PLSpringBarleySpr.cpp

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/*
*******************************************************************************************************
Copyright (c) 2017, Christopher John Topping, Aarhus University
All rights reserved.
 
Redistribution and use in source and binary forms, with or without modification, are permitted provided
that the following conditions are met:
 
Redistributions of source code must retain the above copyright notice, this list of conditions and the
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the following disclaimer in the documentation and/or other materials provided with the distribution.
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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*/
//
// PLSpringBarleySpr.cpp
//
 
 
#include "../../Landscape/ls.h"
#include "../../Landscape/cropprogs/PLSpringBarleySpr.h"
 
// Some things that are defined externally - in this case these variables allow
// scaling of the percentage application figures for insecticides, herbicides etc..
extern CfgBool cfg_pest_springbarley_on;
// check if below are needed
extern CfgFloat l_pest_insecticide_amount;
extern CfgInt   cfg_SBS_InsecticideDay;
extern CfgInt   cfg_SBS_InsecticideMonth;
extern CfgFloat cfg_pest_product_1_amount;
 
 
bool PLSpringBarleySpr::Do(Farm *a_farm, LE *a_field, FarmEvent *a_ev)
{
    bool done = false; // The boolean value done indicates when we are totally finished with this plan (i.e. it is set to true).
    int d1 = 0;
    // Depending what event has occured jump to the correct bit of code
    switch (a_ev->m_todo)
    {
    case pl_sbs_start:
    {
        // pl_sbs_start just sets up all the starting conditions and reference dates that are needed to start a pl_sb
        PL_SBS_SPRING_FERTI = 0;
        PL_SBS_DECIDE_TO_GR = false;
 
        // Set up the date management stuff
        // The next bit of code just allows for altering dates after harvest if it is necessary
        // to allow for a crop which starts its management early.
 
        // 5 start and stop dates for all 'movable' events for this crop
        int noDates = 4;
        a_field->SetMDates(0, 0, g_date->DayInYear(15, 8)); // last possible day of harvest
        a_field->SetMDates(1, 0, g_date->DayInYear(20, 8)); // last possible day of starw chopping, equal to harvest in this case
        a_field->SetMDates(0, 1, 0); // start day of hay bailing (not used as it depend on previous treatment)
        a_field->SetMDates(1, 1, g_date->DayInYear(25, 8)); // end day of hay bailing
        a_field->SetMDates(0, 2, 0); // start day of RSM
        a_field->SetMDates(1, 2, g_date->DayInYear(25, 8)); // end day of RSM
        a_field->SetMDates(0, 3, 0); // start day of calcium application
        a_field->SetMDates(1, 3, g_date->DayInYear(25, 8)); // end day of calcium application
                                                            // Can be up to 10 of these. If the shortening code is triggered
                                                            // then these will be reduced in value to 0
 
        a_field->SetMConstants(0, 1);
 
        // Check the next crop for early start, unless it is a spring crop
        // in which case we ASSUME that no checking is necessary!!!!
        // So DO NOT implement a crop that runs over the year boundary (i.e. from spring to spring!), at least not without fixing this.
 
        //new if: do the check only for non-optimising farms and if year>0. (030713 - m_rotation used only in the hidden year, so I modified the condition from >7 to >0)
        //optimising farms not used for now so most of related code is removed (but not in 'start' case)
        if (!(a_farm->GetType() == tof_OptimisingFarm && g_date->GetYearNumber() > 0)) {
 
            if (a_ev->m_startday > g_date->DayInYear(1, 7)) {
                if (a_field->GetMDates(0, 0) >= a_ev->m_startday)
                {
                    g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): ", "Harvest too late for the next crop to start!!!");
                    int almassnum = g_landscape_p->BackTranslateVegTypes(a_ev->m_next_tov);
                    g_msg->Warn("Next Crop ", (double)almassnum); // this causes exit
                }
                // Now fix any late finishing problems
                for (int i = 0; i < noDates; i++) {
                    if (a_field->GetMDates(0, i) >= a_ev->m_startday) {
                        a_field->SetMDates(0, i, a_ev->m_startday - 1); //move the starting date
                    }
                    if (a_field->GetMDates(1, i) >= a_ev->m_startday) {
                        a_field->SetMConstants(i, 0); //change the default value of the MConst (=1) to 0 (necessary to correctly execute farm events in case the finishing date (MDate) was moved)
                        a_field->SetMDates(1, i, a_ev->m_startday - 1); //move the finishing date
                    }
                }
            }
            // Now no operations can be timed after the start of the next crop.
 
