大花胡麻草与碎米莎草混播技术的研究

Research on Mixed Sowing Techniques of Centranthera grandiflora and Cyperus iria

摘要: 为了探索根部半寄生植物大花胡麻草的人工种植技术，本研究以根部半寄生植物大花胡麻草和团队前期筛选出的优良寄主碎米莎草种子为实验材料，进行混播。测定了不同播种时期、寄主配比、整地方法及苗期遮光率对大花胡麻草生长发育的影响。结果表明：最优方案为：在3月份将质量比例为1:0.7的大花胡麻草与碎米莎草种子混合均匀，播撒在翻耕后浇透水并将土搅拌成稀泥状的畦上，搭建小拱棚覆上透明棚膜后再拉上一层遮光率为50%的遮阳网覆盖。该方法出苗最早，成苗率最高，生长势最好。实验结果可为大花胡麻草的人工种植提供科学依据。

Abstract: To explore the artificial cultivation techniques for the root hemiparasitic plant Centranthera grandiflora, this study utilized the root hemiparasitic plant Centranthera grandiflora and seeds of the high-quality host Cyperus iria (screened in prior research) as experimental materials for mixed sowing. The effects of different sowing times, host ratios, soil preparation methods, and seedling-stage shading rates on the growth and development of Centranthera grandiflora were investigated. The results demonstrated that the optimal approach involved: uniformly mixing Centranthera grandiflora and Cyperus iria seeds at a mass ratio of 1:0.7 in March, sowing them on a raised bed with thoroughly watered and stirred muddy soil after tillage, and covering the bed with a small arched greenhouse structure using transparent plastic film, followed by a 50% shading net. This method achieved the earliest seedling emergence, highest survival rate, and optimal growth vigor. The experimental results provide a scientific basis for the artificial cultivation of Centranthera grandiflora.