位于我县北部的马岭、卅铺、莲池、城关四个社、镇,气候比较干旱,山、塬、川地兼有,冬小麦播种面积十万余亩,是历年红矮病早发和常发地区,对小麦生产威胁很大。一九七六年该地冬小麦发生红矮病四万多亩,约占播种面积的40%;一九七七年发病28770亩,占27%。发病最重的马岭公社,一九七六年40321亩的冬小麦发病83%,平均亩产只有80多斤。 Located in the northern part of our county Maling, Hsuehpu, lotus ponds, Chengguan four clubs, the town has a relatively dry climate, mountain, plateau, both in Sichuan, sowing area of ​​more than 100,000 acres of winter red dwarf disease is early and Often areas, the threat to wheat production is great. In 1976, there were 40,000 mu of red dwarf diseases in winter wheat in the area, accounting for 40% of the sown area. In 1977, 28,770 mu of diseases were caused, accounting for 27% of the total. The highest incidence of Maling commune, in 1976 40321 acres of winter wheat incidence of 83%, the average yield of only 80 kilos.