            if (!a_ev->m_first_year) {
                int today = g_date->Date();
                d1 = g_date->OldDays() + m_first_date + 365; // Add 365 for spring crop
                if (today > d1) {
                    // Yes too late - should not happen - raise an error
                    g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): " "Crop start attempt after last possible start date", "");
                    exit(1);
                }
            }
            else {
                SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 3), pl_sbs_spring_plough, false, a_farm, a_field);
                break;
            }
        }//if
 
         // End single block date checking code. Please see next line
         // comment as well.
         // Reinit d1 to first possible starting date.
        d1 = g_date->OldDays() + 365 + g_date->DayInYear(1, 3);
        // OK, let's go.
        SimpleEvent_(d1, pl_sbs_spring_plough, false, a_farm, a_field);
        break;
    }
    break;
 
    // This is the first real farm operation
    case pl_sbs_spring_plough:
        if (!a_farm->SpringPlough(a_field, 0.0, g_date->DayInYear(25, 3) - g_date->DayInYear())) {
            SimpleEvent_(g_date->Date() + 1, pl_sbs_spring_plough, true, a_farm, a_field);
            break;
        }
        SimpleEvent_(g_date->Date() + 1, pl_sbs_spring_harrow, false, a_farm, a_field);
        break;
    case pl_sbs_spring_harrow:
        if (!a_farm->SpringHarrow(a_field, 0.0, g_date->DayInYear(25, 3) - g_date->DayInYear())) {
            SimpleEvent_(g_date->Date() + 1, pl_sbs_spring_harrow, true, a_farm, a_field);
            break;
        }
        d1 = g_date->Date() + 1;
        if (d1 < g_date->OldDays() + g_date->DayInYear(10, 3)) {
            d1 = g_date->OldDays() + g_date->DayInYear(10, 3);
        }
        if (a_farm->IsStockFarmer()) //Stock Farmer
        {
            SimpleEvent_(d1, pl_sbs_ferti_s1, false, a_farm, a_field);
        }
        else SimpleEvent_(d1, pl_sbs_ferti_p1, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_p1:
        if (a_ev->m_lock || a_farm->DoIt(88))
        {
            if (!a_farm->FP_NPK(a_field, 0.0, g_date->DayInYear(30, 3) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_p1, true, a_farm, a_field);
                break;
            }
            PL_SBS_SPRING_FERTI = true;
        }
        SimpleEvent_(g_date->Date() + 1, pl_sbs_heavy_cultivator, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_s1:
        if (a_ev->m_lock || a_farm->DoIt(88))
        {
            if (!a_farm->FA_NPK(a_field, 0.0, g_date->DayInYear(30, 3) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_s1, true, a_farm, a_field);
                break;
            }
            PL_SBS_SPRING_FERTI = 1;
        }
        SimpleEvent_(g_date->Date() + 1, pl_sbs_heavy_cultivator, false, a_farm, a_field);
        break;
    case pl_sbs_heavy_cultivator:
        if (PL_SBS_SPRING_FERTI == 1)
        {
            if (!a_farm->HeavyCultivatorAggregate(a_field, 0.0, g_date->DayInYear(30, 3) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_heavy_cultivator, true, a_farm, a_field);
                break;
            }
        }
        d1 = g_date->Date() + 1;
        if (d1 < g_date->OldDays() + g_date->DayInYear(20, 3)) {
            d1 = g_date->OldDays() + g_date->DayInYear(20, 3);
        }
        SimpleEvent_(d1, pl_sbs_preseeding_cultivator, false, a_farm, a_field);
        break;
    case pl_sbs_preseeding_cultivator:
        // 20% will do preseeding cultivation, the rest will do it together with sow
        if (a_ev->m_lock || a_farm->DoIt(20))
