Crops are suffering from heat stress and lack of moisture across much of the state. Agriculture Secretary Bill Northey says the hot and humid weather has created stress for both crops and livestock. South central Iowa is very dry, with over 90 percent of top soil short or very short of moisture. Statewide, 52 percent of topsoil is rated short and very short. Corn conditions deteriorated slightly to 68 percent rated good to excellent. Soybean condition also dropped slightly with 62 percent rated good to excellent.