Show rain run 03 03 02 without ben crop run fl enable rain penetrate sub sol thus retention moisture against always possible shall brass SOIL NATURES NATURES RESERVOIR rain penetrate surface off runoff run minnesota MIn Minne ami nature reservoir empty crop must perish station storage reservoir moisture far apart shall maintain proportion rainfall con find way reservoir itt dry greater capacity crop against drought rain penetrate dry surface soil already filled air condition repel water dry sponge air expelled |