Topic: agricultural management models - OpenAGRICOLA Search Results

Article Title:: Response of crops to limited water : understanding and modeling water stress effects on plant growth processes / L.R. Ahuja ... [et al.], editors.
Author:: Saseendran, S.A.
View in NAL's Catalog:: IND44289155
Format:: Electronic

22. Object- and pixel-based analysis for mapping crops and their agro-environmental associated measures using QuickBird imagery

Article Title:: Computers and electronics in agriculture.
Author:: Castillejo-González, Isabel Luisa
View in NAL's Catalog:: IND44239152
Format:: Electronic

23. An improved evolutionary algorithm for solving multi-objective crop planning models

Article Title:: Computers and electronics in agriculture.
Author:: Sarker, Ruhul
View in NAL's Catalog:: IND44239150
Format:: Electronic

24. Spatial optimisation of cropped swaths and field margins using GIS

Article Title:: Computers and electronics in agriculture.
Author:: de Bruin, Sytze
View in NAL's Catalog:: IND44239149
Format:: Electronic

25. Coupled modelling of sugarcane supply planning and logistics as a management tool

Article Title:: Computers and electronics in agriculture.
Author:: Le Gal, P.-Y.
View in NAL's Catalog:: IND44239147
Format:: Electronic

26. Measuring Excess Capital Capacity in Agricultural Production

Article Title:: American journal of agricultural economics.
Author:: Guan, Zhengfei
View in NAL's Catalog:: IND44216671
Format:: Electronic

27. AnnAGNPS Application and Evaluation in NE Indiana

Article Title:: Paper.
Author:: Flanagan, Dennis. C.
View in NAL's Catalog:: IND44206908
Format:: Electronic

28. Measuring Environmental Benefits of Conservation Practices: The Conservation Effects Assessment Project (CEAP)-A Model Calibration Approach at the National Level

Article Title:: Paper.
Author:: Kannan, N.
View in NAL's Catalog:: IND44203877
Format:: Electronic

29. An Approach for Estimating Water Quality Benefits of Conservation Practices at the National Level

Article Title:: Paper.
Author:: Santhi, C.
View in NAL's Catalog:: IND44203828
Format:: Electronic

30. Use of a new GIS nitrogen index assessment tool for evaluation of nitrate leaching across a Mediterranean region

Article Title:: Journal of hydrology.
Author:: Paz, Jose M. De
View in NAL's Catalog:: IND44158985
Format:: Electronic

31. Analysing farming practices to develop a numerical, operational model of farmers' decision-making processes: An irrigated hay cropping system in France

Article Title:: Agricultural systems.
Author:: Merot, A.
View in NAL's Catalog:: IND44098487
Format:: Electronic

32. Biotechnology Adoption Over Time In the Presence of Non-Pecuniary Characteristics that Directly Affect Utility: A Derived Demand Approach

Article Title:: Agbioforum.
Author:: Piggott, Nicholas E.
View in NAL's Catalog:: IND44094798
Format:: Electronic

33. Advances of Modeling Water Flow in Variably Saturated Soils with SWAP

Article Title:: Vadose zone journal VZJ.
Author:: Dam, J.C. van
View in NAL's Catalog:: IND44066363
Format:: Electronic

34. Adapting to intersectoral transfers in the Zhanghe Irrigation System, China

Article Title:: Agricultural water management.
Author:: Roost, N.
View in NAL's Catalog:: IND44061820
Format:: Electronic

35. Adapting to intersectoral transfers in the Zhanghe Irrigation System, China

Article Title:: Agricultural water management.
Author:: Roost, N.
View in NAL's Catalog:: IND44061819
Format:: Electronic

36. Modelling spring and autumn calving systems in beef herds of the Salado region of Argentina

Article Title:: Livestock science.
Author:: Romera, A.J.
View in NAL's Catalog:: IND44041014
Format:: Electronic

37. Experiment and numerical simulation of nitrogen transport in soils irrigated with treated sewage

Article Title:: Irrigation and drainage.
Author:: Yang, J.
View in NAL's Catalog:: IND44040457
Format:: Electronic

38. A Pasture-Based Model for Extended Drought Management, Long-Term Sustainability, and Economic Viability in the Southern High Plains

Article Title:: Forage and grazinglands.
Author:: Ortega-Ochoa, Carlos
View in NAL's Catalog:: IND44030806
Format:: Electronic

