青海湖北岸优质人工牧草分期混播试验技术研究

STUDY ON MIXED SOWING TEST TECHNIQUE OF HIGH QUALITY ARTIFICIAL FORAGE BY STAGES ON THE NORTH SHORE OF THE LAKE

文章在青海湖北岸研究了6个播期5个间作处理下,燕麦、箭筈豌豆、紫花苜蓿的高度、产量的生长变化规律,结果表明:5月27日播种的牧草所得生长高度最高,燕麦、紫花苜蓿和箭筈豌豆高度分别为121.0 cm、96.3 cm和80.1 cm,其中8月高度生长最快,燕麦、紫花苜蓿和箭菩婉豆高度分别生长了55.8 cm、48.0 cm和35.5 cm;燕麦在8月上旬高度生长最快,高度生长了24.2 cm,紫花苜蓿和箭筈豌豆在8月中旬高度生长最快;5月27日播种牧草收获产量最高,燕麦、紫花苜蓿、箭筈豌豆、燕麦与紫花苜蓿间作、燕麦与箭筈豌豆间作分别获得单播与混播产量为4.9 kg/m^(2)、3.5 kg/m^(2)、3.3 kg/m^(2)、9.9 kg/m^(2)和8.8kg/m^(2)。

The growth and variation rules of the height and yield of oats,Vicia sativa and alfalfa under 6 sowing periods and 5 intercropping ratios were studied in the north shore of the Qinghai Lake.The results showed that the height of the forage sown on May 27 was the highest,with the height of oats,alfalfa and common vetch being 121.0 cm,96.3 cm and 80.1 cm,respectively,and the height of August was the highest,with the height of oats,alfalfa and common vetch growing 55.8 cm,48.0 cm and 35.5 cm,respectively.The highest growth rate of oat was 24.2 cm in early August,and the highest growth rate of alfalfa and common vetch was in mid-August.The yield of oats,alfalfa,common vetch,oats and alfalfa,and common vetch was 4.9 kg/m^(2),3.5 kg/m^(2),3.3 kg/m^(2),5.0 kg/m^(2) and 3.9 kg/m^(2),respectively,and the yield was the highest on May 27.