Show KEITT KEITT south carolina ex ex LI Pert station field crop require GOO GOO water pound dry grown hence necessity loss water en nine dust mulch dry dust mulch doe net net tot net tot bet net tot bet hot deep practice found found round break log surface soil mulch sand clay mulch necessary min min mid minimum top soil soil boil lower soil mulch greater root ran principle dual dual dust mulch capillary water drawn soil soil particle soil particle bey surface tension until surface soil surface depth already scrape sweep soil blanket surface prevent loss moisture extent necessary mulch soon soon boon possible rain fly fly pip fly pip pap fly pip pap pay way NECESSITY DUST MULCH water surface trough loss Z maze re cap |