39. Modeling grazing in the semi-arid rangelands of Lebanon using GRASIM

Article Title:: Applied engineering in agriculture.
Author:: El-Awar, F.A.
View in NAL's Catalog:: IND44027127
Format:: Electronic

40. Evaluation of nutrient management plans using an integrated modeling approach

Article Title:: Applied engineering in agriculture.
Author:: Thomas, M.A.
View in NAL's Catalog:: IND44027110
Format:: Electronic

41. Estimating Soil Carbon in Agricultural Systems Using Ensemble Kalman Filter and DSSAT-CENTURY

Article Title:: Transactions of the ASABE.
Author:: Koo, J.
View in NAL's Catalog:: IND44027049
Format:: Electronic

42. Evaluating GPFARM Crop Growth, Soil Water, and Soil Nitrogen Components for Colorado Dryland Locations

Article Title:: Transactions of the ASABE.
Author:: Ascough, J.C. II
View in NAL's Catalog:: IND44026971
Format:: Electronic

43. Energy Balance Simulation of a Wheat Canopy Using the RZ-SHAW (RZWQM-SHAW) Model

Article Title:: Transactions of the ASABE.
Author:: Yu, Q.
View in NAL's Catalog:: IND44026958
Format:: Electronic

44. Simulating Management Effects on Phosphorus Loss from Farming Systems

Article Title:: Transactions of the ASABE.
Author:: Sedorovich, D.M.
View in NAL's Catalog:: IND44023868
Format:: Electronic

45. A river water pollution model for assessment of best management practices for livestock farming

Article Title:: Biosystems engineering.
Author:: McGechan, M.B.
View in NAL's Catalog:: IND44011479
Format:: Electronic

46. Modelling soil moisture and assessing its impacts on water sharing and crop yield for the Wadi Laba spate irrigation system, Eritrea

Article Title:: Irrigation and drainage.
Author:: Mehari, Abraham
View in NAL's Catalog:: IND44009951
Format:: Electronic

47. Modeling Nitrate-Nitrogen Losses in Response to Tile Drain Depth and Spacing

Article Title:: Paper.
Author:: Nangia, V.
View in NAL's Catalog:: IND43945008
Format:: Electronic

48. Environmental Benefits of Precision Farming - A Modeling Case Study

Article Title:: Paper.
Author:: Gowda, P.H.
View in NAL's Catalog:: IND43945005
Format:: Electronic

49. Tenants, Landlords, and Soil Conservation

Article Title:: American journal of agricultural economics.
Author:: Lichtenberg, Erik
View in NAL's Catalog:: IND43935869
Format:: Electronic

50. Climatic influence on residue decomposition prediction in the Wind Erosion Prediction System

Article Title:: Theoretical and applied climatology.
Author:: Schomberg, H.H.
View in NAL's Catalog:: IND43934546
Format:: Electronic

51. Behavioral Incentives, Equilibrium Endemic Disease, and Health Management Policy for Farmed Animals

Article Title:: American journal of agricultural economics.
Author:: Hennessy, David A.
View in NAL's Catalog:: IND43933289
Format:: Electronic

52. Comparison of Leaching Predictions Based on PRZM3.12, LEACHP, and RZWQM98 Using Standard Scenario Modeling

Article Title:: Journal of agricultural and food chemistry.
Author:: Jackson, S.H.
View in NAL's Catalog:: IND43927165
Format:: Electronic

53. Modelling optimal crop sequences using network flows

Article Title:: Agricultural systems.
Author:: Detlefsen, N.K.
View in NAL's Catalog:: IND43925546
Format:: Electronic

54. Heterogeneity of crop productivity and resource use efficiency within smallholder Kenyan farms: Soil fertility gradients or management intensity gradients

Article Title:: Agricultural systems.
Author:: Tittonell, P.
View in NAL's Catalog:: IND43925527
Format:: Electronic

55. Analysis of nitrate pollution control policies in the irrigated agriculture of Apulia Region (Southern Italy): A bio-economic modelling approach

Article Title:: Agricultural systems.
Author:: Semaan, J.
View in NAL's Catalog:: IND43925524
Format:: Electronic

