Crop progress in South Dakota remains in neutral, the U.S. Department of Agriculture said in an update on Monday.

According to the USDA's National Agricultural Statistics Service, just 19 percent of the state's expected corn crop has been planted, well behind the 60 percent planted rate in 2018 at this time. The five-year average for corn planted by this time annually is 76 percent.

Similarly, 4 percent of soybeans have been planted, behind 21 percent in 2018 and well-behind the 39 percent average. Spring wheat, oats and sorghum remain well behind schedule, as well. The service said there has been only 3.3 days suitable for fieldwork as of May 19.

Moisture reports indicate there has been more than enough precipitation this spring. Topsoil moisture supplies were rated at 52 percent adequate and 48 percent surplus, while subsoil moisture supplies have been rated at 60 percent adequate and 39 percent surplus.

The survey is collected through South Dakota State University Extension and the USDA's county Farm Service Agency outlets.