种生菜喂猪是我县农民素有习惯,从旧历8月至来年6月,差不多家家种植。生菜是一个多品种的饲料作物,分圆叶型和尖叶型两类。尖叶型植株较高(约2尺上下),茎细,叶狭而长,叶子着生密度较稀,产量较低,但适合夏季生长,故又名叫夏生菜。圆叶型分红心生菜、白叶子生菜、香生菜和高产品种剥叶生四种。前三种植株较矮,叶圆而小,产量比更生菜高,不宜夏季生长,栽植比较普 Feeding lettuce is a pig farmers in our county known as a habit, from the Lunar New Year in August to June, almost every family plant. Lettuce is a multi-species feed crop, divided into two types of leaf-type and pointed leaf. Sharp-leafed plants higher (about 2 feet up and down), thin stems, narrow leaves and long leaves density of the more diluted, lower yield, but suitable for summer growth, it is also known as summer lettuce. Round leaf dividend heart lettuce, white leaf lettuce, fragrant lettuce and high-yield varieties of stripping leaves four. The first three plants shorter, round and small, higher yield than the more lettuce, not summer growth, planting more general