56. Agricultural sector analysis on greenhouse gas mitigation in US agriculture and forestry

Article Title:: Agricultural systems.
Author:: Schneider, U.A.
View in NAL's Catalog:: IND43925504
Format:: Electronic

57. Model based nitrate TMDLs for two agricultural watersheds of southeastern Minnesota.

Article Title:: Journal of the American Water Resources Association.
Author:: Gowda, P.H.
View in NAL's Catalog:: IND43921930
Format:: Electronic

58. Governance, agricultural productivity and poverty reduction in Africa, Asia and Latin America

Article Title:: Irrigation and drainage.
Author:: Thirtle, C.
View in NAL's Catalog:: IND43921036
Format:: Electronic

59. Development of TMDL implementation plan using AnnAGNPS: A case study

Article Title:: Proceedings of the 8th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno, Nevada.
Author:: Yuan, Y.
View in NAL's Catalog:: IND43913703
Format:: Electronic

60. Model Captures the Interaction Between Agriculture and the Environment

Article Title:: Amber waves : the economics of food, farming, natural resources, and rural America.
Author:: Johansson, R.
View in NAL's Catalog:: IND43912918
Format:: Electronic

61. A comprehensive assessment of multifunctional agricultural land-use systems in Spain using a multi-dimensional evaluative model

Article Title:: Agriculture, ecosystems & environment.
Author:: Gomez Sal, A.
View in NAL's Catalog:: IND43901045
Format:: Electronic

62. Normative, positive and econometric mathematical programming as tools for incorporation of multifunctionality in agricultural policy modelling

Article Title:: Agriculture, ecosystems & environment.
Author:: Buysse, J.
View in NAL's Catalog:: IND43901043
Format:: Electronic

63. Exploring multi-scale trade-offs between nature conservation, agricultural profits and landscape quality--A methodology to support discussions on land-use perspectives

Article Title:: Agriculture, ecosystems & environment.
Author:: Groot, J.C.J.
View in NAL's Catalog:: IND43901042
Format:: Electronic

64. Integrative modelling approaches for analysis of impact of multifunctional agriculture: A review for France, Germany and The Netherlands

Article Title:: Agriculture, ecosystems & environment.
Author:: Rossing, W.A.H.
View in NAL's Catalog:: IND43901041
Format:: Electronic

65. Model analysis of grazing effect on above-ground biomass and above-ground net primary production of a Mongolian grassland ecosystem

Article Title:: Journal of hydrology.
Author:: Chen, Y.
View in NAL's Catalog:: IND43898715
Format:: Electronic

66. Distributed ecohydrological modelling to evaluate irrigation system performance in Sirsa district, India II: Impact of viable water management scenarios

Article Title:: Journal of hydrology.
Author:: Singh, R.
View in NAL's Catalog:: IND43898048
Format:: Electronic

67. Distributed ecohydrological modelling to evaluate the performance of irrigation system in Sirsa district, India: I. Current water management and its productivity

Article Title:: Journal of hydrology.
Author:: Singh, R.
View in NAL's Catalog:: IND43898046
Format:: Electronic

68. Soil organic carbon changes in dynamic land use decision models

Article Title:: Agriculture, ecosystems & environment.
Author:: Schneider, U.A.
View in NAL's Catalog:: IND43891980
Format:: Electronic

69. Fate and transport of nitrogen compounds in a cold region soil using DRAINMOD

Article Title:: Computers and electronics in agriculture.
Author:: Wang, S.
View in NAL's Catalog:: IND43886240
Format:: Electronic

70. Modelling management strategies for wheat-soybean double crops in the south-eastern Pampas

Article Title:: Field crops research.
Author:: Monzon, J.P.
View in NAL's Catalog:: IND43875929
Format:: Electronic

71. Genetic evaluation of length of productive life in the Spanish Holstein-Friesian population. Model validation and genetic parameters estimation

Article Title:: Livestock science.
Author:: Chirinos, Z.
View in NAL's Catalog:: IND43872121
Format:: Electronic

72. Review of mathematical models for sow herd management

Article Title:: Livestock science.
Author:: Pla, L.M.
View in NAL's Catalog:: IND43872119
Format:: Electronic

73. Coordination in irrigation systems: An analysis of the Lansing-Kremer model of Bali

Article Title:: Agricultural systems.
Author:: Janssen, M.A.
View in NAL's Catalog:: IND43871391
Format:: Electronic

