Once complete, the 44,000 solar panels will generate enough energy to power more than 2,000 homes.
Some lawmaker hope to revisit bill that would have made it a crime for activists to take photos at farms and publish them in an attempt to hurt the business.
With high seed and fertilizer prices, agriculture experts say there is little room for error when it comes to planting crops.
The first bill the governor signed into law prevents a $57 million in farm property tax increase.
However, farmers say the smaller tax burden would encourage them to buy newer equipment.
Farm-related fatalities fell from 23 in 2010 to 16 in 2012, a Purdue University study found.
The commonly used herbicide atrazine kills weeds in corn and sorghum fields without harming the crops.
Indiana Department of Agriculture officials say the so-called "green manure" helps soil recover faster if there is little rain.
An environmental group says the fines are not harsh enough, but IIDEM says its penalties for water quality contamination are stricter than federal regulations.
Pumpkins have deep roots, so they were able to withstand the state's summer drought.