【摘要】 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。更多还原

【Abstract】 In this paper,the growing temperature summation,the temperature of the key growing period and the winter hardiness are investigated,which are Onobrychis viciaefolia,purple alfalfa, Melilotus officinalis,and Astragalus adsurges,four species of artificial grasses.更多还原