74. Environmental impact and economic benefits of site-specific nutrient management (SSNM) in irrigated rice systems

Article Title:: Agricultural systems.
Author:: Pampolino, M.F.
View in NAL's Catalog:: IND43871369
Format:: Electronic

75. Exploring improved pesticide management in sub-tropical environments with GIS-supported fate modeling

Article Title:: Agricultural systems.
Author:: Ares, J.O.
View in NAL's Catalog:: IND43871363
Format:: Electronic

76. Exploring diversity of crop and soil management within smallholder African farms: A dynamic model for simulation of N balances and use efficiencies at field scale

Article Title:: Agricultural systems.
Author:: Tittonell, P.
View in NAL's Catalog:: IND43871352
Format:: Electronic

77. Multi-criteria policy scenario analysis for public regulation of irrigated agriculture

Article Title:: Agricultural systems.
Author:: Riesgo, L.
View in NAL's Catalog:: IND43871343
Format:: Electronic

78. An optimization model for the management of a South African game ranch

Article Title:: Agricultural systems.
Author:: Joubert, J.W.
View in NAL's Catalog:: IND43870179
Format:: Electronic

79. Community attitudes towards water management in the Moore Catchment, Western Australia

Article Title:: Agricultural systems.
Author:: Burton, M.
View in NAL's Catalog:: IND43870176
Format:: Electronic

80. Filling gaps in evapotranspiration measurements for water budget studies: Evaluation of a Kalman filtering approach

Article Title:: Agricultural and forest meteorology.
Author:: Alavi, N.
View in NAL's Catalog:: IND43864582
Format:: Electronic

81. Coexistence Rules and Regulations in the European Union

Article Title:: American journal of agricultural economics.
Author:: Beckmann, Volker
View in NAL's Catalog:: IND43853107
Format:: Electronic

82. Predicting the Supply of Ecosystem Services from Agriculture

Article Title:: American journal of agricultural economics.
Author:: Antle, John M.
View in NAL's Catalog:: IND43853101
Format:: Electronic

83. On-Farm Scheduling Studies and CERES-Maize Simulation of Irrigated Corn

Article Title:: Applied engineering in agriculture.
Author:: Dogan, E.
View in NAL's Catalog:: IND43847803
Format:: Electronic

84. Whole Farm Management to Reduce Nutrient Losses from Dairy Farms: A Simulation Study

Article Title:: Applied engineering in agriculture.
Author:: Rotz, C.A.
View in NAL's Catalog:: IND43847790
Format:: Electronic

85. Distributed hydrological modeling of total dissolved phosphorus transport in an agricultural landscape. II. Dissolved phosphorus transport

Article Title:: Hydrology and earth system sciences.
Author:: Hively, W.D.
View in NAL's Catalog:: IND43830178
Format:: Electronic

86. Disturbed hydrological modelling of total dissolved phosphorus transport in an agricultural landscape. I. Distributed runoff generation

Article Title:: Hydrology and earth system sciences.
Author:: Gerard-Marchant, P.
View in NAL's Catalog:: IND43830177
Format:: Electronic

87. The economic value of saltland pastures in a mixed farming system in Western Australia

Article Title:: Agricultural systems.
Author:: O'Connell, M.
View in NAL's Catalog:: IND43829603
Format:: Electronic

88. Individual-based models in the analysis of disease transmission in plant production chains: An application to potato brown rot

Article Title:: Agricultural systems.
Author:: Bruekers, A.
View in NAL's Catalog:: IND43827443
Format:: Electronic

89. An integrated modelling toolbox for water resources assessment and management in highland catchments: Sensitivity analysis and testing

Article Title:: Agricultural systems.
Author:: Letcher, R.A.
View in NAL's Catalog:: IND43824457
Format:: Electronic

90. An integrated modelling toolbox for water resources assessment and management in highland catchments: Model description

Article Title:: Agricultural systems.
Author:: Letcher, R.A.
View in NAL's Catalog:: IND43824455
Format:: Electronic

91. Using the mixtures-of-distributions technique for the classification of farms into representative farms

Article Title:: Agricultural systems.
Author:: Kostov, P.
View in NAL's Catalog:: IND43824445
Format:: Electronic

92. Slippage in the Conservation Reserve Program or Spurious Correlation? A Rejoinder

Article Title:: American journal of agricultural economics.
Author:: Roberts, Michael J.
View in NAL's Catalog:: IND43796239
Format:: Electronic

