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Table 8. Critical periods for soil water stress for different crops* <br /> F <br /> Alfalfa Just after cutting for hay and at the start of flowering for <br /> seed production <br /> Barley During crown root development and from heading to anthesis <br /> Fj <br /> Beans Flowering,pod setting period, and ripening <br /> �1 <br /> Broccoli During head formation and enlargement <br /> Cabbage During head formation and enlargement <br /> Cauliflower During head formation and enlargement <br /> Corn During crown root development 'and at pollination <br /> Ell <br /> Cotton Avoid severe stress during early canopy development, <br /> ; <br /> Mild stress is desirable, during early boll growth. <br /> F <br /> Lettuce Requires wet soil particularly before harvest <br /> 4 ,i <br /> Oats During crown root development and from heading to anthesis <br /> Fi <br /> Peas At start of flowering and when pods are swelling <br /> 23 <br />