\documentclass[10pt,letterpaper, final]{report} % \documentclass{} required in all files

\usepackage{../preamble/myWEPS} % This is now our single preamble file inclusion (it assumes a “.sty” file extension)

\usepackage{multirow}


\begin{document}
%\newpage	\section{\ExercisesevenScenario} \label{sec:\ExercisesevenScenario}
%			\input{../Examples/Example_7.tex}

\subsection{Skill Building} \label{subsec:Skill_Building_7}

In this exercise, the user must add each operation independently,
without using management templates (i.e., from scratch).

Corn silage is of interest here for being a low residue crop from the wind erosion standpoint
because most of the biomass is harvested.
There is manure from a dairy to be added, as well as winter wheat, cut for silage in the spring.


\subsection{Scenario} \label{subsec:Scenario_7}

\begin{itemize}
\item{The dairy is located in \textbf{Curry County, New Mexico}, just south of Clovis.}
\item{The approximate location coordinates we will use
for the actual field site are: \textbf{34.35804º N, 103.26423º W}.}
\item{The soil is an Amarillo loamy fine sand, \textbf{Amarillo{\_}NM669{\_}AnB{\_}80{\_}LFS}}..
\item{This field is an irrigated \textbf{half circle} on the \textbf{west half} of a quarter section of land.
It is \textbf{62.7 acres} (see WebSoilSurvey map in {\cref{fig:Map of the field for Exercise 7}}.}
\item{The Cligen station is \textbf{PORTALES}.}
\item{The Windgen station is \textbf{Interpolated}.}
\item{The producer has a Comprehensive Nutrient Management Plan that requires him
to apply \textbf{15 t/ac of very dry manure, 25$\%$ moisture by weight}
(15 tons/ac x 2000 lbs/ton = 30,000 lbs/ac wet wt. 
or 30,000 lbs/ac x 0.75 = 22,500 lbs/ac on a dry weight basis).}
\item{The option of fall application exists
since there is no surface or ground water near the dairy
and little rainfall runoff over the winter,
but spring application fits the work schedule.
A Low Elevation Spray Application (LESA) nozzle package on the pivot
can meet the Consumptive Use of both corn and winter forage crops.}
\end{itemize}

\begin{table}[H]
\centering
\begin{tabular}{|l|l|l|l|}
\hline
\textbf{Date}	& \textbf{Operation}	& \textbf{Crop or Residue}	& \textbf{Flat Residue}\\
&	&	& 	\textbf{Amt Added}\\
&   &   &   \textbf{(lbs/ac)}\\
\hline
April 15& Manure spreader, solid and semi-solid manure, semi-solid& Manure, semi-solid& 22,500\\
\hline
April 15& Disk, offset, heavy& &\\
\hline
April 18& Cultivator, field 6 - 12 in sweeps& &\\
\hline
April 20& Planter, double disk opener& Corn, silage&\\
\hline
April 21& Irrigation, Start Monitor (pivot,linear,wheelline)& &\\
\hline
Sep 1& Irrigation,Stop Monitor& &\\
\hline
Sep 20& Harvest,silage& &\\ 
\hline
Sep 25& Disk, tandem heavy primary operation& &\\
\hline

\end{tabular}
\caption{System operations for corn silage alone.}
\label{table:System operations for corn silage alone}
\end{table}

The expected wet weight yield for the \textbf{corn silage is 23 t/ac} at \textbf{65$\%$ moisture}.
The wet weight for the \textbf{winter wheat silage is 7 t/ac} at about \textbf{70$\%$ moisture}
Since WEPS doesn't currently contain a specific winter wheat crop record for silage harvesting,
we will use the more generic \textbf{Small grain, winter, silage} crop record\footnote{
One could also use the regular \textbf{Wheat, winter, grain} crop record,
but one would not be able to display the desired harvestable components (and desired units)
as being harvested in the WEPS Reports.
Also, it would not be easy to correctly calibrate that crop record
with the wrong crop component(s) being listed for harvesting, if desired.
This is currently a limitation on how WEPS crop records are defined where
only one set of harvestable components can be specified within the crop record itself.}.
The amount of \textbf{semi-solid manure residue} added (\textbf{22,500 lbs/ac})
contains fairly fine, quickly decomposable organic material.
This organic material will have a long-term impact on soil quality. 

\begin{table}[H]
\centering
\begin{tabular}{|l|l|l|l|}
\hline
\textbf{Date}	& \textbf{Operation}	& \textbf{Crop}	& \textbf{Flat Residue}\\
&	&	& 	\textbf{Amt Added}\\
&   &   &   \textbf{(lbs/ac)}\\
\hline
Mar 1& Irrigation, Start Monitor (pivot, linear, wheelline)& &\\
\hline
Apr 10& Irrigation, Stop Monitor& &\\
\hline
Apr 12& Harvest, silage& &\\
\hline
\multirow{2}{*}{Oct 3} &\multirow[c]{2}{*}{Drill or airseeder, double disk}& Small grain, winter, silage &\\
\multirow{2}{*}{} & &(Winter Wheat for silage)&\\
\hline

