川中丘陵区不同播期和播种量对光叶紫花苕鲜草生产的影响

Effect of Sowing Date and Sowing Rate on Fresh Grass Production of Vicia villosa in Central Hilly Area of Sichuan

通过裂区设计试验,以播期为主处理,播种量为副处理,对5个播期（9月10日,9月25日,10月10日,10月25日和11月10日）和3个播种量（30、60和90 kg/hm2）的光叶紫花苕鲜草产量、生产效率和经济效益进行了研究。结果表明,以生产鲜草为目的的光叶紫花苕,在川中丘陵区适宜播期是9月,最佳播期是9月25日左右,此播期鲜草产量、生产效率和经济效益极显著高于其他4个播期。适宜播种量为30~60 kg/hm2。

Field experiment was conducted using split-plot experiment,sowing dates were main treatment,and sowing rates were sub-treatment.To study effect of sowing date and sowing rate on fresh grass yield,production efficiency,economic effectiveness of Vicia villosa（V.villosa） in central hilly area of Sichuan,the five sowing dates（September 10th,September 25th,Octomber 10th,Octomber 25th,and November 10th） and the three sowing rate（30,60 and 90 kg/hm2）were designed.The results showed that suitable sowing date were in September,and the optimum time of sowing was in September 25th.The fresh grass production capability sowed in September 25th was significant higher than ones of other sowing dates（P0.01）.After September,delaying sowing date reduced significantly fresh grass production capability（P0.01）.The suitable sowing rate was 30-60 kg/hm2,according to yield,production efficiency and economic effectiveness of V.villosa.