Farmers benefit from the technology of strawberry seedling cultivation in rain proof medium

"What new technology keeps the transplanted strawberry alive?" On the morning of September 15, a group of strawberry growers in the strawberry planting shed of kouchanghe, Zhoukoudian Town, Fangshan District, Beijing followed up and inquired At this time, the scientific and technological personnel of the Institute of plant nutrition and resources of Beijing Academy of agricultural and Forestry Sciences and Fangshan Agricultural Science Institute are here to hold a field observation meeting of strawberry seedling technology with rain proof substrate, preparing to transfer the new technology of increasing the survival rate of strawberry after planting to more than 95% to strawberry farmers Strawberry seedling is an important part of strawberry production There is a saying that "70% of the seedlings yield well" At present, strawberry seedlings are mainly raised by simple and extensive methods of bare root in open field This method is suitable for European and American varieties with strong resistance However, with the increase of people's demand for fresh strawberry, the planting area of daily strawberry varieties is increasing year by year Under the condition of conventional bare root seedling raising, the propagation coefficient is low, only 1:10-20, the heat resistance and waterlogging resistance are poor, and it is easy to infect a variety of diseases The survival rate after planting is low, and the general seedling repair rate is more than 30% - 40% In order to solve the problem of strawberry production seedling breeding, technicians from the Institute of plant nutrition and resources of Beijing Academy of agricultural and Forestry Sciences studied the formula and technology of strawberry special seedling medium, and developed strawberry special seedling medium It is reported that this kind of substrate integrates the functions of substrate, nutrition, acid regulation and water conservation, which can provide good basic conditions for the growth of strawberry seedlings Due to the adoption of slow-release technology of nutrients, nutrients can be provided according to the nutrient demand curve of seedlings The nutrient concentration is high but the seedlings are not burned, thus reducing the topdressing operation and labor intensity The technical personnel of the Institute carried out the research and development of supporting seedling facilities and materials, developed special strawberry seedling trays, stolon seedling press and other products, and carried out application experiments and demonstrations Since the spring of 2010, the Institute has carried out demonstration and promotion of strawberry production seedlings in seven bases in the suburb of Beijing, with a total of more than 5 million seedlings The rate of seedling propagation in medium is high, and the coefficient of seedling propagation is 1:50-70, which is 3-5 times of that in bare root The seedling quality is good The survival rate of medium seedling is more than 95%, the rate of mending seedling is less than 5%, and the rate of strong seedling is more than 88% Compared with the common bare root seedlings, the substrate strawberry seedlings cultivated at the same time are robust, fast rooting, slow seedling, uniform growth, early flower bud differentiation, early fruit setting, showing obvious advantages The yield of strawberry substrate cultivation is 47% higher than that of conventional soil culture.