— old fertilizer bands in row crops — field borders — useless furrows, attracts — terraces, previous fence rows, or roads — manure places — strange areas including alkali places Resistivity sounding: This method is employed to check the vertical changes; the electrode system is expanded, a few set central https://grocerytransportation78110.blogscribble.com/31764314/the-2-minute-rule-for-soil-analysis-and-testing-bd