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张北镇东关村科技示范户任占科,试种一年两茬结球生菜0.05亩,共收生菜297公斤,收入589元,创1994年全县地膜栽培最高效益,使坝上地膜种植有了新的突破。具体方法是: 一、第一茬 1.育笛。4月1日在小盆内撒播皇帝早熟结球生菜籽,放入温度20—25℃的小棚内育苗。出苗后温度控制在白天18～20℃,夜间8—10℃,当苗二耳一心时,分苗干营养钵中(营养钵中营养土的配制按7份肥源土,3份优质农家肥,少量二铵),分苗时尽量少伤根,然后继续放入小棚内。 2.整地铺膜。5月上旬,选择砂壤土质,中等肥力,有水保浇的菜园地,深翻20厘米,施入粪糊270公斤,掺土搓碎铺于地面。粪土混匀后,修成长6.3米,宽1.2米,高10厘米的南北向高畦,然后
Zhangbei Town, Dong Guancun science and technology demonstration households Renzhuke, try planting two year crop of lettuce 0.05 acres, a total of 297 kg of lettuce, income 589 yuan, the highest in 1994 the county film cultivation benefits, so that the film mulching on the dam New breakthrough. The specific method is: First, the first stubble. April 1 in the small pot sowing the emperor early maturing roach seedlings, into the temperature of 20-25 ℃ shed nursery. Post-emergence temperature control at 18 ~ 20 ℃ during the day and 8-10 ℃ at night, when the seedlings are two ears, the sub-seedlings in the nutritional bowl (nutritional bowl nutrition soil preparation according to 7 fertilizers soil, 3 high-quality farmyard manure , A small amount of diammonium), minimize seedling injury roots, and then continue into the shed. 2 site preparation film. In early May, select sandy loam soil, medium fertility, water conservancy garden, deep turning 20 cm, into the stool paste 270 kg, mixed with grated ground paving. Mixture of mud, repair 6.3 meters long, 1.2 meters wide and 10 cm high north-south high ridge, and then