoils by long-term manure application as a key concern to P loss in leachate and highlights the role of annual manure additions on subsurface P loss potential.
LAIL, HAO MD, PENG LF . The variation of soil phosphorus of long-term continuous cropping and management on Loess Plateau .Research of Soil and Water Conservation, 2003(1):68-70. (in Chinese) [本文引用: 1]
BAO SD. Soil and Agricultural Chemistry Analysis.3rd ed. Beijing: China Agriculture Press, 2005. ( in Chinese) [本文引用: 2]
BAIJ, YEX, JIAJ, ZHANGG, ZHAOQ, CUIB . Phosphorus sorption-desorption and effects of temperature, pH and salinity on phosphorus sorption in marsh soils from coastal wetlands with different flooding conditions Chemosphere, 2017: S0045653517313413. [本文引用: 1]
JIANG BF, GU YC . A suggested fractionation scheme of inorganic phosphorus in calcareous soils Scientia Agricultura Sinica, 1989,20(3):58-66. (in Chinese) [本文引用: 1]
HAN XF, GAOM, XIE DT, WANG ZF, CHENC . Inorganic phosphorus in a regosol (purple) soil under long-term phosphorus fertilization Acta Prataculturae Sinica, 2016,25(4):63-72. (in Chinese) [本文引用: 1]
ESCUDEYM, GALINDOG, JUANEF, MARGARITAB, PATRICIAD, ANDREWC . Chemical forms of phosphorus of volcanic ash derived soils in Chile Communications in Soil Science and Plant Analysis, 2001,32(5/6):16. [本文引用: 1]
YANG XJ, POST WM . Phosphorus transformations as a function of pedogenesis: A synthesis of soil phosphorus data using Hedley fractionation method .Biogeosciences, 2011(10):2907-2916. [本文引用: 1]
LIN LH, HAN XR, LIU XH, ZHAN XM . Effects of long-term fertilization on phosphorus forms and transformation in Brown soil Chinese Journal of Soil Science, 2006,37(1):80-83. (in Chinese) [本文引用: 1]
LUOL, MAY, SANDERS RL, XUC, LIJ ,MYNENI S C B. Phosphorus speciation and transformation in long-term fertilized soil: evidence from chemical fractionation and PK-edge XANES spectroscopy Nutrient Cycling in Agroecosystems, 2017,107(2):215-226. [本文引用: 1]
BOLR, JULICHD ,BR?DLIND,SIEMENS J,KAISER K,DIPPOLD M. A,SPIELVOGEL S,ZILLA T,MEWES D.Dissolved and colloidal phosphorus fluxes in forest ecosystems-an almost blind spot in ecosystem research .Journal of Plant Nutrition and Soil Science, 2016(179):425-438. [本文引用: 1]
XAVIER F A D S, OLIVEIRA T SD, ANDRADE FV, MENDON?A E DS . Phosphorus fractionation in a sandy soil under organic agriculture in Northeastern Brazil Geofisica Internacional, 2009,151(3):417-423. [本文引用: 1]
AULAKH MS, GARG AK, KABBA BS . Phosphorus accumulation, leaching and residual effects on crop yields from long-term applications in the subtropics Soil Use and Management, 2007,23:417-427. [本文引用: 1]
ZHAN XY, RENY, ZHANG SX, KANG RF . Changes in Olsen phosphorus concentration and its response to phosphorus balance in main types of soil in China Scientia Agricultura Sinica, 2015,48(23):4728-4737. (in Chinese) [本文引用: 1]
HUANGJ, ZHANG YZ, XU MG, GAO JS . Evolution characteristics of soil available phosphorus and its response to soil phosphorus balance in paddy soil derived from red earth under long-term fertilization Scientia Agricultura Sinica, 2016,49(6):1132-1141. (in Chinese) [本文引用: 1]
HUN, YUANH, LAN JC, YUAN DF, FU WL, WEN ZL . Factors influencing the distribution of inorganic phosphorus fractions in different vegetation restoration areas in karst rocky desertification areas Acta Ecologica Sinica, 2014,34(24):7393-7402. (in Chinese) [本文引用: 2]
MANNA MC, SWARUPA, WANJARI RH, MISHRAB, SHAHI DK . Long-term fertilization, manure and liming effects on soil organic matter and crop yields Soil and Tillage Research, 2007,94(2):397-409. [本文引用: 2]
YANGH, CAO JH, SUNL, YI HN, HOU YL . Fractions and distribution of inorganic phosphorus in different land use types of Karst Area Journal of Soil and Water Conservation, 2010,24(2):135-140. (in Chinese) [本文引用: 1]
