Integrated Simulation Environment

APEX-AGROTOOL: prospects in Crop Rotation Modeling

Alex TopajSergey MedvedevElena Zakharova

Workshop: “Crop growth and soil processes modeling - the use of multi-model ensembles for crop rotations

under recent and future climatic conditions” Brno, 29-30 June, 2015

Simulation software infrastructure & components

Adapter

StationaryDataBase SIAM

(MS Access, PostgreSQL…)

Web-Interface

Model AGROTOOL

SingleRunningInterface

ODB(MS Excel)

Systemof

Polyvariant AnalysisAPEX

Selector

WeatherGeneratorParameter

Identification

WeatherGenerator

AdapterAgrotool

Results

Third-partymodel

Inputdata

Results

Project AGROTOOL

Project SIAM

Project APEX Third-party model

DesktopGUI

- data flows

- control

Generic Crop Model AGROTOOL v 3.5.

I(Photosynthesis, phenological development)

II(Water regime)

III(Nitrogen regime)

IV(mineral nutrition)

V(ecology)

Limiting factors

Q, T

W, P

N, C

P, K, microelements

competition, pests, insects

Modeling domain Approach

Leaf Area Development & Light Interception

D

Light Utilization P-R

Yield Formation Y(PRT)

Crop Phenology f(T,O)

Root Distribution over Depth EXP

Stresses Involved W, N

Water Dynamics R

Evapo-transpiration PM

Soil CN-model CN, P(5)

PROJECT

Multivariate running. Full factor experimentFa

ctor

1

Factor 2

Facto

r 3

Scenario

RUN

RESULTSRESULTSДатаДата BBLEAFLEAF WWSOILSOIL EEPLANTPLANT

13/04/1113/04/11 0.120.12 22.122.1 32432414/04/1114/04/11 0.140.14 24.124.1 34534515/04/1115/04/11 0.160.16 23.423.4 355355

……

Crop Rotation AnalysisRequirement Current state

Crop model: AGROTOOL:

Generic simulator

Versatile algorithm for all maintained cultures. Calibrated models for cereals (summer and winter wheat, winter rye, barley, oats), maize, potato, root vegetables, annual and perennial forages, legumes.

«Wintering» Continuous calculation. Modified descriptions of snow melting and soil thermal regime.

Predecessor influence

Separated calculation of litter and root residues in the module of carbon-nitrogen transfer and transformation in soil. Sub-model of symbiotic nitrogen fixation and nodule nitrogen dynamics.

Simulation infrastructure: APEX:

Multiple runningValidated and implemented integrated environment for

multivariate analysis and automation of computer experiments with crop models.

Crop rotation supportSpecial plug-in for planning not full factorial experiments

and performing complex serial-parallel schemes of scenario computation.

Forecasting Built-in stochastic generator of daily weather variables that takes into account possible climate changes.

«Inherited» model variables:

Shoot litter (aboveground biomass)Root litter (belowground biomass)

Humus content in 1m. LayerTotal Mineral Nitrogen in 1m. Layer

Nodule Nitrogen (for legumes)

Calibration of AGROTOOL

Spring barley

Calibration of AGROTOOL model (2)

Winter rape

Calibration of AGROTOOL model(3)

Winter wheat

Results for Lednice

Summary humus

0

0,5

1

1,5

2

2,5

3

3,5

4

4,5

0 10 20 30 40 50 60 70 80 90

Results for Lednice (2)

Mineral nitrogen in the soil

0

20

40

60

80

100

120

140

160

0 10 20 30 40 50 60 70 80 90

Spin-up effect(“Groundhog Year” Test)

Verovany resultsHumus

0

0,5

1

1,5

2

2,5

3

3,5

4

4,5

0 20 40 60 80 100 120 140 160

CC+Fec+ResCC+FecCCCC+ResBas

Spring barley

Harvest

0

10

20

30

40

50

60

70

80

0 2 4 6 8 10 12 14 16 18 20

CC+Res

CC+Fec+Res

CC+FecCC

Bas

Maize

Урожай

0

50

100

150

200

250

300

350

400

450

500

0 2 4 6 8 10 12 14 16 18 20

CC+Res

CC+Fec+Res

CC+Fec

CC

Bas

Winter wheat 06

Harvest

0

10

20

30

40

50

60

0 2 4 6 8 10 12 14 16 18 20

CC+Res

CC+Fec+Res

CC+Fec

CC

Bas

Winter rape

Harvest

0

10

20

30

40

50

60

70

0 2 4 6 8 10 12 14 16 18 20

CC+Res

CC+Fec+Res

CC+Fec

CC

Bas

http://agrotool.ruhttp://www.rpoluektov.ru