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菠菜生长周期短,商品化程度高。近年来,莱阳市各地多利用春秋低温季节,播种2～4茬菠菜,种植面积不断扩大,现已成为大宗出口创汇的蔬菜品种之一。为了及时补足微量元素,做到平衡施肥,在菠菜生长中后期,菜农多选用叶面肥或生长调节剂叶面喷施,以促使菠菜加速生长,提高鲜菜产量和质量。为了筛选出适于菠菜生长的叶面肥,1999年春秋两季,我们就当地市场上的叶面肥进行了筛选试验,2000年春又进行了验证,结果如下。材料与方法试验地设在莱阳市菠菜产地具有代表性的地块上,土壤类型及基础养分状况见表1。所选用的叶面肥名称、生产厂家及施用浓度见表2。
Spinach growth cycle is short, high degree of commercialization. In recent years, Laiyang City, more use of spring and autumn low temperature seasons, sowing 2 to 4 stubble spinach, growing area has become a large export of foreign exchange one of the vegetables. In order to make up trace elements in time to achieve balanced fertilization, spinach growth in the late, farmers choose foliar fertilizer or growth regulator foliar spray to accelerate the growth of spinach to improve yield and quality of fresh vegetables. In order to screen out the suitable foliar fertilizer for the growth of spinach, we conducted the screening test of the foliar fertilizer on the local market in the spring and autumn of 1999, and verified the spring of 2000 and the results are as follows. Materials and methods The experiment was located in the representative plots of spinach producing areas in Laiyang City. Table 1 shows the types of soils and the basic nutrients. The name of the selected foliar fertilizer, manufacturer and application concentration in Table 2.