YU QY, LI XL, LI FR, WANG JF . Content of soil inorganic phosphorus fractions in Anhui Province and effects of fertilization on soil phosphorus . Journal of Soil and Water Conservation, 2006(4):57-61. (in Chinese) [本文引用: 1]
GUO SL, DANG TH, HAO MD . Phosphorus changes and sorption characteristics in a calcareous soil under long-term fertilization Pedosphere, 2008,18(2):248-256. DOI:10.1016/S1002-0160(08)60014-4Magsci [本文引用: 1] <h2 class="secHeading" id="section_abstract">Abstract</h2><p id="">Knowledge of phosphorus (P) behavior in long-term fertilized soils is essential for programming fertilization practices and for sustaining environmental quality. The long-term (1984–1997) effects of various fertilization treatments on P changes and sorption isotherms as well as the relationship of soil properties to P sorption and P forms were evaluated in an Ustic Isohumisol, a calcareous soil, on the Loess Plateau, China. Compared to 1984, after 13 years of crop production, total soil P in the no-P treatments (control and N treatment) decreased by 5%–7%, but in the phosphorus fertilizer alone (P), nitrogen and phosphorus fertilizers in combination (NP), manure alone (M), and nitrogen and phosphorus fertilizers and manure in combination (NPM) treatments, it increased by 22%, 19%, 28%, and 58%, respectively. Residual fertilizer P was found mainly in NH<sub>4</sub>Ac-soluble P (Ca<sub>8</sub>-P), followed by NaHCO<sub>3</sub>-soluble P (NaHCO<sub>3</sub>-P), and NH<sub>4</sub>F-soluble P (Al-P). Phosphorus sorption in the soils with different fertilization practices fit the Langmuir equations. Phosphorus sorption capacity in the no-P treatments increased, whereas it decreased in the P-included treatments (P, NP, and NPM treatments). Phosphorus sorption maximum (Q<sub>m</sub>) was significantly and negatively correlated to inorganic P including NaHCO<sub>3</sub>-P, Ca<sub>8</sub>-P, NaOH-Na<sub>2</sub>CO<sub>3</sub>-soluble P (Fe-P), and Al-P (P ≤ 0.01). Moreover, long-term fertilization increased soil organic carbon in the NP, M, and NPM treatments and decreased pH in the NP and NPM treatments. Thus, the ability of the soil to release sorbed P to the environment increased under long-term P fertilization.</p>
XIE LH, LV JL, ZHANG YP, LIU XW, LIU LH . Influence of long-term fertilization on phosphorus fertility of calcareous soil I. Organic matter, total phosphorus and available phosphorus Chinese Journal of Applied Ecology, 2004,15(5):787-789. (in Chinese) [本文引用: 1]
XIA HY, WANG KR . Effects of soil organic matter on characteristics of phosphorus adsorption and desorption in calcareous yellow fluvo-aquic soil and lime concretion black soil Plant Nutrition and Fertilizer Science, 2009,15(6):1303-1310. (in Chinese) [本文引用: 1]
JIANG BF, GU YC . A suggested fraction scheme of inorganic phosphorus in calcareous soils Scientia Agricultura Sinica, 1989,22(3):58-66. (in Chinese) [本文引用: 1]
WU QH . Mechanisms of difference in phosphorus availability and fertilizer P use efficiency in three soils under long-term fertilizations [D]. Beijing: China Agricultural University, 2018. ( in Chinese) [本文引用: 2]
CAO YF, ZHANGH, LIUK, DAI YC, LV JL . Effects of different fertilization implementations on phosphors fraction of manural loessial soil.Agricultural research in the Arid Areas, 2015(5):115-120. (in Chinese) [本文引用: 1]
XIE LH, LV JL, ZHANG YP, LIU XW, LIU LH . Influence of long-term fertilization on phosphorus fertility of calcareous soil Ⅱ. Inorganic and organic phosphorus Chinese Journal of Applied Ecology, 2004,15(5):790-794. (in Chinese) [本文引用: 1]
