The Experts below are selected from a list of 297 Experts worldwide ranked by ideXlab platform

J A Fortin - One of the best experts on this subject based on the ideXlab platform.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L 1 of soil) and expressed as (P/Al) M-III percentage. The environmentally critical (P/Al) M III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al) M III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al) M III+ Above 15%, the model recommended 21 kg P ha ', the amount of P exported by a tuber harvest of approximately 42 Mg ha '. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al) M III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils erratum nov dec 2000 v 29 6 p 2052
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L-1 of soil) and expressed as (P/Al)M-III percentage. The environmentally critical (P/Al)M-III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al)M-III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al)M-III. Above 15%, the model recommended 21 kg P ha-1, the amount of P exported by a tuber harvest of approximately 42 Mg ha-1. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al)M-III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

Lotfi Khiari - One of the best experts on this subject based on the ideXlab platform.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L 1 of soil) and expressed as (P/Al) M-III percentage. The environmentally critical (P/Al) M III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al) M III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al) M III+ Above 15%, the model recommended 21 kg P ha ', the amount of P exported by a tuber harvest of approximately 42 Mg ha '. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al) M III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils erratum nov dec 2000 v 29 6 p 2052
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L-1 of soil) and expressed as (P/Al)M-III percentage. The environmentally critical (P/Al)M-III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al)M-III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al)M-III. Above 15%, the model recommended 21 kg P ha-1, the amount of P exported by a tuber harvest of approximately 42 Mg ha-1. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al)M-III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

Catherine Tremblay - One of the best experts on this subject based on the ideXlab platform.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L 1 of soil) and expressed as (P/Al) M-III percentage. The environmentally critical (P/Al) M III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al) M III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al) M III+ Above 15%, the model recommended 21 kg P ha ', the amount of P exported by a tuber harvest of approximately 42 Mg ha '. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al) M III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils erratum nov dec 2000 v 29 6 p 2052
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L-1 of soil) and expressed as (P/Al)M-III percentage. The environmentally critical (P/Al)M-III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al)M-III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al)M-III. Above 15%, the model recommended 21 kg P ha-1, the amount of P exported by a tuber harvest of approximately 42 Mg ha-1. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al)M-III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

R R Simard - One of the best experts on this subject based on the ideXlab platform.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L 1 of soil) and expressed as (P/Al) M-III percentage. The environmentally critical (P/Al) M III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al) M III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al) M III+ Above 15%, the model recommended 21 kg P ha ', the amount of P exported by a tuber harvest of approximately 42 Mg ha '. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al) M III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils erratum nov dec 2000 v 29 6 p 2052
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L-1 of soil) and expressed as (P/Al)M-III percentage. The environmentally critical (P/Al)M-III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al)M-III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al)M-III. Above 15%, the model recommended 21 kg P ha-1, the amount of P exported by a tuber harvest of approximately 42 Mg ha-1. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al)M-III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

A R A Alimi - One of the best experts on this subject based on the ideXlab platform.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L 1 of soil) and expressed as (P/Al) M-III percentage. The environmentally critical (P/Al) M III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al) M III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al) M III+ Above 15%, the model recommended 21 kg P ha ', the amount of P exported by a tuber harvest of approximately 42 Mg ha '. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al) M III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.

  • an agri environmental phosphorus saturation index for acid coarse textured Soils erratum nov dec 2000 v 29 6 p 2052
    Journal of Environmental Quality, 2000
    Co-Authors: Lotfi Khiari, L E Parent, Annie Pellerin, A R A Alimi, R R Simard, Catherine Tremblay, J A Fortin
    Abstract:

    Potato (Solanum tuberosum L.) is a high P demanding crop contributing to P saturation of acid Coarse-Textured Soils. The P status is commonly assessed agronomically by soil testing of P (STP) and environmentally by soil P saturation or P solubility indexes. The aim of this work was to develop a P fertilizer recommendation model integrating P environmental risk and crop response probability, using P and Al extracted by the Mehlich-III soil testing method (mg P or Al L-1 of soil) and expressed as (P/Al)M-III percentage. The environmentally critical (P/Al)M-III percentage was 15%, corresponding to the critical degree of phosphate saturation (DPS) value of 25% (oxalate extraction procedure) proposed in the Netherlands. Using the Cate-Nelson procedure, the critical (P/Al)M-III percentage across 78 field experiments was 8.2% as determined by inductively coupled-argon plasma (ICP). Probability of potato response to P was close to 100% even above the critical STP values as shown by power tests on relative yields. The P recommendation model was computed from conditional expectations of 50 and 80% within each fertility group below 15% as (P/Al)M-III. Above 15%, the model recommended 21 kg P ha-1, the amount of P exported by a tuber harvest of approximately 42 Mg ha-1. Using conversion equations with 114 soil samples for STP methods, fertility groups built for Quebec acid Coarse-Textured Soils were found to be comparable with those currently used in the Netherlands and Lower Saxony (Germany). The (P/Al)M-III percentage provided a reliable and unifying criterion for making environmentally acceptable and agronomically efficient P recommendations for sustainable potato production.