93. Specification and Estimation of Production Functions Involving Damage Control Inputs: A Two-Stage, Semiparametric Approach

Article Title:: American journal of agricultural economics.
Author:: Kuosmanen, Timo
View in NAL's Catalog:: IND43796238
Format:: Electronic

94. Government Payments and Farm Business Survival

Article Title:: American journal of agricultural economics.
Author:: Key, Nigel
View in NAL's Catalog:: IND43796229
Format:: Electronic

95. Drainwater management for salinity mitigation in irrigated agriculture

Article Title:: American journal of agricultural economics.
Author:: Schwabe, K.A.
View in NAL's Catalog:: IND43795641
Format:: Electronic

96. Sensitivity analyses of the nitrogen simulation model, DRAINMOD-N II

Article Title:: Transactions of the ASAE.
Author:: Wang, X.
View in NAL's Catalog:: IND43776913
Format:: Electronic

97. Sensitivity and uncertainty analyses of crop yields and soil organic carbon simulated with EPIC

Article Title:: Transactions of the ASAE.
Author:: Wang, X.
View in NAL's Catalog:: IND43726890
Format:: Electronic

98. Soil temperature under a dormant bermudagrass mulch: simulation and measurement

Article Title:: Transactions of the ASAE.
Author:: Van Donk, S.J.
View in NAL's Catalog:: IND43642223
Format:: Electronic

99. Modeling the release of phosphorus and related adsorbed chemicals from soil to overland flow

Article Title:: Modeling components of hydrologic cycle : proceedings, International Symposium on Rainfall Runoff Modeling, May 18-21, 1981, Mississippi State University / ed. V.P. Singh.
Author:: Ahuja, L.R.
View in NAL's Catalog:: IND83105823
Format:: Electronic

100. Criteria for identifying candidate yield models

View in NAL's Catalog:: CAT31026435
Format:: Electronic

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1. Modeling shows that alternative soil management can decrease greenhouse gases

2. Comparison of models of simazine transport and fate in the subsurface environment in a citrus farm

3. Epistics: A dynamic model to generate nitrogen fertilisation and irrigation schedules in apple orchards, with special attention to qualitative evaluation of the model

4. Evaluating salinity distribution in soil irrigated with saline water in arid regions of northwest China

5. Modelling agricultural expansion in Kenya's Eastern Arc Mountains biodiversity hotspot

6. APEX Model Assessment of Variable Landscapes on Runoff and Dissolved Herbicides

7. Path planning for in-field navigation-aiding of service units

8. Use of a pasture growth model to estimate herbage mass at a paddock scale and assist management on dairy farms

9. An integrated model for simulation of border-check irrigated dairy pasture production systems

10. A web-based model for simulating whole-farm beef cattle systems

11. FSSIM, a bio-economic farm model for simulating the response of EU farming systems to agricultural and environmental policies

12. A conceptual model of farmers’ informational activity: a tool for improved support of livestock farming management

13. The effects of buffer strips and bioretention facilities on agricultural productivity and environmental quality in Central Africa

14. Greening the global water system

15. 400-mile high satellite images provide groundwork for water use maps

16. A remote wireless system for water quality online monitoring in intensive fish culture

17. Balancing land use to manage river volume and salinity: Economic and hydrological consequences for the Little River catchment in Central West, New South Wales, Australia

18. DRAINMOD-N II: Evaluated for an Agricultural System in Iowa and Compared to RZWQM-DSSAT

19. Key Performance Indicators for Simulated Variable-Rate Irrigation of Variable Soils in Humid Regions

20. STEWARDS Watershed Data System: System Design and Implementation

21. Current water deficit stress simulations in selected agricultural system models

22. Object- and pixel-based analysis for mapping crops and their agro-environmental associated measures using QuickBird imagery

23. An improved evolutionary algorithm for solving multi-objective crop planning models

24. Spatial optimisation of cropped swaths and field margins using GIS

25. Coupled modelling of sugarcane supply planning and logistics as a management tool

26. Measuring Excess Capital Capacity in Agricultural Production

27. AnnAGNPS Application and Evaluation in NE Indiana

28. Measuring Environmental Benefits of Conservation Practices: The Conservation Effects Assessment Project (CEAP)-A Model Calibration Approach at the National Level

