Seedling culture method capable of effectively reducing occurrence of rust of herba solidaginis

Abstract

The invention discloses a seedling culture method capable of effectively reducing occurrence of rust of herba solidaginis. The seedling culture method comprises the following steps of selecting seed sources, performing collection and storage, treating seeds, selecting nursery gardens, treating nursery beds, performing sowing, performing temperature and humidity control and ventilation, performingfilm removal and seedling thinning-out, performing transplanting and weeding, performing disease prevention and topdressing, and performing irrigation and seedling lifting. According to the seedling culture method disclosed by the invention, before 5 days of sowing, compartment surfaces are sprayed with a mixture of 50% carbendazol and water of which the volume is 750 times of the 50% carbendazol,when the height of seedlings is 5cm, a mixture of chlorothalonil wettable powder and water of which the weight is 1000 times of the chlorothalonil wettable powder, a mixture of 50% carbendazol and water of which the volume is 1000 times of the 50% carbendazol, and a mixture of 70% thiophanate methyl and water of which the volume is 1000 times of the 70% thiophanate methyl are sprayed every 16 days, and can be alternatively used in batch considering the drug resistance of diseased plants, and when the height of the seedlings is 5-50cm, a mixed solution of 0.3% urea and 0.2% potassium dihydrogen phosphate, being 30kg/667m<2>, is sprayed every 16 days, so that the effect of prevention with medicaments can be achieved.

Description

technical field [0001] The invention relates to the technical field of agricultural seedling raising, in particular to a seedling raising method for effectively reducing the occurrence of goldenrod rust. Background technique [0002] Solidago is a polymorphic species, with great changes in leaf shape and inflorescence style, erect stems, usually thin and thin, solitary or a few clusters, unbranched or branched above the middle, middle stems and leaves are oval, oblong Shaped, ovate or broadly lanceolate, leaves pubescent on both sides, along veins and leaf margins or glabrous below, flower heads are small, 6-8 mm long, 6-9 mm wide, mostly arranged on the upper part of the stem Form compact or loose racemes or corymb panicles with a length of 6-25 cm, rarely arranged in compound heads, the whole herb is used as medicine, with pungent, bitter, slightly warm nature, can eliminate wind and heat, detoxify and clear swelling ; [0003] In the cultivation of goldenrod, it is easy...

AI Technical Summary

Problems solved by technology

[0003] In the cultivation of goldenrod, it is easy to get rust. Rust is a kind of fungus. Yellow rust-like spots grow on the back of the leaves of the affected plants, and yellow powder is produced from the cap. The content of prevention and treatment of rust in " is: before the seedlings are transplanted and after the field turns green, spray the front and back sides of the l