\end{tabular}
\caption{Additional operations for the winter wheat silage.}
\label{table:Additional operations for the winter wheat silage}
\end{table}

\begin{figure}[H]
\centering
	\includegraphics[scale=1.5]{images/Example_7/Ex7-7.jpg}
\caption{WebSoilSurvey Map of the field for Exercise 7 and its Wind Erodibility Index Rating.}
\label{fig:Map of the field for Exercise 7}
\end{figure}

\subsection{Make initial run without applying manure} \label{subsec:Make initial run without applying manure}

\textbf{Step 1}: Enter all the information listed above on the main interface. For the field shape,
select the \textit{Half Circle VW} in the Simulation Region panel,
indicating the \textbf{V}ertical \textbf{W}est half of a circle
({\cref{fig:WEPS interface ready except for the management}}).

\begin{figure}[H]
\centering
	\includegraphics[scale=1.7]{images/Example_7/WEPS_interface_ex7.jpg}
\caption{WEPS interface ready except for the management.}
\label{fig:WEPS interface ready except for the management}
\end{figure}

\textbf{Step 2}: Open up the management editor and enter \textul{one at a time} all the operations listed in {\cref{table:System operations for corn silage alone}} except for the April 1 manure spreader
({\cref{fig:Management rotation for Corn silage conv no manure pivot CMZ19}}).
Click \textit{File}, then \textit{Save as...} menu options
and call it \textbf{Corn, silage, conv, no manure, pivot CMZ19}.
Click the Return button {\scalerel*{\includegraphics{images/icons/close.png}}{\strut} to leave the editor. 

\begin{figure}[H]
\centering
	\includegraphics[scale=1.8]{images/Example_7/MCREW_Example7.jpg}
\caption{Management rotation for ‘Corn, silage, conv, no manure, pivot CMZ19'.}
\label{fig:Management rotation for Corn silage conv no manure pivot CMZ19}
\end{figure}

\textbf{Step 3}: Click the Run button {\scalerel*{\includegraphics{images/icons/run.png}}{\strut}
and name the run after its management file: \textbf{Corn, silage, conv, no manure, pivot CMZ19}.

\begin{figure}[H]
\centering
	\includegraphics[scale=1.8]{images/Example_7/RunSummary_ex_7.jpg}
\caption{Run Summary for “Corn, silage, conv, no manure, pivot, CMZ19”.}
\label{fig:Run_Summary_for_Corn_silage_conv_no_manure_pivot_CMZ19}
\end{figure}

\textbf{What is the yield of silage?}
\textbf{Answer:} \textbf{21.5 t/ac} ({\cref{fig:Run_Summary_for_Corn_silage_conv_no_manure_pivot_CMZ19}}).
This is close enough to the 23 t/ac expected.

\textbf{How much soil loss was calculated?}
\textbf{Answer:} An excessive \textbf{152.4 t/ac} ({\cref{fig:Run_Summary_for_Corn_silage_conv_no_manure_pivot_CMZ19}}).


\subsection{Add manure in the Spring} \label{subsec:Add manure in the Spring}

\textbf{Step 1}: Open the MCREW.

\textbf{Step 1a}: Open up a blank row at the top of the table
by right-clicking in the \textit{Operation Column} and selecting the \textit{Insert Blank Row}
menu option.

\textbf{Step 1b} Clicking on the down arrow icon in the blank row's \textit{Operation Name} column,
insert the \textbf{Manure spreader, solid and simi-solid} operation
as shown in {\cref{table:System operations for corn silage alone}}.

\textbf{Step 1c} Set the date for this operation for \textbf{April 15, 01}.

\textbf{Step 1d}: Now in the \textit{Crop or Residue} column,
select \textbf{manure, semi-solid} residue (under the \textit{CRLMOD Residues} subfolder).

\textbf{Step 1e}: Move to the \textit{Total Manure Applied} column
and type in the \textbf{22,500} lbs/ac manure applied in the spring
({\cref{fig:The_management_rotation_for_Corn_silage_conv_spring_manure_pivot_CMZ19}}).

\textbf{Step 2}: Now, click \textit{File}, then \textit{Save As...} menu options
and save the file as \textbf{Corn, silage, conv, spring manure, pivot CMZ19}.

\textbf{Step 3}: Finally, click Return {\scalerel*{\includegraphics{images/icons/close.png}}{\strut}
to close MCREW and view the main interface.}

\begin{figure}[H]
\centering
	\includegraphics[scale=1.8]{images/Example_7/MCREW_Manure_ex7.jpg}
\caption{The management rotation for ‘Corn, silage, conv, spring manure, pivot, CMZ19'.}
\label{fig:The_management_rotation_for_Corn_silage_conv_spring_manure_pivot_CMZ19}
\end{figure}

\textbf{Step 4}: Click the Run button {\scalerel*{\includegraphics{images/icons/run.png}}{\strut}
on the main toolbar to make the run.
Call it \textbf{Corn, silage, conv, spring manure, pivot CMZ19.}

\begin{figure}[H]
\centering
	\includegraphics[scale=1.8]{images/Example_7/RunSummary_manure_ex7.jpg}
\caption{Run Summary for ‘Corn, silage, conv, spring manure, pivot CMZ19’.}
\label{fig:Run Summary for Corn silage conv spring manure pivot CMZ19}
\end{figure}

\textbf{What is the soil loss with the manure applied in the spring and tilled in?}

\textbf{Answer: 124.4 t/ac} ({\cref{fig:Run Summary for Corn silage conv spring manure pivot CMZ19}}). This is a nice reduction from 152.4 tons per acre,
but still far in excess of the Soil Loss Tolerance (5 t/ac/yr).