        {
            if (!a_farm->PreseedingCultivator(a_field, 0.0, g_date->DayInYear(9, 4) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_preseeding_cultivator, true, a_farm, a_field);
                break;
            }
            SimpleEvent_(g_date->Date() + 1, pl_sbs_spring_sow, false, a_farm, a_field);
            break;
        }
        SimpleEvent_(g_date->Date() + 1, pl_sbs_preseeding_cultivator_sow, false, a_farm, a_field);
        break;
    case pl_sbs_spring_sow:
        if (!a_farm->SpringSow(a_field, 0.0, g_date->DayInYear(10, 4) - g_date->DayInYear())) {
            SimpleEvent_(g_date->Date() + 1, pl_sbs_spring_sow, true, a_farm, a_field);
            break;
        }
        // Here is a fork leading to four parallel events
        SimpleEvent_(g_date->OldDays() + g_date->DayInYear(10, 4), pl_sbs_herbicide1, false, a_farm, a_field); // Herbidide thread
        SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_fungicide1, false, a_farm, a_field);   // Fungicide thread
        SimpleEvent_(g_date->OldDays() + g_date->DayInYear(15, 5), pl_sbs_insecticide1, false, a_farm, a_field);    // Insecticide thread = MAIN THREAD
        if (a_farm->IsStockFarmer()) //Stock Farmer                 // N thread
        {
            SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_s2, false, a_farm, a_field);
        }
        else SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_p2, false, a_farm, a_field);
        if (a_farm->IsStockFarmer()) //Stock Farmer                 // Microelemnts thread
        {
            SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_s3, false, a_farm, a_field);
        }
        else SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_p3, false, a_farm, a_field);
        break;
    case pl_sbs_preseeding_cultivator_sow:
        // 80% will do preseeding cultivation with sow
        if (!a_farm->PreseedingCultivatorSow(a_field, 0.0, g_date->DayInYear(10, 4) - g_date->DayInYear())) {
            SimpleEvent_(g_date->Date() + 1, pl_sbs_preseeding_cultivator_sow, true, a_farm, a_field);
            break;
        }
        // Here is a fork leading to four parallel events
        SimpleEvent_(g_date->OldDays() + g_date->DayInYear(10, 4), pl_sbs_herbicide1, false, a_farm, a_field); // Herbidide thread
        SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_fungicide1, false, a_farm, a_field);   // Fungicide thread
        SimpleEvent_(g_date->OldDays() + g_date->DayInYear(15, 5), pl_sbs_insecticide1, false, a_farm, a_field);    // Insecticide thread = MAIN THREAD
        if (a_farm->IsStockFarmer()) //Stock Farmer                 // N thread
        {
            SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_s2, false, a_farm, a_field);
        }
        else SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_p2, false, a_farm, a_field);
        if (a_farm->IsStockFarmer()) //Stock Farmer                 // Microelemnts thread
        {
            SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_s3, false, a_farm, a_field);
        }
        else SimpleEvent_(g_date->OldDays() + g_date->DayInYear(1, 5), pl_sbs_ferti_p3, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_p2:
        // Here comes N thread
        if (!a_farm->FP_AmmoniumSulphate(a_field, 0.0, g_date->DayInYear(30, 5) - g_date->DayInYear())) {
            SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_p2, true, a_farm, a_field);
            break;
        }
        // End of thread
        break;
    case pl_sbs_ferti_s2:
        if (!a_farm->FA_AmmoniumSulphate(a_field, 0.0, g_date->DayInYear(30, 5) - g_date->DayInYear())) {
            SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_s2, true, a_farm, a_field);
            break;
        }
        // End of thread
        break;
    case pl_sbs_ferti_p3:
        // Here comes the mickroelements thread
        if (a_ev->m_lock || a_farm->DoIt(43))
        {
            if (!a_farm->FP_ManganeseSulphate(a_field, 0.0, g_date->DayInYear(30, 5) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_p3, true, a_farm, a_field);
                break;
            }
        }
        d1 = g_date->Date() + 14;
        if (d1 < g_date->OldDays() + g_date->DayInYear(25, 5)) {
            d1 = g_date->OldDays() + g_date->DayInYear(25, 5);
        }
        SimpleEvent_(d1, pl_sbs_ferti_p4, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_s3:
        if (a_ev->m_lock || a_farm->DoIt(43))
        {
            if (!a_farm->FA_ManganeseSulphate(a_field, 0.0, g_date->DayInYear(30, 5) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_s3, true, a_farm, a_field);
                break;
            }
        }
        d1 = g_date->Date() + 14;
        if (d1 < g_date->OldDays() + g_date->DayInYear(25, 5)) {
            d1 = g_date->OldDays() + g_date->DayInYear(25, 5);
        }
        SimpleEvent_(d1, pl_sbs_ferti_s4, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_p4:
        if (a_ev->m_lock || a_farm->DoIt(3))
        {
            if (!a_farm->FP_ManganeseSulphate(a_field, 0.0, g_date->DayInYear(10, 6) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_p4, true, a_farm, a_field);
                break;
            }
        }
        // End of thread
        break;
    case pl_sbs_ferti_s4:
        if (a_ev->m_lock || a_farm->DoIt(3))
        {
            if (!a_farm->FA_ManganeseSulphate(a_field, 0.0, g_date->DayInYear(10, 6) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_s4, true, a_farm, a_field);
                break;
            }
        }
        // End of thread
        break;
    case pl_sbs_herbicide1: // The first of the pesticide managements.
                           // Here comes the herbicide thread
        if (a_ev->m_lock || a_farm->DoIt(97))
        {
            if (a_field->GetGreenBiomass() <= 0) {
                SimpleEvent_(g_date->Date() + 5, pl_sbs_herbicide1, true, a_farm, a_field);
            }
            else
            {
                if (!a_farm->HerbicideTreat(a_field, 0.0, g_date->DayInYear(10, 5) - g_date->DayInYear())) {
                    SimpleEvent_(g_date->Date() + 1, pl_sbs_herbicide1, true, a_farm, a_field);
                    break;
                }
            }
        }
        // End of thread
        break;
    case pl_sbs_fungicide1:
        // Here comes the fungicide thread
        if (a_ev->m_lock || a_farm->DoIt(83))
        {
            if (!a_farm->FungicideTreat(a_field, 0.0, g_date->DayInYear(15, 6) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_fungicide1, true, a_farm, a_field);
                break;
            }
        }
        SimpleEvent_(g_date->Date() + 14, pl_sbs_fungicide2, false, a_farm, a_field);
        break;
    case pl_sbs_fungicide2:
        if (a_ev->m_lock || a_farm->DoIt(23))
        {
            if (!a_farm->FungicideTreat(a_field, 0.0, g_date->DayInYear(15, 6) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_fungicide2, true, a_farm, a_field);
                break;
            }
        }
        d1 = g_date->Date() + 14;
        if (d1 < g_date->OldDays() + g_date->DayInYear(20, 5)) {
            d1 = g_date->OldDays() + g_date->DayInYear(20, 5);
        }
        SimpleEvent_(d1, pl_sbs_fungicide3, false, a_farm, a_field);
