Seedbed soil for culturing blanket-like rapeseed seedlings and preparation method thereof

Abstract

The invention relates to a seedbed soil for culturing blanket-like rapeseed seedlings and a preparation method thereof, belonging to the technical field of agriculture. The seedbed soil is prepared through soil preparation, disinfection, mixing of fertilizers and addition of vegetable fiber. According to the invention, 2.5 to 3 g of pure nitrogen, 1.5 to 2 g of P2O5, 1.5 to 2 g of K2O and 0.15 to 0.25 g of borax are blended with seedling soil, 100 to 200 g of a decomposed organic fertilizer is blended, and 50 to 100 g of vegetable fiber is added. When the seedbed soil is used for culturing blanket-like rapeseed seedlings, the phenomenon of local dying of seedlings almost disappears, watering frequency during seedling culturing is reduced, uniformity of taken seedlings during transplanting is higher, the amount of soil on roots is increased, a root damage rate is decreased, seedlings transplanted into a big field are survived 2 to 3 days earlier compared to seedlings cultured by using traditional methods, and bases are laid for improvement of seedling culturing quality and high-yield of large-field production of the blanket-like rapeseed seedlings.

Description

technical field [0001] The invention relates to bed soil for raising blanket-shaped seedlings of rapeseed and a preparation method thereof, belonging to the field of agricultural technology. Background technique [0002] Planting rice stubble winter rapeseed after rice harvest is the main stubble layout of rapeseed production in the Yangtze River Basin of my country. Due to the fact that rice stubble is often late in production at present, and the suitable sowing period of rapeseed has passed after rice harvest, and direct sowing in the field often results in low yield because the growth time before winter is too short. Seedling-raising and transplanting is an effective method to solve the problem of rice stubble and winter rapeseed being too late to produce high yield. It has been widely used in production and is of great significance to improving the yield of rapeseed in my country. [0003] However, the traditional seedling cultivation and transplanting adopts seedbed cu...

AI Technical Summary

Problems solved by technology

Although this method can cultivate blanket-like seedlings, because the roots of the vegetable seedlings are intertwined in the non-woven fabric, the tearing action of the transplanting head on the blanket-like seedlings during the cutting process will cause great damage to the root system, resulting in slow and slow growth of the seedlings after transplanting. Seedlings take a long time, wasting valuable pre-winter growth time

[0010] 2. If non-woven fabrics are not used, the blanket-like seedlings formed are prone to fragmentation during the process of picking seedlings from the seedling tray due to insufficient strength.

In the actual production process, it was found that such amount of fertilization, especially the amount of nitrogen, is far from meeting the needs of vegetable seedlings, resulting in slow growth of vegetable seedlings, red leaves, short plants, high C / N ratio in the body, and vegetable seedlings transplanted to Live trees in Daejeon are slow and grow slowly

[0013] 2. The patent does not consider the application of boron fertilizer in the bed soil

[0014] In addition, the blanket seedlings cultivated by this patent often have local dead seedlings

The research found that the main reason is that the seedling density in the seedling tray is much higher than that in the seedling field, and the germs carried in the soil are easy to multiply. In addition, the resistance of the seedlings is reduced due to the high density, so the dead seedlings will occur.

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