JIA LJ, LI YH, SUN BH, YANG XY . Effect of diverse soil managements on inorganic phosphorus and its fractions in a loess soil from a long-term experiment Chinese Journal of Soil Science, 2013,44(3):612-616. (in Chinese) [本文引用: 1]
AHMADM, AHMADM, HEL-NAGGARA, RAUSMANA, ABDULJABBARA, VITHANAGEM . Aging effects of organic and inorganic fertilizers on phosphorus fractionation in a calcareous sandy loam soil Pedosphere, 2018,28(6):873-883. Magsci [本文引用: 1] In most arid and semiarid soils, naturally occurring phosphorus (P) is a major yield-limiting plant nutrient. In this study, to investigate the effects of organic (OP) and inorganic P (IP) sources on P fractionation, a calcareous sandy loam alkaline soil was fertilized with OP and IP fertilizers at low (80 mg P kg<sup>-1</sup> soil) and high (160 mg P kg<sup>-1</sup> soil) application rates. Three combinations of OP and IP (<i>i.e</i>., 75% OP + 25% IP, 50% OP + 50% IP, and 25% OP + 75% IP) were applied at low and high application rates, respectively, followed by soil aging for 21 d. Soil samples were collected after 1, 2, 3, 7, and 21 d and subjected to sequential extraction to analyze soluble and exchangeable, Fe- and Al-bound, Ca-bound, and residual P fractions. The soluble and exchangeable P fraction significantly increased up to 24.3%, whereas the Ca-bound fraction decreased up to 40.7% in the soils receiving 75% OP + 25% IP and 50% OP + 50% IP, respectively, compared with the control (receiving no P fertilizer). However, the transformation of P fractions was influenced by aging time. Addition of P sources caused instant changes in different P fractions, which then tended to decline with aging time. Change in soil pH was the limiting factor in controlling P availability. At high application rate, the OP source significantly increased soil P availability compared with the IP source with soil aging. Depending on P fractionation, a proper combination of OP and IP fertilizers, as long-term slow and instant P-releasing sources for plant uptake, respectively, may be a sustainable strategy to meet crop P requirements in the arid and semiarid soils.
CHAIB, LIL, YANG SC, CHENY, WANG CB, JIANG WL . Effects of different P applications on inorganic-P components in irrigated sierozems under maize /chickpea intercropping Agricultural Research in the Arid Areas,2015, 33(1):85-90. (in Chinese) [本文引用: 1]
ZHANG YP, CHENQ, LIY, LI GS, SUNM, LIU ZH . Effect of phosphorus levels on form and bioavailability of inorganic P in plough layer of cinnamon soil in Shandong Province Chinese Agricultural Science Bulletin, 2008,24(7):245-248. (in Chinese) [本文引用: 5]
WANG HL, ZHANGM, LIU ZG, YU XJ, ZHAO HM, CHEN HN . Efferent of different phosphorus application levels on the inorganic phosphorus fraction under multi-year location experiment Journal of Soil and Water Conservation, 2018,32(5):321-327. (in Chinese) [本文引用: 2]
YANG WJ, ZHANG SL, YANG XY . Effect of long-term soil management and fertilization on storage of soil inorganic carbon and its relationship with soil organic carbon content in plough layer of manual loess soil Journal of Northwest A&F University (Natural Science Edition), 2016,44(9):74-82. (in Chinese) [本文引用: 1]
ZHANGL, WUN, WUY, LUOP, LIUL, CHEN WN . Advances in the study of soil phosphorus forms and their classification methods .Chinese Journal of Applied Ecology, 2009(7):1775-1782. (in Chinese) [本文引用: 1]
HAN XR, MA LL, WANG YQ, WANGY, ZHAN XM . Effects of long-term fertilization on inorganic phosphorus forms and profile distribution in Brown soil Journal of Soil and Water Conservation, 2007,21(4):51-55. (in Chinese) [本文引用: 2]
