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作者在位于华北农牧交错带的承德地区鱼儿山牧场中国农业大学科技攻关试验站,对冬牧70 黑麦和箭舌豌豆单播及混播的一年生人工草地进行了生物量动态、牧草品质及种间竞争的研究。结果表明,冬牧70 黑麦单播最佳刈割期为抽穗期,混播的最佳刈割期为黑麦乳熟早期,箭舌豌豆下部豆荚充满时期。最佳的混播组合为冬牧70黑麦25% + 箭舌豌豆75%和冬牧70 黑麦50% + 箭舌豌豆50% 。从整个混播群落看,冬牧70 黑麦生长快,植株高,其竞争力强于箭舌豌豆,在竞争中占优势。
The author studied the dynamics of biomass, the quality of forage grass and the annual grass-growth rate of winter grass 70 rye and arrow tongue pea in the artificial breeding grassland of China Agricultural University in Yueshan Mountain Ranch, Chengde, Chengde, in the ecotone between agriculture and animal husbandry in North China. Study on interspecific competition. The results showed that the best cutting period of winter grazing 70 rye unicast was heading date, and the best cutting period of mixed sowing was rye millet ripening early, and the lower part of arrow tongue pea was full. The best mixed-sowing mix is 70% of winter-grazing 70 rye + 75% of tongue-pea and 50% of winter rye 70 rye + 50% of tongue-tipped pea. From the perspective of mixed community, winter grazing 70 rye grow fast, plant height, its competitiveness is stronger than arrow tongue pea, dominant in the competition.