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河套灌区土壤盐碱化是严重的,目前已达400余万亩。为采取生物措施治理盐碱,筛选耐盐碱的牧草品种,通过四年的试验,在土壤全盐含量0.5～1.0％的强盐碱地上,肥披碱草、老芒麦、紫花苜蓿、白花草木樨等七种牧草,仍能正常生长发育,其产量略低于非盐碱地上的收获量,可在盐碱地上推广栽培,改土治碱,又可促进灌区畜牧业的发展。
Hetao Irrigation soil salinization is serious, has now reached more than 400 acres. In order to take biological measures to control salt and alkali and select salt-tolerant forage varieties, the four-year experiment was carried out on strong saline soil with total salt content of 0.5-1.0% in soil, Elymus dahurica, Eupatorium majus, alfalfa, Clogs and other seven kinds of grass, still normal growth and development, its yield slightly lower than the non-alkali harvest, can promote the cultivation of salt and alkali soil, soil improvement and alkali, but also promote the development of animal husbandry in the irrigated area.