WANGJ, LIU WZ, MU HF, DANG TH . Inorganic phosphorus fractions and phosphorus availability in a calcareous soil receiving 21-year superphosphate application Pedosphere, 2010,20(3):304-310. DOI:10.1016/S1002-0160(10)60018-5Magsci [本文引用: 2] <h2 class="secHeading" id="section_abstract">Abstract</h2><p id="">A long-term (21-year) field experiment was performed to study the responses of soil inorganic P fractions and P availability to annual fertilizer P application in a calcareous soil on the Loess Plateau of China. Soil Olsen-P contents increased by 3.7, 5.2, 11.2 and 20.6 mg P kg<sup>−1</sup> after 21-year annual fertilizer P application at 20, 39, 59, and 79 kg P ha<sup>−1</sup>, respectively. Long-term fertilizer P addition also increased soil total P and inorganic P (Pi) contents significantly. The contents of inorganic P fractions were in the order of Ca<sub>10</sub>-P > Ca<sub>8</sub>-P > Fe-P > Al-P > occluded P > Ca<sub>2</sub>-P in the soil receiving annual fertilizer P application. Fertilizer P application increased Ca<sub>8</sub>-P, Al-P and Ca<sub>2</sub>-P contents as well as their percentages relative to Pi. Pi application increased Fe-P and occluded P contents but nor their percentages. Soil Ca<sub>10</sub>-P content remained unchanged after fertilizer P application while its percentage relative to Pi declined with increasing fertilizer P rate. All Pi fractions but Ca<sub>10</sub>-P were correlated with Olsen-P significantly. 90% of variations in Olsen-P could be explained by Pi fractions, and the direct contribution of Ca<sub>8</sub>-P was predominant. Long-term annual superphosphate application would facilitate the accumulation of soil Ca<sub>8</sub>-P, and thus improve soil P availability.</p>
GU YC, JIANG BF, LU RK . Effects of weathering on phosphorus form transformation and its availability in soil fractions Acta Pedologica Sinica, 2011,21(2):134-143. (in Chinese) [本文引用: 2]
SHEN RF, JIANG BF . Morphological distribution and availability of inorganic phosphorus in calcareous soils Acta Pedologica Sinica, 1992,29(1):80-86. (in Chinese) [本文引用: 3]
ZHANG HJ, SHI FQ, DAI JJ, WANG ZR . Inorganic phosphorus transformation in soda saline soil in Western Heilongjiang Province and its effect on available phosphorus Chinese Journal of Soil Science, 2002,33(1):39-43. (in Chinese) [本文引用: 1]
MA LM, ZHANGM, TENG YX, ZHAO JF . Characteristics of phosphorous release from soil in periodic alternately waterlogged and drained environments at WFZ of the Three Gorges Reservoir Environmental Science, 2008,29(4):1035-1039. (in Chinese) [本文引用: 1]
LV JL, ZHANG YP, TAO GS, HAN XN . Relationship among phosphorus forms in 0~100cm soil profiles after 23 year application of fertilizers Journal of Soil and Water Conservation, 2003,17(3):48-50. (in Chinese) [本文引用: 2]
JIA XY, LI JM . Study on soil phosphorus availability and its relation to the soil properties in 14 soils from different sites in China .Soil and Fertilizer Sciences in China, 2011(6):76-82. (in Chinese) [本文引用: 1]
LU YH, LIAO YL, NIEJ, ZHOUX, XIEJ, YANG ZP . Evolution of phosphorus in long-term fertilized red paddy soil and its response to phosphorus deficiency Acta Pedologica Sinica, 2017(6):161-175. (in Chinese) [本文引用: 1]
SHENP . Evolution characteristics and mechanism of soil available phosphorus in typical farmland under long-term fertilization [D]. Beijing: Chinese Academy of Agricultural Sciences, 2014. ( in Chinese) [本文引用: 1]
WU QH, ZHANG SX, ZHUP, HUANG SM, WANG BR, ZHAO LP, XU MG . Characterizing differences in the phosphorus activation coefficient of three typical cropland soils and the influencing factors under long-term fertilization PloS One, 2017,12(5):e0176437. [本文引用: 1]
WANG YZ, CHENX, SHIY , Phosphorus availability in cropland soils of China and related affecting factors Chinese Journal of Applied Ecology, 2013,24(1):260-268. (in Chinese) [本文引用: 1]