Open the Detailed Report {\scalerel*{\includegraphics{images/icons/ReportD.png}}{\strut}.

\textbf{When and where are the high erosion trouble spots?}

\textbf{Answer}: March and April are the worst months with 73.2 tons of soil per acre
blown away before the manure is applied.
March and April also has little \textit{Flat Mass} available at approximately 115 lbs/ac
({\cref{fig:Detailed Report showing soil loss and flat mass in the months of March and April}}).

\begin{figure}[H]
\centering
	\includegraphics[scale=1.6]{images/Example_7/Detailed_report_ex7.jpg}
\caption{Detailed Report showing soil loss and flat mass in the months of March and April.}
\label{fig:Detailed Report showing soil loss and flat mass in the months of March and April}
\end{figure}


\subsection{Adding the Winter Wheat Forage Crop} \label{subsec:Adding the Winter Wheat Forage Crop}

\textbf{Step 1}: Close all reports and reopen the management editor. Add the additional operations for the winter wheat silage listed in to the existing system ({\cref{table:Additional operations for the winter wheat silage}} and {\cref{fig:MCREW showing winter wheat operations}}). These can be added to the end of the run and arranged afterward by clicking the Sort button {\scalerel*{\includegraphics{images/icons/sortbutton.give.jpg}}{\strut}. When you have them entered and sorted, then click ‘File’, ‘Save as...’, and enter the management name as \textbf{Corn, silage-WWheat, silage, conv, spring manure, pivot CMZ19}. Close MCREW and return to the main interface.

\begin{figure}[H]
\centering
	\includegraphics[scale=1.6]{images/Example_7/MCREW_WinterWheat_ex7.jpg}
\caption{MCREW showing winter wheat operations.}
\label{fig:MCREW showing winter wheat operations}
\end{figure}

\textbf{Step 2}: Run the management and call it \textbf{Corn, silage-WWheat, silage, conv, spring manure, pivot CMZ19.}

At the end of the run, some warnings are generated ({\cref{fig:Warnings generated after addition of winter wheat silage to the rotation}}). These warnings tell you that the winter wheat did not reach maturity. This is because, as silage, it was harvested before its growth cycle was finished. Close the warning to view the Run Summary.

\begin{figure}[H]
\centering
	\includegraphics[scale=2]{images/Example_7/warnings_Ex_7.jpg}
\caption{Warnings generated after addition of winter wheat silage to the rotation.}
\label{fig:Warnings generated after addition of winter wheat silage to the rotation}
\end{figure} 


\begin{figure}[H]
\centering
	\includegraphics[scale=2.2]{images/Example_7/Runsummary_winterwheat_ex7.jpg}
\caption{Run Summary showing soil loss for the corn and winter wheat silage crops.}
\label{fig:Run Summary showing soil loss for the corn and winter wheat silage crops}
\end{figure}

\textbf{How does the soil loss look now?}

\textbf{Answer}: It has decreased significantly from the previous
\textbf{124.4 t/ac} to \textbf{14.8 t/ac}
({\cref{fig:Run Summary showing soil loss for the corn and winter wheat silage crops}}).
The soil loss may be reduced below loss tolerance “T” by harvesting less of the silage for each crop.
Also, looking at the Tabular Detail Report, most of the erosion is occurring
following harvest of the corn silage and after planting the winter wheat.
Applying some irrigation water may also control erosion during those time periods
and also will likely boost the amount of water available for the wheat crop
and possibly the corn crop the following year.

The yield for the winter wheat silage(\textbf{7.1 tons/ac}) is very close to the
producer's stated 7 tons/ac expected yield.
The yield has decreased for this scenario for the corn silage to \textbf{21 t/ac}.
However, it is still close enough to the producer's expected 23 tons per acre
and the yield differences would have little effect on the susceptibility to wind erosion.
Since the crops are being harvested for silage,
therefore the yields will have little impact on the after harvest residue amounts retained.
Regardless, the slight drop in the corn silage yield would not be unexpected
if the winter wheat is using up some of the soil moisture available at planting time,
even with irrigation enabled
(the auto-irrigate operations do not apply water if no crop is growing
and only irrigate if the crop reaches a predefined stress level).
If you have trouble with this, contact your NRCS State Wind Erosion Specialist.

\begin{figure}[H]
\centering
	\includegraphics[scale=2.0]{images/Example_7/QuickPlot_winterwheat_ex7.jpg}
\caption{QuickPlot showing when erosion is occurring in the rotation.}
\label{fig:QuickPlot_erosion_ex7}
\end{figure}

\end{document}