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生菜的营养价值高于许多瓜果蔬菜,食用部分含蛋白质、碳水化合物以及各种维生素、钙、铁等,其株体内含有莴苣素,具镇痛催眠作用。我地蔬菜专业户陈宪基近年来四季栽培的生菜叶球紧实,质地脆嫩,产量高,四季亩产共达1.5—2万公斤,投放市场销售快,经济效益十分显著。现将生菜四季栽培高产技术经验介绍如下: 一、选好栽培方式。(1)春覆盖栽培。2月上旬在阳畦播种育苗,3月上、中旬定植于小拱棚内,5
Lettuce nutritional value is higher than many fruits and vegetables, edible part of the protein, carbohydrates and various vitamins, calcium, iron and other strains of its body contains lettuce, with analgesic and hypnotic effects. In recent years, Chen Xianji, a vegetable specialist who grows lettuce in all four seasons, has compact leaf spheres, crispy texture and high yield. The total output of mu per hectare is 15-2000 kg per mu in the four seasons, and the market is put on fast sales and the economic benefits are remarkable. Now four seasons cultivation of lettuce high-yielding technical experience are as follows: First, the selection of cultivation methods. (1) Spring cover cultivation. Breeding nursery plants in Yangli in early February, planting in small arch sheds in mid-March and mid-March