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small localized areas that receive only limited amounts of supplemental irrigation water <br />because of the natural topography or landform. These areas are too small to stratify out from <br />the type. Land leveling or shaping to overcome these problems has not been done to any <br />great extent within the study area. Ground water seeps and boggy areas from irrigation runoff <br />and irrigation recharged ground water systems contribute to areas of higher production or <br />occur as the swale /drainage vegetation type. <br />The overall composition and species diversity of the site is indicative of the generally poor <br />condition of the irrigated pasture type. Both Kentucky bluegrass and buckhorn plantain <br />dominate the composition of the stand and have frequencies of occurrence of greater than 85 <br />percent (see Table 2.04.10 -15). The considerable presence of quackgrass, field bindweed, <br />and dandelion is also indicative of the deteriorated pasture condition. Most of the operators <br />contacted indicated that a standard pasture mix originally was used to establish most of the <br />pastures. Smooth brome (Bromopsis inermis ssp. inermis), orchardgrass, timothy, white <br />Dutch clover, and red clover occurred in the pasture type and are normally included in <br />standard irrigated pasture mixes. <br />Nootka rose (Rosa nutkana) is a common invader shrub of irrigated pastures in the Nucla <br />area, with Russian olive (Eleagnus angustifolia) and elm (Juglans nigra) occurring at lesser <br />levels where pastures have been abandoned. <br />6.3 Irrigated Pasture - Hayland Type (IPH) Since this description was originally written by IRI <br />in 1999, the Morgan fields east of the fenceline in the southwest portion of the 1999 study area <br />have been re- classified as Irrigated Cropland (IC). Therefore, the discussion and tables for this <br />vegetation type include Morgan fields which are Irrigated Cropland (IC). <br />The irrigated pasture hayland fields generally occur on soil map units 98D and 98E (NHM <br />2.04.9 - Soil Resource Information) within the study area. Slopes range 1 to 4 percent with a <br />small area of slopes up to 6 percent. Results are summarized in Table 2.04.10 -18. <br />Johnson's property has two hayland fields that yielded similar production. The first pasture on <br />the western portion of the property is 20 acres in size. The field is primarily grasses and forbs <br />with approximately 5 percent alfalfa. The field yielded 1,024 bales on the first cutting with an <br />August 2013 (PR 08) 2.04.10 -59 <br />