        break;
    case pl_sbs_fungicide3:
        if (a_ev->m_lock || a_farm->DoIt(4))
        {
            if (!a_farm->FungicideTreat(a_field, 0.0, g_date->DayInYear(20, 6) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_fungicide3, true, a_farm, a_field);
                break;
            }
        }
        // End of thread
        break;
    case pl_sbs_insecticide1:
        // Here comes the insecticide thread = MAIN THREAD
        if (a_ev->m_lock || a_farm->DoIt(65))
        {
            // here we check wheter we are using ERA pesticide or not
            if (!cfg_pest_springbarley_on.value() ||
                !g_landscape_p->SupplyShouldSpray()) // Not using pesticide spray
            {
                if (!a_farm->InsecticideTreat(a_field, 0.0, g_date->DayInYear(15, 6) - g_date->DayInYear())) {
                    SimpleEvent_(g_date->Date() + 1, pl_sbs_insecticide1, true, a_farm, a_field);
                    break;
                }
            }
            else {
                a_farm->ProductApplication(a_field, 0.0, 0, cfg_pest_product_1_amount.value(), ppp_1);
            }
        }
        SimpleEvent_(g_date->Date() + 14, pl_sbs_insecticide2, false, a_farm, a_field);
        break;
    case pl_sbs_insecticide2:
        if (a_ev->m_lock || a_farm->DoIt(46))
        {
            // here we check wheter we are using ERA pesticide or not
            if (!cfg_pest_springbarley_on.value() ||
                !g_landscape_p->SupplyShouldSpray()) // Not using pesticide spray
            {
                if (!a_farm->InsecticideTreat(a_field, 0.0, g_date->DayInYear(30, 6) - g_date->DayInYear())) {
                    SimpleEvent_(g_date->Date() + 1, pl_sbs_insecticide2, true, a_farm, a_field);
                    break;
                }
            }
            else {
                a_farm->ProductApplication(a_field, 0.0, 0, cfg_pest_product_1_amount.value(), ppp_1);
            }
        }
        SimpleEvent_(g_date->OldDays() + g_date->DayInYear(20, 7), pl_sbs_harvest, false, a_farm, a_field);
        break;
    case pl_sbs_harvest:
        // Here the MAIN thread continues
        // We don't move harvest days
        if (!a_farm->Harvest(a_field, 0.0, a_field->GetMDates(0, 0) - g_date->DayInYear())) {
            SimpleEvent_(g_date->Date() + 1, pl_sbs_harvest, true, a_farm, a_field);
            break;
        }
        SimpleEvent_(g_date->Date() + 1, pl_sbs_straw_chopping, false, a_farm, a_field);
        break;
    case pl_sbs_straw_chopping:
        if (a_farm->IsStockFarmer()) //Stock Farmer
        {
            // 10% of stock farmers will do straw chopping, but rest will do hay bailing instead
            if (a_ev->m_lock || a_farm->DoIt(10))
            {
                if (a_field->GetMConstants(0) == 0) {
                    if (!a_farm->StrawChopping(a_field, 0.0, -1)) { // raise an error
                        g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): failure in 'StrawChopping' execution", "");
                        exit(1);
                    }
                }
                else {
                    if (!a_farm->StrawChopping(a_field, 0.0, a_field->GetMDates(1, 0) - g_date->DayInYear())) {
                        SimpleEvent_(g_date->Date() + 1, pl_sbs_straw_chopping, true, a_farm, a_field);
                        break;
                    }
                    else
                    {
                        // Queue up the next event
                        SimpleEvent_(g_date->Date(), pl_sbs_ferti_s5, false, a_farm, a_field);
                        break;
                    }
                }
 
