Show plow down cover cro crop P to conserve Mols moisture furo to save soil sell moisture co cover ver crops should be plowed down as ea early ilyas as possible cover crops especially rye and vetch grow fast and use a lot of soil soft mol moisture sture during warm days iowa state i agronomists point out it if plant sare allow allowed edlAo 1 to grow too late they will take so much moisture that without additional rain there wont be enough to germinate newly planted crops nitrogen also will be added to soil all |