不同播种方式对岷山红三叶草产量的影响

The effect of different sowing methods on the production of Trifolium pretense cv. Minshan

通过在海拔2450m的岷县南部高寒阴湿地区进行岷山红三叶Trifolium pratense cv. Minshan干草丰产栽培试验,得到以下结论:条播为岷山红三叶进行干草生产的最佳播种方式,行距以20cm最为理想,该行距下生长速度快,而且产草量最高。播种当年A组(行距20cm)鲜草产量比对照组(撒播)高出4987.5kg/hm2,是对照组的1.27倍,差异极显著(P<0.01);A组鲜草产量比B组(行距40cm)高101kg/hm2,差异显著(P<0.05)。生长第2年,A组鲜草产量均高于对照组和B组,是对照组的1.16倍,差异极显著(P<0.01),是B组的1.02倍,差异显著(P<0.05)。不同播种方式对岷山红三叶鲜干比无影响。

A planting experiment with Trifolium pretense cv. Minshan was conducted at a 2 450 meters altitude place in the southern regions of Min county. Seeds of the plant were sprayed with hands （control）, or drill seeding with 20 （treatment-1） or 40 row distance （treatment--2）. At the end of the planting year, the fresh weight of the treatment--1 was significantly （P〈0.01） higher than the control, which was more than 4 987.5 kg/hm^2, or was 1.27 times of the control; which was also significantly （P〈0.05） higher than the treatment -2, was more than 101 kg/hm^2. The fresh weight of the treatment--1 in the second year was significantly higher than the control （P〈0.01） and the treatment--2 （P〈0.05）, in which that was 1.02 times of the control. In conclusion, the threatment-- 1 was the most suitable planting method in the region.