Internal and External Phosphorus Requirements of Maize Genotypes on Typic Calciargid
External and internal phosphorus (P) requirements of hybrid maize (FHY-396) and indigenous variety (EV-7004) were compared on a Typic Calciargid soil. A sorption isotherm was constructed by equilibrating 2.5 g soil with 25 mL of a 0.01 M calcium chloride (CaCl2) solution containing 2, 3, 6, 12, 25,...
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| Veröffentlicht in: | Communications in Soil Science and Plant Analysis 2011-01, Vol.42 (1-4), p.184-193 |
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| creator | Sattar, Saba Maqsood, Muhammad Aamer Hussain, Shahid Rahmatullah |
| description | External and internal phosphorus (P) requirements of hybrid maize (FHY-396) and indigenous variety (EV-7004) were compared on a Typic Calciargid soil. A sorption isotherm was constructed by equilibrating 2.5 g soil with 25 mL of a 0.01 M calcium chloride (CaCl2) solution containing 2, 3, 6, 12, 25, 50, and 100 mg P L-1. Sorption data were fitted to a modified Freundlich equation [x/m = Kf(EPC)1/n] to compute P rates (0, 30, 60, and 120 mg kg-1 soil) against solution levels (0, 0.09, 0.26, and 0.76 mg P L-1) for a pot study. Applied P significantly increased shoot dry matter, P concentration, and P uptake in both the genotypes. For optimum shoot growth, internal P requirement of hybrid (2.51 mg g-1) was 5% more than variety (2.39 mg g-1). However, external P requirement of hybrid (0.50 mg L-1) was remarkably more than variety (0.19 mg L-1). This strongly advocated greater P rates for the high-yielding hybrid than for the variety. |
| doi_str_mv | 10.1080/00103624.2011.535069 |
| format | Article |
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A sorption isotherm was constructed by equilibrating 2.5 g soil with 25 mL of a 0.01 M calcium chloride (CaCl2) solution containing 2, 3, 6, 12, 25, 50, and 100 mg P L-1. Sorption data were fitted to a modified Freundlich equation [x/m = Kf(EPC)1/n] to compute P rates (0, 30, 60, and 120 mg kg-1 soil) against solution levels (0, 0.09, 0.26, and 0.76 mg P L-1) for a pot study. Applied P significantly increased shoot dry matter, P concentration, and P uptake in both the genotypes. For optimum shoot growth, internal P requirement of hybrid (2.51 mg g-1) was 5% more than variety (2.39 mg g-1). However, external P requirement of hybrid (0.50 mg L-1) was remarkably more than variety (0.19 mg L-1). This strongly advocated greater P rates for the high-yielding hybrid than for the variety.</description><identifier>ISSN: 0010-3624</identifier><identifier>EISSN: 1532-2416</identifier><identifier>EISSN: 1532-4133</identifier><identifier>DOI: 10.1080/00103624.2011.535069</identifier><identifier>CODEN: CSOSA2</identifier><language>eng</language><publisher>Philadelphia, PA: Taylor & Francis Group</publisher><subject>Agronomy. Soil science and plant productions ; Biological and medical sciences ; Calcareous soil ; Calciargids ; calcium chloride ; corn ; external P requirement ; Freundlich model ; Fundamental and applied biological sciences. 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A sorption isotherm was constructed by equilibrating 2.5 g soil with 25 mL of a 0.01 M calcium chloride (CaCl2) solution containing 2, 3, 6, 12, 25, 50, and 100 mg P L-1. Sorption data were fitted to a modified Freundlich equation [x/m = Kf(EPC)1/n] to compute P rates (0, 30, 60, and 120 mg kg-1 soil) against solution levels (0, 0.09, 0.26, and 0.76 mg P L-1) for a pot study. Applied P significantly increased shoot dry matter, P concentration, and P uptake in both the genotypes. For optimum shoot growth, internal P requirement of hybrid (2.51 mg g-1) was 5% more than variety (2.39 mg g-1). However, external P requirement of hybrid (0.50 mg L-1) was remarkably more than variety (0.19 mg L-1). This strongly advocated greater P rates for the high-yielding hybrid than for the variety.