29. An Approach for Estimating Water Quality Benefits of Conservation Practices at the National Level

30. Use of a new GIS nitrogen index assessment tool for evaluation of nitrate leaching across a Mediterranean region

31. Analysing farming practices to develop a numerical, operational model of farmers' decision-making processes: An irrigated hay cropping system in France

32. Biotechnology Adoption Over Time In the Presence of Non-Pecuniary Characteristics that Directly Affect Utility: A Derived Demand Approach

33. Advances of Modeling Water Flow in Variably Saturated Soils with SWAP

34. Adapting to intersectoral transfers in the Zhanghe Irrigation System, China

35. Adapting to intersectoral transfers in the Zhanghe Irrigation System, China

36. Modelling spring and autumn calving systems in beef herds of the Salado region of Argentina

37. Experiment and numerical simulation of nitrogen transport in soils irrigated with treated sewage

38. A Pasture-Based Model for Extended Drought Management, Long-Term Sustainability, and Economic Viability in the Southern High Plains

39. Modeling grazing in the semi-arid rangelands of Lebanon using GRASIM

40. Evaluation of nutrient management plans using an integrated modeling approach

41. Estimating Soil Carbon in Agricultural Systems Using Ensemble Kalman Filter and DSSAT-CENTURY

42. Evaluating GPFARM Crop Growth, Soil Water, and Soil Nitrogen Components for Colorado Dryland Locations

43. Energy Balance Simulation of a Wheat Canopy Using the RZ-SHAW (RZWQM-SHAW) Model

44. Simulating Management Effects on Phosphorus Loss from Farming Systems

45. A river water pollution model for assessment of best management practices for livestock farming

46. Modelling soil moisture and assessing its impacts on water sharing and crop yield for the Wadi Laba spate irrigation system, Eritrea

47. Modeling Nitrate-Nitrogen Losses in Response to Tile Drain Depth and Spacing

48. Environmental Benefits of Precision Farming - A Modeling Case Study

49. Tenants, Landlords, and Soil Conservation

50. Climatic influence on residue decomposition prediction in the Wind Erosion Prediction System

51. Behavioral Incentives, Equilibrium Endemic Disease, and Health Management Policy for Farmed Animals

52. Comparison of Leaching Predictions Based on PRZM3.12, LEACHP, and RZWQM98 Using Standard Scenario Modeling

53. Modelling optimal crop sequences using network flows

54. Heterogeneity of crop productivity and resource use efficiency within smallholder Kenyan farms: Soil fertility gradients or management intensity gradients

55. Analysis of nitrate pollution control policies in the irrigated agriculture of Apulia Region (Southern Italy): A bio-economic modelling approach

56. Agricultural sector analysis on greenhouse gas mitigation in US agriculture and forestry

57. Model based nitrate TMDLs for two agricultural watersheds of southeastern Minnesota.

58. Governance, agricultural productivity and poverty reduction in Africa, Asia and Latin America

59. Development of TMDL implementation plan using AnnAGNPS: A case study

60. Model Captures the Interaction Between Agriculture and the Environment

61. A comprehensive assessment of multifunctional agricultural land-use systems in Spain using a multi-dimensional evaluative model

62. Normative, positive and econometric mathematical programming as tools for incorporation of multifunctionality in agricultural policy modelling

63. Exploring multi-scale trade-offs between nature conservation, agricultural profits and landscape quality--A methodology to support discussions on land-use perspectives

64. Integrative modelling approaches for analysis of impact of multifunctional agriculture: A review for France, Germany and The Netherlands

65. Model analysis of grazing effect on above-ground biomass and above-ground net primary production of a Mongolian grassland ecosystem

66. Distributed ecohydrological modelling to evaluate irrigation system performance in Sirsa district, India II: Impact of viable water management scenarios

67. Distributed ecohydrological modelling to evaluate the performance of irrigation system in Sirsa district, India: I. Current water management and its productivity

68. Soil organic carbon changes in dynamic land use decision models

69. Fate and transport of nitrogen compounds in a cold region soil using DRAINMOD

70. Modelling management strategies for wheat-soybean double crops in the south-eastern Pampas

71. Genetic evaluation of length of productive life in the Spanish Holstein-Friesian population. Model validation and genetic parameters estimation