【摘要】 在青藏高原黑土滩退化草地上,采用两因素完全随机区组设计,进行了行距与播量对麦宾草干草产量和种子产量影响的试验研究。结果表明:行距和播量对牧草产量和种子产量影响显著,二者对种子产量有显著的交互作用(P<0.05);30 cm行距的干草产量和种子产量都显著高于15cm行距,30 kg/hm2播量的干草产量显著高于其它播量处理(P<0.05),播量为15 kg/hm2的种子产量最高。以生产饲草为目的 ,麦宾草播种行距为30 cm、播量30 kg/hm2较为适宜;若收获种子,播量可减小到15 kg/hm2。更多还原

【Abstract】 The effects of row spacing and seed rate on the forage and seed yield of Elymus tangutorum was studied by using randomized complete block design in "black soil type" degraded grassland in Qinghai-Tibet plateau. The results showed that: row spacing and seed rate had significant effect on the forage and seed yield of Elymus tangutorum, and there was a significant interaction of row spacing and seed rate on seed yield(P < 0.05). Forage yield and seed yield in 30 cm row spacing respectively higher than in 15 cm row spacing, and had a highest forage yield in 30 kg/hm2 seed rate than others(P < 0.05), in addition, seed yield in 15 kg/hm2 of seed rate reach largest in all treatments. So we draw a conclusion that 30 cm row spacing and 30 kg/hm2 of seed rate was the best for forage production of Elymus tangutorum, and the seed rate can be minished to15 kg/hm2.for seeds production.更多还原