论文部分内容阅读
1、研究了黑麦草在四川北部生长的全过程。结果表明由原产地欧洲引入我国的优质高产牧草——黑麦草也能适应四川盆地北部山区的地理和气候及土壤特点,其生长优势表现得十分明显。 2、实验和观察表明,该草具有很强的种间竞争能力,自然产量很高(平均亩产为1.5—2万斤),为营造大面积永久性草场的优质草种。 3、选取生长周期短(与大牲畜相比较)的水生动物——草鱼来作对比,进行了黑麦草参加生物有机体同化反应效率的实验。实验组(黑麦草)的饵料系数为20,对照组(一般陆生草)的饵料系数为39.4。 4、讨论了黑麦草在川西北地区的可利用性。
1, studied the whole process of ryegrass growing in northern Sichuan. The results showed that the high-quality pasture introduced into China from the origin of Europe, ryegrass, can adapt to the geographical and climatic characteristics and the soil characteristics in the northern mountainous area of Sichuan Basin. The growth advantage is very obvious. 2. Experiments and observations show that the grass has strong interspecific competition and natural yield is very high (average yield per mu is 1.5-20000 kg), which is a good quality grass for creating large-scale permanent grassland. Select the aquatic animal - grass carp with short growth cycle (compared with the large livestock), and compare the efficiency of ryegrass in biological organism assimilation. The experimental group (ryegrass) bait coefficient of 20, the control group (general terrestrial grass) bait coefficient was 39.4. 4, discussed the availability of ryegrass in northwestern Sichuan.