            }
            SimpleEvent_(g_date->Date() + 1, pl_sbs_hay_bailing, false, a_farm, a_field);
            break;
        }
        else
        {
            // 90% of arable farmers will do straw chopping, but rest will do hay bailing instead
            if (a_ev->m_lock || a_farm->DoIt(90))
            {
                if (a_field->GetMConstants(0) == 0) {
                    if (!a_farm->StrawChopping(a_field, 0.0, -1)) { // raise an error
                        g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): failure in 'StrawChopping' execution", "");
                        exit(1);
                    }
                }
                else {
                    if (!a_farm->StrawChopping(a_field, 0.0, a_field->GetMDates(1, 0) - g_date->DayInYear())) {
                        SimpleEvent_(g_date->Date() + 1, pl_sbs_straw_chopping, true, a_farm, a_field);
                        break;
                    }
                    else
                    {
                        // Queue up the next event
                        SimpleEvent_(g_date->Date(), pl_sbs_ferti_p5, false, a_farm, a_field);
                        break;
                    }
                }
 
            }
            SimpleEvent_(g_date->Date() + 1, pl_sbs_hay_bailing, false, a_farm, a_field);
            break;
        }
    case pl_sbs_hay_bailing:
        if (a_field->GetMConstants(1) == 0) {
            if (!a_farm->HayBailing(a_field, 0.0, -1)) { // raise an error
                g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): failure in 'HayBailing' execution", "");
                exit(1);
            }
        }
        else {
            if (!a_farm->HayBailing(a_field, 0.0, a_field->GetMDates(1, 1) - g_date->DayInYear())) {
                SimpleEvent_(g_date->Date() + 1, pl_sbs_hay_bailing, true, a_farm, a_field);
                break;
            }
        }
        if (a_farm->IsStockFarmer()) //Stock Farmer
        {
            SimpleEvent_(g_date->Date(), pl_sbs_ferti_s6, false, a_farm, a_field);
        }
        else SimpleEvent_(g_date->Date(), pl_sbs_ferti_p6, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_p5:
        if (a_ev->m_lock || a_farm->DoIt(18))
        {
            if (a_field->GetMConstants(2) == 0) {
                if (!a_farm->FP_RSM(a_field, 0.0, -1)) { // raise an error
                    g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): failure in 'FP_RSM' execution", "");
                    exit(1);
                }
            }
            else {
                if (!a_farm->FP_RSM(a_field, 0.0, a_field->GetMDates(1, 2) - g_date->DayInYear())) {
                    SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_p5, true, a_farm, a_field);
                    break;
                }
            }
        }
        if (a_farm->IsStockFarmer()) //Stock Farmer
        {
            SimpleEvent_(g_date->Date(), pl_sbs_ferti_s6, false, a_farm, a_field);
        }
        else SimpleEvent_(g_date->Date(), pl_sbs_ferti_p6, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_s5:
        if (a_ev->m_lock || a_farm->DoIt(18))
        {
            if (a_field->GetMConstants(2) == 0) {
                if (!a_farm->FA_RSM(a_field, 0.0, -1)) { // raise an error
                    g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): failure in 'FA_RSM' execution", "");
                    exit(1);
                }
            }
            else {
                if (!a_farm->FA_RSM(a_field, 0.0, a_field->GetMDates(1, 2) - g_date->DayInYear())) {
                    SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_s5, true, a_farm, a_field);
                    break;
                }
            }
        }
        if (a_farm->IsStockFarmer()) //Stock Farmer
        {
            SimpleEvent_(g_date->Date(), pl_sbs_ferti_s6, false, a_farm, a_field);
        }
        else SimpleEvent_(g_date->Date(), pl_sbs_ferti_p6, false, a_farm, a_field);
        break;
    case pl_sbs_ferti_p6:
        if (a_ev->m_lock || a_farm->DoIt(23))
        {
            if (a_field->GetMConstants(3) == 0) {
                if (!a_farm->FP_Calcium(a_field, 0.0, -1)) { // raise an error
                    g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): failure in 'FP_Calcium' execution", "");
                    exit(1);
                }
            }
            else {
                if (!a_farm->FP_Calcium(a_field, 0.0, a_field->GetMDates(1, 3) - g_date->DayInYear())) {
                    SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_p6, true, a_farm, a_field);
                    break;
                }
            }
        }
        done = true;
        // So we are done, and somwhere else the farmer will queue up the start event of the next crop
        // END of MAIN THREAD
        break;
    case pl_sbs_ferti_s6:
        if (a_ev->m_lock || a_farm->DoIt(23))
        {
            if (a_field->GetMConstants(3) == 0) {
                if (!a_farm->FA_Calcium(a_field, 0.0, -1)) { // raise an error
                    g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): failure in 'FA_Calcium' execution", "");
                    exit(1);
                }
            }
            else {
                if (!a_farm->FA_Calcium(a_field, 0.0, a_field->GetMDates(1, 3) - g_date->DayInYear())) {
                    SimpleEvent_(g_date->Date() + 1, pl_sbs_ferti_s6, true, a_farm, a_field);
                    break;
                }
            }
        }
        done = true;
        // So we are done, and somwhere else the farmer will queue up the start event of the next crop
        // END of MAIN THREAD
        break;
    default:
        g_msg->Warn(WARN_BUG, "PLSpringBarleySpr::Do(): "
            "Unknown event type! ", "");
        exit(1);
    }
    return done;
}