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本文研究了红豆草、紫花苜蓿、草木樨、沙打旺4种人工牧草生长发育的积温、关键生育期温度和耐寒性。
In this paper, the accumulation of temperature, key growth temperature and cold tolerance of four kinds of Artificial forages such as sainfoin, alfalfa, licorice, and Astragalus adsurgens were studied.