Hollow heating seedling cultivating box and application thereof

Abstract

The invention relates to a hollow heating seedling cultivating box and application thereof, and belongs to a method for cultivating seedlings of trees. A box of which the bottom internal diameter is 200cm*100cm and the height is 30cm is made of color-steel complex sheets, geothermal lines of which resistances are 33ohm/m are laid on the bottom of the box, and then the seedling cultivating box which is used for heating and controlling temperature is made. Inside the seedling cultivating box, three expanded polystyrene foam sheets of which the length, width and height are 199cm*3cm*10cm are erected on the two longitudinal sides and the middle part, cover plates of the seedling cultivating box in sizes of 99cm*3cm*10cm are paved on the three expanded polystyrene foam sheets in sequence, cutting slips are inserted in small semicircular grooves while the cover plates are paved, the roots of the cutting slips appropriately contact with a black mulching film, and the small grooves of the two adjacent foam sheets are butted with each other to hold the cutting slips until that the cutting slips are fully inserted in the whole seedling cultivating box. According to the method provided by the invention, the rooting rate of the seedling is more than 95%, the root quantity is large, the roots are uniformly distributed, second-grade lateral roots are easy to cultivate, and the roots are mature. Compared with conventional seedbeds, the rooting rate and the number of the plant roots are greatly improved; more importantly, 80% of matrix is saved, so that the seedling cost is greatly reduced.

Description

1. Technical field [0001] The invention relates to a heated hollow seedling cultivation box and its application, which belongs to a method for cultivating forest tree seedlings, and is specially used for the breeding of seedlings. 2. Background technology [0002] The breeding methods of mulberry seedlings are divided into two categories: sexual reproduction and asexual reproduction. Asexual reproduction can maintain and continue the excellent traits of the parents, and its methods mainly include grafting, cuttings (hard branches and twigs), layering, etc. [0003] The use of grafting (bag grafting) to propagate mulberry seedlings currently occupies an absolutely dominant position in my country. At present, the main production areas of mulberry seedlings in my country are concentrated in 5-6 counties in Jiangsu and Zhejiang provinces. In normal years, more than 1 billion grafted mulberry seedlings are produced, supplying new planting and renewal of mulberry gardens in other...

AI Technical Summary

Problems solved by technology

However, due to the difficulty in rooting cuttings and the low seedling rate, it has not been widely used in actual production.

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