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塑料大棚促成栽培的草莓苗,通过假植改变植株的C/N比,可以促进花芽分化,使营养生长尽快转向生殖生长,从而达到提早开花结果,抢先应市。本地草莓苗的假植方法普遍都采用地上假植法。笔者几年来用塑料营养钵假植的草莓,比地上假植的采果早,产量高。现将1995年对比试验小结如下,以供参考。 一、材料与方法 草莓品种为丰香。8月15日取壮苗假植。假植方法为地上假植,即把草莓苗移栽在一般土地中,密度为10cm~2/株;营养钵假植,以70％沙土和 30％焦泥灰作营养土,把草莓苗移栽至10×10cm的塑料营养钵中。假植后用遮阳网遮阴,管理以保温、防治病虫害为主,一般不施肥料。假植苗9月18日定植,试验分营养钵假植和地上假植2个处理,每处理面积6.25m~2种50株,3次重复,随机排列。试验采取深沟高畦栽培,畦宽连沟1m,沟深约25cm,每畦种2行,株距25cm。肥水管理与一般种植相仿。试验区10月30日盖地膜,11月5日盖大棚膜保温。
Plastic greenhouse to promote the cultivation of strawberry seedlings, through the fake plants to change the C / N ratio, can promote flower bud differentiation, so that vegetative growth turned to reproductive growth, so as to achieve early flowering results, the first should the city. Local strawberry seedlings fake planting methods commonly used on the ground fake law. The author in recent years with plastic nutrition bowl implanted strawberries, than the ground planted fruit picking early, high yield. The 1995 comparative test is summarized below for reference. First, materials and methods Strawberry varieties for the abundance of incense. August 15 to take strong seedlings planted. The fake plantation method is the fake plant on the ground, that is, the strawberry plantlets are transplanted in general land with the density of 10cm ~ 2 / plant; the vegetative bowl is planted with 70% sand and 30% coke as nutritional soil, Planted into 10 × 10cm plastic nutrition bowls. After shading with shading net shade, management to insulation, pest control mainly non-fertilizers. Fake seedlings planted on September 18, the experimental sub-vegetated vegetative and ground fake plants 2 treatments, each treatment area of 6.25m ~ 2 50, 3 times repeated random arrangement. Test to take the cultivation of deep ditch Gaozhu, 畦 wide even ditch 1m, ditch depth of about 25cm, each 畦 species 2 lines, plant spacing 25cm. Fertilizer and water management similar to the general planted. Test area October 30 cover film, November 5 cover greenhouse film insulation.