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Calcareous soil</subject><subject>Calciargids</subject><subject>calcium chloride</subject><subject>corn</subject><subject>external P requirement</subject><subject>Freundlich model</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>genotype</subject><subject>hybrids</subject><subject>internal P requirement</subject><subject>maize genotypes</subject><subject>P sorption</subject><subject>phosphorus</subject><subject>shoots</subject><subject>sorption isotherms</subject><issn>0010-3624</issn><issn>1532-2416</issn><issn>1532-4133</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkF9LwzAUxYMoOKffQLAIPnbmT9O0TyJjTkFRdHsON2miHV1Tkw6dn96Wbr76dDmX3zn3chA6J3hCcIavMSaYpTSZUEzIhDOO0_wAjQhnNKYJSQ_RqEfinjlGJyGsOpkLTEdo8VC3xtdQRVAX0ex7J14-XGg-nN-E6NV8bkpv1qZuQ-Rs9ATlj4nmpnbttjHdqo4W26bU0RQqXYJ_L4tTdGShCuZsN8doeTdbTO_jx-f5w_T2MdYJT9pYUAHCaFAWgFGT4lQRxUzBc52pLDfEEqtYkRFlBRegCFCmCkV6XOSg2RhdDrmNd58bE1q5cpv-_yAznmJORUo7KBkg7V0I3ljZ-HINfisJln19cl-f7OuTQ32d7WqXDUFDZT3Uugx_XspyntIcd9zNwJW1dX4NX85XhWxhWzm_N7F_Ll0MCRachHffGZZvHZBgjPNEZIL9ArHWjZ0</recordid><startdate>20110110</startdate><enddate>20110110</enddate><creator>Sattar, Saba</creator><creator>Maqsood, Muhammad Aamer</creator><creator>Hussain, Shahid</creator><creator>Rahmatullah</creator><general>Taylor & Francis Group</general><general>Taylor & Francis</general><general>Taylor & Francis Ltd</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7ST</scope><scope>7T7</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>L.G</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20110110</creationdate><title>Internal and External Phosphorus Requirements of Maize Genotypes on Typic Calciargid</title><author>Sattar, Saba ; Maqsood, Muhammad Aamer ; Hussain, Shahid ; Rahmatullah</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c454t-727a7ecabfaa32e606b1b3ed59c8b89e1f1fb3d81bf757ab1a23bdb1faa379ac3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Biological and medical sciences</topic><topic>Calcareous soil</topic><topic>Calciargids</topic><topic>calcium chloride</topic><topic>corn</topic><topic>external P requirement</topic><topic>Freundlich model</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>genotype</topic><topic>hybrids</topic><topic>internal P requirement</topic><topic>maize genotypes</topic><topic>P sorption</topic><topic>phosphorus</topic><topic>shoots</topic><topic>sorption isotherms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sattar, Saba</creatorcontrib><creatorcontrib>Maqsood, Muhammad Aamer</creatorcontrib><creatorcontrib>Hussain, Shahid</creatorcontrib><creatorcontrib>Rahmatullah</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Communications in Soil Science and Plant Analysis</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sattar, Saba</au><au>Maqsood, Muhammad Aamer</au><au>Hussain, Shahid</au><au>Rahmatullah</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Internal and External Phosphorus Requirements of Maize Genotypes on Typic Calciargid</atitle><jtitle>Communications in Soil Science and Plant Analysis</jtitle><date>2011-01-10</date><risdate>2011</risdate><volume>42</volume><issue>1-4</issue><spage>184</spage><epage>193</epage><pages>184-193</pages><issn>0010-3624</issn><eissn>1532-2416</eissn><eissn>1532-4133</eissn><coden>CSOSA2</coden><abstract>External and internal phosphorus (P) requirements of hybrid maize (FHY-396) and indigenous variety (EV-7004) were compared on a Typic Calciargid soil. A sorption isotherm was constructed by equilibrating 2.5 g soil with 25 mL of a 0.01 M calcium chloride (CaCl2) solution containing 2, 3, 6, 12, 25, 50, and 100 mg P L-1. Sorption data were fitted to a modified Freundlich equation [x/m = Kf(EPC)1/n] to compute P rates (0, 30, 60, and 120 mg kg-1 soil) against solution levels (0, 0.09, 0.26, and 0.76 mg P L-1) for a pot study. Applied P significantly increased shoot dry matter, P concentration, and P uptake in both the genotypes. For optimum shoot growth, internal P requirement of hybrid (2.51 mg g-1) was 5% more than variety (2.39 mg g-1). However, external P requirement of hybrid (0.50 mg L-1) was remarkably more than variety (0.19 mg L-1). This strongly advocated greater P rates for the high-yielding hybrid than for the variety.</abstract><cop>Philadelphia, PA</cop><pub>Taylor & Francis Group</pub><doi>10.1080/00103624.2011.535069</doi><tpages>10</tpages></addata></record> |
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| subjects | Agronomy. Soil science and plant productions Biological and medical sciences Calcareous soil Calciargids calcium chloride corn external P requirement Freundlich model Fundamental and applied biological sciences. Psychology genotype hybrids internal P requirement maize genotypes P sorption phosphorus shoots sorption isotherms |
| title | Internal and External Phosphorus Requirements of Maize Genotypes on Typic Calciargid |
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