1986～1988年在美国中部的内布拉斯加州邻近悉尼的粉砂土（干旱的Algiustol）进行田间试验，大麦品种为Hitchcock和Dundy，播种深度为1．25或2．5英寸，播种量每英亩40或80磅；9月1日、15日或30日播种，耕款或免耕。播量大的处理出苗数及成苗数比播量少的高10～15％，但籽粒产 Field experiments were conducted in 1986-1988 on silty earth (arid Algiustol) in Sydney near Nebraska in the central United States. The barley varieties were Hitchcock and Dundy with a sowing depth of 1.25 or 2.5 inches. Seeding per Acres 40 or 80 pounds; sown on September 1, 15 or 30, cultivated or no-till. Sowing a large number of seedlings and seedling number less than the sowing of high 10 ~ 15%, but the grain yield