Mrs. Clinton went over the top with the support of around 20 additional superdelegates, the officials who represent about 15 percent of the delegates to the Democratic convention. These delegates did not previously commit to Mrs. Clinton, but pledged their support to her in interviews with The A.P.
SOIL CONDITIONS - Bearded iris need a balanced, well-drained soil but are very adaptable to a variety of soil types. Raised beds can help with drainage and are a MUST for areas with high rainfall. Iris, like most perennials, prefer neutral to slightly acidic soil (pH of 6.8 - 7.0 is ideal). Heavy clays need to be amended with gypsum or coarse sand to aid drainage. In our production fields, we till the soil to a depth of 10-12 and add a dash of superphosphate or bone meal.
Soil pH. Soil pH is a measure of the acidity and alkalinity in soils. pH levels range from 0 to 14, with 7 being neutral, below 7 acidic and above 7 alkaline. The optimal pH range for most plants is between 5.5 and 7.0; however, many plants have adapted to thrive at pH values outside this range. knowledge of the soil and the crop is important in managing soil pH for the best crop performance. Soils become acidic when basic elements such as calcium, magnesium, sodium and potassium held by soil colloids are replaced by hydrogen ions.