为充分利用热量资源,对过去所内选育的早熟青稞及我们搜集的材料,进行了初步观察,同时对绿肥品种也进行了试验,以选出一年两熟的早熟青稞和早熟青稞收获后复种在当地能够采种的绿肥品种。青稞早熟材料的观察 1975年在3月26日,5月24日分两次播种,前茬分别为马铃薯和蔬菜。对照为藏青336。播量以10万粒/亩计算。基肥每亩羊粪500斤。第一期播种共灌水7次,中耕除草3次。第二期播种共灌水5次,中耕除草2次。 In order to make full use of caloric resources, we conducted preliminary observations on the early-season barley and the materials we collected in the past, and also conducted experiments on green manure varieties to select the early-maturing barley and the early maturing barley, In the local species can be planted green manure. The observation of early mature barley material 1975, March 26, May 24, two seeding, the former crop were potatoes and vegetables. The control is Navy 336. Seeding to 100,000 / acre calculation. Basal fertilizer per mu sheep 500 pounds. The first phase of a total of seven irrigation sowing, cultivating and weeding three times. The second planting a total of 5 irrigation, cultivating and weeding 2 times.